Abstract

We report the laser performance of resonantly diode-pumped Er:YAG from liquid nitrogen temperature to above room temperature. Relative to incident pump power, the best performance was observed at approximately 160 K. Spectroscopy and modeling show that this is due primarily to the changing efficiency of diode pump absorption as the absorption lines broaden with temperature. However, the physics of the Er:YAG system indicates that even with arbitrarily narrow pump linewidth the most efficient laser performance should occur at a temperature somewhat above 77 K. The causes of the temperature dependence are at least qualitatively understood.

© 2009 Optical Society of America

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  1. E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).
  2. P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, "High-Power/High-Brightness Diode-Pumped 1.9-µm Thulium and Resonantly Pumped 2.1-µm Holmium Lasers," IEEE J. Sel. Top. In Quantum Electron. 6, 629-635 (2000).
  3. T. Y. Fan, "Heat Generation in Nd:YAG and Yb:YAG," IEEE J. Quantum Electron. 29, 1457-1459 (1993).
  4. W. F. Krupke, "Ytterbium Solid-State Lasers - The First Decade," IEEE J. Sel. Top. Quantum Electron. 6, 1287-1296 (2000) and references therein.
  5. Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645-nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
    [PubMed]
  6. S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).
  7. S. D. Setzler, M. W. Francis, and E. P. Chicklis, "A 100 mJ Q-switched 1645 nm Er:YAG Laser," SPIE Defense and Security Symposium, paper 6552-17 (2007).
  8. D. Garbuzov, I. Kudryashov, and M. Dubinskii, "Resonantly diode laser pumped 1.6-µm-erbium-doped yttrium aluminum garnet solid-state laser," Appl. Phys. Lett. 86, 131115 (2005).
  9. D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W(0.9 J) pulsed power from resonantly diode-laser-pumped 1.6-µm Er:YAG laser," Appl. Phys. Lett. 87, 121101 (2005).
  10. J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).
  11. L. F. Johnson, J. E. Geusic, and L. G. Van Uitert, "Coherent Oscillations from Tm3+, Ho3+, Yb3+ and Er3+ Ions in Yttrium Aluminum Garnet," Appl. Phys. Lett. 7, 127-129 (1965).
  12. R. L. Fork, W. W. Walker, R. L. Laycock, J. J. A. Green, and S. T. Cole, "Integrated diamond sapphire laser," Opt. Express 11, 2532-2548 (2003).
    [PubMed]
  13. D. C. Brown, "The Promise of Cryogenic Solid-State Lasers," IEEE J Sel. Top. Quantum Electron. 11, 587-599 (2005).
  14. R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).
  15. T. Y. Fan, T. Crow, and B. Hoden, "Cooled Yb:YAG for high-power solid state lasers," SPIE 3381, 200-205 (1998).
  16. T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).
  17. M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).
  18. M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low-Photon-Defect Cryo-Laser Performance of Resonantly Diode-Pumped Er3+:YAG," Conference on Lasers and Electro-Optics 2007, paper CTuN1.
  19. N. Ter-Gabrielyan, L. D. Merkle, A. Ikesue, and M. Dubinskii, "Ultralow quantum-defect eye-safe Er3+:Sc2O3 Laser," Opt. Lett. 33, 1524-1526 (2008).
    [PubMed]
  20. R. D. Shannon, "Revised Effective Ionic Radii and Systematic Studies of Interatomic Distances in Halides and Chalcogenides," Acta Cryst. A 32, 751-767 (1976).
  21. J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).
  22. D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).
  23. A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).
  24. S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).
  25. J. A. Koningstein and J. E. Geusic, "Energy Levels and Crystal-Field Calculations of Er3+ in Yttrium Aluminum Garnet," Phys. Rev. 136, A726-A728 (1964).
  26. M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).
  27. J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).
  28. B. F. Aull and H. P. Jenssen, "Vibronic Interactions in Nd:YAG Resulting in Nonreciprocity of Absorption and Stimulated Emission Cross Sections," IEEE J. Quantum Electron. 18, 925-930 (1982).
  29. A. A. Kaminskii, Crystalline Lasers: Physical Processes and Operating Schemes (CRC Press, Boca Raton, FL, 1996), 188.
  30. R. J. Beach, "CW Theory of quasi-three level end-pumped laser oscillators," Opt. Commun. 123, 385-393 (1995).
  31. J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

2008 (1)

2007 (3)

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).

