Abstract

We have demonstrated tunability in a wavelength range of 1047–1051 nm, using the lowest pumping power known to us (1.4 W at 972 nm), for a cw single-diode-pumped Yb:YAG laser. The output power was 166 mW in the multimode regime and 73 mW in the fundamental transverse-mode regime. The laser efficiency was 12.8% and 21% with respect to the incident and the absorbed pump powers, respectively. The linewidth of the laser was Δλ = 0.05–0.07 cm-1 (1.5–2.1 GHz), which corresponds to two to three longitudinal cavity modes. A theoretical model of the laser has been developed. Experimental results are in good agreement with the theoretical model.

© 2000 Optical Society of America

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  1. T. Taira, W. M. Tulloch, R. L. Byer, “Modeling of quasi-three-level lasers and operation of cw Yb:YAG lasers,” Appl. Opt. 36, 1867–1874 (1997).
    [CrossRef] [PubMed]
  2. A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.
  3. P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.
  4. T. Y. Fan “Tunable single-frequency Yb3+:YAG laser with 1-W output power using twisted-mode technique,” IEEE Photon. Technol. Lett. 7, 1137–1138 (1995).
    [CrossRef]
  5. G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.
  6. T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.
  7. C. Honninger, F. Morier-Genoud, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Efficient and tunable diode-pumped femtosecond Yb:glass lasers,” Opt. Lett. 23, 126–128 (1998).
    [CrossRef]
  8. E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.
  9. C. L. Tang, H. Statz, G. de Mars, “Spectral output and spiking behavior of solid-state lasers,” J. Appl. Phys. 34, 2289–2294 (1963).
    [CrossRef]
  10. W. Koechner, Solid-State Laser Engineering (Springer-Verlag, Berlin, 1988).
    [CrossRef]
  11. L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

1998 (1)

1997 (1)

1995 (1)

T. Y. Fan “Tunable single-frequency Yb3+:YAG laser with 1-W output power using twisted-mode technique,” IEEE Photon. Technol. Lett. 7, 1137–1138 (1995).
[CrossRef]

1963 (1)

C. L. Tang, H. Statz, G. de Mars, “Spectral output and spiking behavior of solid-state lasers,” J. Appl. Phys. 34, 2289–2294 (1963).
[CrossRef]

Aggarwal, R. L.

P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.

Brauch, U.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Brovelli, L. R.

C. Honninger, F. Morier-Genoud, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Efficient and tunable diode-pumped femtosecond Yb:glass lasers,” Opt. Lett. 23, 126–128 (1998).
[CrossRef]

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Byer, R. L.

T. Taira, W. M. Tulloch, R. L. Byer, “Modeling of quasi-three-level lasers and operation of cw Yb:YAG lasers,” Appl. Opt. 36, 1867–1874 (1997).
[CrossRef] [PubMed]

T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.

Chase, L. L.

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

Choi, H. K.

P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.

de Mars, G.

C. L. Tang, H. Statz, G. de Mars, “Spectral output and spiking behavior of solid-state lasers,” J. Appl. Phys. 34, 2289–2294 (1963).
[CrossRef]

DeLoach, L. D.

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

Ehrt, D.

E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.

Fan, T. Y.

T. Y. Fan “Tunable single-frequency Yb3+:YAG laser with 1-W output power using twisted-mode technique,” IEEE Photon. Technol. Lett. 7, 1137–1138 (1995).
[CrossRef]

P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.

Giesen, A.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Graft, M.

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Harder, C.

C. Honninger, F. Morier-Genoud, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Efficient and tunable diode-pumped femtosecond Yb:glass lasers,” Opt. Lett. 23, 126–128 (1998).
[CrossRef]

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Heumann, E.

E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.

Honninger, C.

Huber, G.

E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.

Johannsen, I.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Karszewski, M.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Keller, U.

C. Honninger, F. Morier-Genoud, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Efficient and tunable diode-pumped femtosecond Yb:glass lasers,” Opt. Lett. 23, 126–128 (1998).
[CrossRef]

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Kobayashi, T.

T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.

Koechner, W.

W. Koechner, Solid-State Laser Engineering (Springer-Verlag, Berlin, 1988).
[CrossRef]

Krupke, W. F.

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

Kullberg, M. P.

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Kway, W. L.

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

Lacovara, P.

P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.

Mix, E.

E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.

Morier-Genoud, F.

Moser, M.

C. Honninger, F. Morier-Genoud, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Efficient and tunable diode-pumped femtosecond Yb:glass lasers,” Opt. Lett. 23, 126–128 (1998).
[CrossRef]

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Ohtaka, M.

T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.

Paschotta, R.

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Payne, S. A.

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

Saikawa, J.

T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.

Schiegg, U.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Seeber, W.