2005 (7)

D. C. Brown, "The Promise of Cryogenic Solid-State Lasers," IEEE J Sel. Top. Quantum Electron. 11, 587-599 (2005).

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "Resonantly diode laser pumped 1.6-µm-erbium-doped yttrium aluminum garnet solid-state laser," Appl. Phys. Lett. 86, 131115 (2005).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W(0.9 J) pulsed power from resonantly diode-laser-pumped 1.6-µm Er:YAG laser," Appl. Phys. Lett. 87, 121101 (2005).

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).

2004 (1)

2003 (1)

1998 (1)

T. Y. Fan, T. Crow, and B. Hoden, "Cooled Yb:YAG for high-power solid state lasers," SPIE 3381, 200-205 (1998).

1997 (1)

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

1995 (2)

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

R. J. Beach, "CW Theory of quasi-three level end-pumped laser oscillators," Opt. Commun. 123, 385-393 (1995).

1993 (2)

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

T. Y. Fan, "Heat Generation in Nd:YAG and Yb:YAG," IEEE J. Quantum Electron. 29, 1457-1459 (1993).

1992 (1)

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

1982 (2)

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

B. F. Aull and H. P. Jenssen, "Vibronic Interactions in Nd:YAG Resulting in Nonreciprocity of Absorption and Stimulated Emission Cross Sections," IEEE J. Quantum Electron. 18, 925-930 (1982).

1976 (2)

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

R. D. Shannon, "Revised Effective Ionic Radii and Systematic Studies of Interatomic Distances in Halides and Chalcogenides," Acta Cryst. A 32, 751-767 (1976).

1965 (1)

L. F. Johnson, J. E. Geusic, and L. G. Van Uitert, "Coherent Oscillations from Tm3+, Ho3+, Yb3+ and Er3+ Ions in Yttrium Aluminum Garnet," Appl. Phys. Lett. 7, 127-129 (1965).

1964 (1)

J. A. Koningstein and J. E. Geusic, "Energy Levels and Crystal-Field Calculations of Er3+ in Yttrium Aluminum Garnet," Phys. Rev. 136, A726-A728 (1964).

Aggarwal, R. L.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).

Allik, T. H.

D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Ashurov, M. Kh.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Aull, B. F.

B. F. Aull and H. P. Jenssen, "Vibronic Interactions in Nd:YAG Resulting in Nonreciprocity of Absorption and Stimulated Emission Cross Sections," IEEE J. Quantum Electron. 18, 925-930 (1982).

Beach, R. J.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

R. J. Beach, "CW Theory of quasi-three level end-pumped laser oscillators," Opt. Commun. 123, 385-393 (1995).

Brown, D. C.

D. C. Brown, "The Promise of Cryogenic Solid-State Lasers," IEEE J Sel. Top. Quantum Electron. 11, 587-599 (2005).

Budni, P. A.

Butaeva, T. I.

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Chann, B.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

Chase, L. L.

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

Cheney, F.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Chicklis, E. P.

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645-nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
[PubMed]

Cole, S. T.

Crow, T.

T. Y. Fan, T. Crow, and B. Hoden, "Cooled Yb:YAG for high-power solid state lasers," SPIE 3381, 200-205 (1998).

Denisenko, G. A.

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Dubinskii, M.

N. Ter-Gabrielyan, L. D. Merkle, A. Ikesue, and M. Dubinskii, "Ultralow quantum-defect eye-safe Er3+:Sc2O3 Laser," Opt. Lett. 33, 1524-1526 (2008).
[PubMed]

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W(0.9 J) pulsed power from resonantly diode-laser-pumped 1.6-µm Er:YAG laser," Appl. Phys. Lett. 87, 121101 (2005).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "Resonantly diode laser pumped 1.6-µm-erbium-doped yttrium aluminum garnet solid-state laser," Appl. Phys. Lett. 86, 131115 (2005).

Edsall, P.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Emanuel, M. A.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

Fan, T. Y.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).

T. Y. Fan, T. Crow, and B. Hoden, "Cooled Yb:YAG for high-power solid state lasers," SPIE 3381, 200-205 (1998).

T. Y. Fan, "Heat Generation in Nd:YAG and Yb:YAG," IEEE J. Quantum Electron. 29, 1457-1459 (1993).

Fedorov, V. A.

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Fork, R. L.

Francis, M. P.

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

Gagliano, D. A.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Garbuzov, D.

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "Resonantly diode laser pumped 1.6-µm-erbium-doped yttrium aluminum garnet solid-state laser," Appl. Phys. Lett. 86, 131115 (2005).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W(0.9 J) pulsed power from resonantly diode-laser-pumped 1.6-µm Er:YAG laser," Appl. Phys. Lett. 87, 121101 (2005).

Geusic, J. E.

L. F. Johnson, J. E. Geusic, and L. G. Van Uitert, "Coherent Oscillations from Tm3+, Ho3+, Yb3+ and Er3+ Ions in Yttrium Aluminum Garnet," Appl. Phys. Lett. 7, 127-129 (1965).

J. A. Koningstein and J. E. Geusic, "Energy Levels and Crystal-Field Calculations of Er3+ in Yttrium Aluminum Garnet," Phys. Rev. 136, A726-A728 (1964).

Green, J. J. A.

Gruber, J. B.

D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Hills, M. E.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Hoden, B.

T. Y. Fan, T. Crow, and B. Hoden, "Cooled Yb:YAG for high-power solid state lasers," SPIE 3381, 200-205 (1998).

Honea, E. C.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

Ikesue, A.

Jenssen, H. P.

B. F. Aull and H. P. Jenssen, "Vibronic Interactions in Nd:YAG Resulting in Nonreciprocity of Absorption and Stimulated Emission Cross Sections," IEEE J. Quantum Electron. 18, 925-930 (1982).

Johnson, L. F.

L. F. Johnson, J. E. Geusic, and L. G. Van Uitert, "Coherent Oscillations from Tm3+, Ho3+, Yb3+ and Er3+ Ions in Yttrium Aluminum Garnet," Appl. Phys. Lett. 7, 127-129 (1965).

Kaminskii, A. A.

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Koningstein, J. A.

J. A. Koningstein and J. E. Geusic, "Energy Levels and Crystal-Field Calculations of Er3+ in Yttrium Aluminum Garnet," Phys. Rev. 136, A726-A728 (1964).

Konves, J. R.

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

Krupke, W. F.

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

Kudryashov, I.

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "Resonantly diode laser pumped 1.6-µm-erbium-doped yttrium aluminum garnet solid-state laser," Appl. Phys. Lett. 86, 131115 (2005).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W(0.9 J) pulsed power from resonantly diode-laser-pumped 1.6-µm Er:YAG laser," Appl. Phys. Lett. 87, 121101 (2005).

Kway, W. L.

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

Laycock, R. L.

Lund, D. J.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Merkle, L. D.

N. Ter-Gabrielyan, L. D. Merkle, A. Ikesue, and M. Dubinskii, "Ultralow quantum-defect eye-safe Er3+:Sc2O3 Laser," Opt. Lett. 33, 1524-1526 (2008).
[PubMed]

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).

Mitchell, S. C.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

Morrison, C. A.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Newburgh, G. A.

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).

Nijjar, A. S.

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

Ochoa, J. R.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).

Osiko, V. V.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Payne, S. A.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

Petrosyan, A. G.

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Pollak, T. M.

Quaqliano, J. R.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Reid, M. F.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Richardson, F. S.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Ripin, D. J.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).

Russell, C.

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

Russell, C. C.

D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).

Sardar, D. K.

D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

Sarkisov, S. E.

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Seltzer, M. D.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Setzler, S. D.

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645-nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
[PubMed]

Shannon, R. D.

R. D. Shannon, "Revised Effective Ionic Radii and Systematic Studies of Interatomic Distances in Halides and Chalcogenides," Acta Cryst. A 32, 751-767 (1976).

Skidmore, J. A.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

Smith, L. K.

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

Snell, K. J.

Sobol, A. A.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Speth, J. A.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

Spitzberg, J.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

Starikov, B. P.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Stevens, S. B.

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Stuck, B. E.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Sutton, S. B.

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

Ter-Gabrielyan, N.

N. Ter-Gabrielyan, L. D. Merkle, A. Ikesue, and M. Dubinskii, "Ultralow quantum-defect eye-safe Er3+:Sc2O3 Laser," Opt. Lett. 33, 1524-1526 (2008).
[PubMed]

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).

Tilleman, M.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

Timoshechkin, M. I.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Van Uitert, L. G.

L. F. Johnson, J. E. Geusic, and L. G. Van Uitert, "Coherent Oscillations from Tm3+, Ho3+, Yb3+ and Er3+ Ions in Yttrium Aluminum Garnet," Appl. Phys. Lett. 7, 127-129 (1965).

Voronko, Yu. K.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Walker, W. W.

White, J. O.

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

Yablonskii, A. Ya.

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

Young, Y. E.

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

Y. E. Young, S. D. Setzler, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, "Efficient 1645-nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004).
[PubMed]

Yow, R. M.

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

Zandi, B.

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

Zuclich, J. A.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Zwick, H.