E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.

Smith, L. K.

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

Spuhler, G. J.

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

Statz, H.

C. L. Tang, H. Statz, G. de Mars, “Spectral output and spiking behavior of solid-state lasers,” J. Appl. Phys. 34, 2289–2294 (1963).
[CrossRef]

Stewen, C.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Taira, T.

T. Taira, W. M. Tulloch, R. L. Byer, “Modeling of quasi-three-level lasers and operation of cw Yb:YAG lasers,” Appl. Opt. 36, 1867–1874 (1997).
[CrossRef] [PubMed]

T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.

Tang, C. L.

C. L. Tang, H. Statz, G. de Mars, “Spectral output and spiking behavior of solid-state lasers,” J. Appl. Phys. 34, 2289–2294 (1963).
[CrossRef]

Tulloch, W. M.

Voss, A.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

Wang, C. A.

P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.

Appl. Opt. (1)

IEEE Photon. Technol. Lett. (1)

T. Y. Fan “Tunable single-frequency Yb3+:YAG laser with 1-W output power using twisted-mode technique,” IEEE Photon. Technol. Lett. 7, 1137–1138 (1995).
[CrossRef]

J. Appl. Phys. (1)

C. L. Tang, H. Statz, G. de Mars, “Spectral output and spiking behavior of solid-state lasers,” J. Appl. Phys. 34, 2289–2294 (1963).
[CrossRef]

Opt. Lett. (1)

Other (7)

E. Mix, E. Heumann, G. Huber, D. Ehrt, W. Seeber, “Efficient cw-laser operation of Yb-doped fluoride phosphate glass at room temperature,” in Advanced Solid-State Lasers, B. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 230–232.

W. Koechner, Solid-State Laser Engineering (Springer-Verlag, Berlin, 1988).
[CrossRef]

L. D. DeLoach, S. A. Payne, L. K. Smith, W. L. Kway, L. L. Chase, W. F. Krupke, “Spectral properties of Yb-doped crystals for laser applications,” in Advanced Solid-State Lasers, L. L. Chase, A. A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), pp. 293–295.

G. J. Spuhler, R. Paschotta, M. P. Kullberg, M. Graft, M. Moser, U. Keller, L. R. Brovelli, C. Harder, “Passively Q-switched Yb:YAG microchip laser using a semiconductor saturable absorber mirror,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Topics in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 187–189.

T. Taira, J. Saikawa, M. Ohtaka, T. Kobayashi, R. L. Byer, “Modeling of end-pumped quasi-three-level lasers by using an M2 factor and cw operation of tunable Yb:YAG miniature lasers,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, 1997), pp. 189–191.

A. Giesen, U. Brauch, I. Johannsen, M. Karszewski, U. Schiegg, C. Stewen, A. Voss, “Advanced tunability and high-power TEM00-operation of the Yb:YAG thin disc laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds. Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 280–284.

P. Lacovara, C. A. Wang, H. K. Choi, R. L. Aggarwal, T. Y. Fan, “Room-temperature InGaAs diode-pumped Yb:YAG laser,” in Advanced Solid-State Lasers, G. Dube, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 283–285.

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Figures (6)

Fig. 1
Fig. 1

Energy-level diagram of Yb3+ ions in the YAG crystal.

Fig. 2
Fig. 2

Absorption and emission spectra of the Yb3+:YAG crystal at 300 K. The Yb3+ concentration is 15 at. %.11

Fig. 3
Fig. 3

cw Yb:YAG laser setup: L1, L2, lenses.

Fig. 4
Fig. 4

Laser output power versus pumping power for three output couplers and internal cavity losses G as shown. Filled circles; results of the experiment; lines, the calculation results. OC, output coupler.

Fig. 5
Fig. 5

Tuning curve of the cw Yb:YAG laser.

Fig. 6
Fig. 6

Calculated dependence of the laser output power on laser output coupler’s reflectivity. Internal losses G are shown.

Equations (15)

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dn21dt=Wpn11-n21τ-σgIn21-n1ghνg,
dIdt=cσgIn21-n1g-γI,
n21=g21i g2i n2=A21n2,
n11=g11i g1i n1=A11n1,
n1g=g1gi g1i n1=A1gn1,
N0=n1+n2,
γ=c2l0ln1Rout+G,
n2=A1gN0+δA21+A1g,
n1=N0-n2,
kp=σpn1A11-n2A2k,
n2Pp, z=Ppexp-kpz1-exp-kpz2τopthνpSz2-z1,
αgPp, z=σgn2Pp, zA21-N0-n2Pp, zA1g,
αavPp=1l00l0 αgPp, zdz.
αavPp=γ=δσg.
Pout=ln1Routγνgνp1-exp-kpl0τoptPp-Pth.

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