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Acta Cryst. A (1)

R. D. Shannon, "Revised Effective Ionic Radii and Systematic Studies of Interatomic Distances in Halides and Chalcogenides," Acta Cryst. A 32, 751-767 (1976).

Appl. Phys. Lett. (3)

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "Resonantly diode laser pumped 1.6-µm-erbium-doped yttrium aluminum garnet solid-state laser," Appl. Phys. Lett. 86, 131115 (2005).

D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W(0.9 J) pulsed power from resonantly diode-laser-pumped 1.6-µm Er:YAG laser," Appl. Phys. Lett. 87, 121101 (2005).

L. F. Johnson, J. E. Geusic, and L. G. Van Uitert, "Coherent Oscillations from Tm3+, Ho3+, Yb3+ and Er3+ Ions in Yttrium Aluminum Garnet," Appl. Phys. Lett. 7, 127-129 (1965).

IEEE J Sel. Top. Quantum Electron. (1)

D. C. Brown, "The Promise of Cryogenic Solid-State Lasers," IEEE J Sel. Top. Quantum Electron. 11, 587-599 (2005).

IEEE J. Quantum Electron. (4)

E. C. Honea, R. J. Beach, S. B. Sutton, J. A. Speth, S. C. Mitchell, J. A. Skidmore, M. A. Emanuel, and S. A. Payne, "115-W Tm:YAG Diode-Pumped Solid-State Laser," IEEE J. Quantum Electron. 33, 1592-1600 (1997).

T. Y. Fan, "Heat Generation in Nd:YAG and Yb:YAG," IEEE J. Quantum Electron. 29, 1457-1459 (1993).

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and W. F. Krupke, "Infrared Cross-Section Measurements for Crystals Doped with Er3+, Tm3+, and Ho3+," IEEE J. Quantum Electron. 28, 2619-2630 (1992).

B. F. Aull and H. P. Jenssen, "Vibronic Interactions in Nd:YAG Resulting in Nonreciprocity of Absorption and Stimulated Emission Cross Sections," IEEE J. Quantum Electron. 18, 925-930 (1982).

IEEE J. Sel. Top. Quantum Electron. (2)

S. D. Setzler, M. P. Francis, Y. E. Young, J. R. Konves, and E. P. Chicklis, "Resonantly Pumped Eyesafe Erbium Lasers," IEEE J. Sel. Top. Quantum Electron. 11, 645-657 (2005).

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, "Cryogenic Yb3+-Doped Solid-State Lasers," IEEE J. Sel. Top. Quantum Electron. 13,448-459 (2007).

J. Appl. Phys. (3)

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, "Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAlO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2 and KY(WO4)2 laser crystals in the 80-300 K temperature range," J. Appl. Phys. 98, 103514 (2005).

J. B. Gruber, A. S. Nijjar, D. K. Sardar, R. M. Yow, C. RussellIII, T. H. Allik, and B. Zandi, "Spectral analysis and energy-level structure of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12", J. Appl. Phys. 97, 063519 (2005).

D. K. Sardar, C. C. RussellIII, J. B. Gruber, and T. H. Allik, "Absorption intensities and emission cross sections of principal intermanifold and inter-Stark transitions of Er3+(4f11) in polycrystalline ceramic garnet Y3Al5O12," J. Appl. Phys. 97, 123501 (2005).

J. Opt. Soc. A B (1)

J. O. White, M. Dubinskii, L. D. Merkle, I. Kudryashov, and D. Garbuzov, "Resonant pumping and upconversion in 1.6 µm Er3+ lasers," J. Opt. Soc. A B 24, 2454-2460 (2007).

Opt. Commun. (1)

R. J. Beach, "CW Theory of quasi-three level end-pumped laser oscillators," Opt. Commun. 123, 385-393 (1995).

Opt. Express (1)

Opt. Lett. (2)

Phys. Rev. (1)

J. A. Koningstein and J. E. Geusic, "Energy Levels and Crystal-Field Calculations of Er3+ in Yttrium Aluminum Garnet," Phys. Rev. 136, A726-A728 (1964).

Phys. Rev. B (1)

J. B. Gruber, J. R. Quaqliano, M. F. Reid, F. S. Richardson, M. E. Hills, M. D. Seltzer, S. B. Stevens, C. A. Morrison, and T. H. Allik, "Energy levels and correlation crystal-field effects in Er3+-doped garnets," Phys. Rev. B 48, 15561-15573 (1993).

Phys. Stat. Sol. (A) (2)

M. Kh. Ashurov, Yu. K. Voronko, V. V. Osiko, A. A. Sobol, B. P. Starikov, M. I. Timoshechkin, and A. Ya. Yablonskii, "Inequivalent Luminescence Centres of Er3+ in Gallium Garnet Single Crystals," Phys. Stat. Sol. (A) 35, 645-649 (1976).

A. A. Kaminskii, A. G. Petrosyan, G. A. Denisenko, T. I. Butaeva, V. A. Fedorov, and S. E. Sarkisov, "Spectroscopic Properties and 3 µm Stimulated Emission of Er3+ Ions in the (Y1-xErx)3Al5O12 and (Lu1-xErx)3Al5O12 Garnet Crystal Systems," Phys. Stat. Sol. (A) 71, 291-312 (1982).

Proc. SPIE (1)

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low Photon Defect Diode-Pumped Cryo-Cooled Er:YAG Laser," Proc. SPIE 6552, 65520M (2007).

SPIE (2)

T. Y. Fan, T. Crow, and B. Hoden, "Cooled Yb:YAG for high-power solid state lasers," SPIE 3381, 200-205 (1998).

J. A. Zuclich, D. A. Gagliano, F. Cheney, B. E. Stuck, H. Zwick, P. Edsall, and D. J. Lund, "Ocular effects of penetrating IR laser wavelengths," SPIE 2391, 112-125 (1995).

Other (5)

S. D. Setzler, M. W. Francis, and E. P. Chicklis, "A 100 mJ Q-switched 1645 nm Er:YAG Laser," SPIE Defense and Security Symposium, paper 6552-17 (2007).

W. F. Krupke, "Ytterbium Solid-State Lasers - The First Decade," IEEE J. Sel. Top. Quantum Electron. 6, 1287-1296 (2000) and references therein.

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, "High-Power/High-Brightness Diode-Pumped 1.9-µm Thulium and Resonantly Pumped 2.1-µm Holmium Lasers," IEEE J. Sel. Top. In Quantum Electron. 6, 629-635 (2000).

M. Dubinskii, N. Ter-Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Ultra-Low-Photon-Defect Cryo-Laser Performance of Resonantly Diode-Pumped Er3+:YAG," Conference on Lasers and Electro-Optics 2007, paper CTuN1.

A. A. Kaminskii, Crystalline Lasers: Physical Processes and Operating Schemes (CRC Press, Boca Raton, FL, 1996), 188.

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Figures (5)

Fig. 1.
Fig. 1.

Apparatus for low-temperature laser experiments. A: Pump laser diode array. B: Pump beam focusing optics. C: dichroic mirror. D: Output coupler. E: Er:YAG laser gain medium. F: Liquid nitrogen optical cryostat.

Fig. 2.
Fig. 2.

Laser performance of 2% Er:YAG at approximately 78 K, with output coupler reflectivity = 0.9. The error bars represent the estimated uncertainty of ±10% for the absorbed pump and ±5% for the output.

Fig. 3.
Fig. 3.

Laser output of 2% Er:YAG vs temperature for fixed incident pump power. Solid curve: experimental data. Open circles: fit with pump area = 0.050 cm2 and mode fill efficiency = 0.5. The dotted curve is a guide to the eye. Filled triangles: fit with pump area = 0.35 cm2 and mode fill efficiency = 0.6. The error bar represents the ±5% uncertainty in output energy.

Fig. 4.
Fig. 4.

Ground state absorption (dashed curves) and stimulated emission (solid curves) spectra of 0.5% Er:YAG at 77, 150 and 300 K.

Fig. 5.
Fig. 5.

Single-pass transmission of the diode laser array pump by 2% Er:YAG laser sample at two temperatures. Dashed curve: incident pump spectrum. Solid curve: calculated transmitted pump spectrum.

Tables (3)

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Table 1. Temperature dependence of the fluorescence lifetime of 0.5% Er:YAG, averaged over the two emission wavelengths.

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Table 2. Temperature dependence of the fraction of diode pump power absorbed, based on spectroscopically determined absorption.

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Table 3. Temperature-dependent parameters used in laser wavelength and power models. The meanings of the symbols are given in the text.

Equations (5)

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g net = σ true · n Er · 2 L gain · ( f exc · f UL ( 1 f exc ) · f LL ) + ln ( R OC ) 0
η slope = F pump · η M · v L v P · 1 R OC R OC · 1 ( exp ( σ true · N 21 ) 1 ) · ( T 2 · exp ( σ true · N 21 ) + 1 )
P thr = h v p · N 2 · A F pump · τ
N 2 = F LL · n Er · L gain + ln ( 1 T 2 · R OC ) 2 σ true f LL + f UL
N 21 = ( f LL + f UL ) · N 2 f LL · n Er · L gain

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