Abstract

We report the shortest duration pulses obtained to date from an actively Q-switched Er:YAG laser pumped by a low spectral and spatial brightness laser diode. The 14.5 ns, 6 mJ pulses were obtained using a 1470 nm laser diode end-pumped co-planar folded zigzag slab architecture. We also present an analytical model that accurately predicts the pulse energy-duration product achievable from virtually all Q-switched Er:YAG lasers and high repetition rate quasi-three-level Q-switched lasers in general.

© 2016 Optical Society of America

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References

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  1. 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).
    [Crossref]
  2. W. Koechner, Solid-State Laser Engineering (Springer, 2013).
  3. W. G. Wagner and B. A. Lengyel, “Evolution of the giant pulse in a laser,” J. Appl. Phys. 34, 2040–2046 (1963).
    [Crossref]
  4. J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214–220 (1989).
    [Crossref]
  5. J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
    [Crossref]
  6. P. Li, Q. Wang, and D. Gao, “Maximum peak power generation from Q-switched lasers,” Opt. Laser Technol. 31, 247–250 (1999).
    [Crossref]
  7. V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
    [Crossref]
  8. R. J. Beach, “Optimization of quasi-three-level end-pumped Q-switched lasers,” IEEE J. Quantum Electron. 31, 1606–1613 (1995).
    [Crossref]
  9. R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).
  10. R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er: yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 1118 (2005).
    [Crossref]
  11. J. Kim, J. Sahu, and W. Clarkson, “High-energy Q-switched operation of a fiber-laser-pumped Er: YAG laser,” Appl. Phys. B 105, 263–267 (2011).
    [Crossref]
  12. S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
    [Crossref]
  13. M. Wang, J. Meng, X. Hou, and W. Chen, “In-band pumped polarized, narrow-linewidth Er: YAG laser at 1645 nm,” Appl. Opt. 53, 7153–7156 (2014).
    [Crossref] [PubMed]
  14. N. Chang, N. Simakov, D. Hosken, J. Munch, D. Ottaway, and P. Veitch, “Resonantly diode-pumped continuous-wave and Q-switched Er: YAG laser at 1645 nm,” Opt. Express 18, 13673–13678 (2010).
    [Crossref] [PubMed]
  15. I. Kudryashov and A. Katsnelson, “1645-nm Q-switched Er: YAG laser with in-band diode pumping,” in SPIE Defense, Security, and Sensing, (SPIE, 2010), pp. 76860B.
  16. J. Richards and A. McInnes, “Versatile, efficient, diode-pumped miniature slab laser,” Opt. Lett. 20, 371–373 (1995).
    [Crossref] [PubMed]
  17. J. Eggleston, L. Frantz, and H. Injeyan, “Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers,” IEEE J. Quantum Electron. 25, 1855–1862 (1989).
    [Crossref]
  18. R. B. Kay and D. Poulios, “Q-switched rate equations for diode side-pumped slab and zigzag slab lasers including gaussian beam shapes,” IEEE J. Quantum Electron. 41, 1278–1284 (2005).
    [Crossref]
  19. R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
    [Crossref]

2014 (1)

2011 (2)

J. Kim, J. Sahu, and W. Clarkson, “High-energy Q-switched operation of a fiber-laser-pumped Er: YAG laser,” Appl. Phys. B 105, 263–267 (2011).
[Crossref]

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

2010 (1)

2009 (1)

V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
[Crossref]

2005 (3)

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er: yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 1118 (2005).
[Crossref]

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).
[Crossref]

R. B. Kay and D. Poulios, “Q-switched rate equations for diode side-pumped slab and zigzag slab lasers including gaussian beam shapes,” IEEE J. Quantum Electron. 41, 1278–1284 (2005).
[Crossref]

1999 (1)

P. Li, Q. Wang, and D. Gao, “Maximum peak power generation from Q-switched lasers,” Opt. Laser Technol. 31, 247–250 (1999).
[Crossref]

1995 (3)

R. J. Beach, “Optimization of quasi-three-level end-pumped Q-switched lasers,” IEEE J. Quantum Electron. 31, 1606–1613 (1995).
[Crossref]

J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
[Crossref]

J. Richards and A. McInnes, “Versatile, efficient, diode-pumped miniature slab laser,” Opt. Lett. 20, 371–373 (1995).
[Crossref] [PubMed]

1989 (2)

J. Eggleston, L. Frantz, and H. Injeyan, “Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers,” IEEE J. Quantum Electron. 25, 1855–1862 (1989).
[Crossref]

J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214–220 (1989).
[Crossref]

1963 (1)

W. G. Wagner and B. A. Lengyel, “Evolution of the giant pulse in a laser,” J. Appl. Phys. 34, 2040–2046 (1963).
[Crossref]

Beach, R. J.

R. J. Beach, “Optimization of quasi-three-level end-pumped Q-switched lasers,” IEEE J. Quantum Electron. 31, 1606–1613 (1995).
[Crossref]

Budni, P. A.

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

Chang, N.

Chen, W.

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).
[Crossref]

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

Clarke, G. B.

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

Clarkson, W.

J. Kim, J. Sahu, and W. Clarkson, “High-energy Q-switched operation of a fiber-laser-pumped Er: YAG laser,” Appl. Phys. B 105, 263–267 (2011).
[Crossref]

Coyle, D. B.

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

Degnan, J. J.

J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
[Crossref]

J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214–220 (1989).
[Crossref]

Eggleston, J.

J. Eggleston, L. Frantz, and H. Injeyan, “Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers,” IEEE J. Quantum Electron. 25, 1855–1862 (1989).
[Crossref]

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).
[Crossref]

Frantz, L.

J. Eggleston, L. Frantz, and H. Injeyan, “Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers,” IEEE J. Quantum Electron. 25, 1855–1862 (1989).
[Crossref]

Gao, D.

P. Li, Q. Wang, and D. Gao, “Maximum peak power generation from Q-switched lasers,” Opt. Laser Technol. 31, 247–250 (1999).
[Crossref]

Garvin, C. G.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Hannon, S. M.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Hartman, R.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Henderson, S. W.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Hosken, D.

Hou, X.

Injeyan, H.

J. Eggleston, L. Frantz, and H. Injeyan, “Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers,” IEEE J. Quantum Electron. 25, 1855–1862 (1989).
[Crossref]

Katsnelson, A.

I. Kudryashov and A. Katsnelson, “1645-nm Q-switched Er: YAG laser with in-band diode pumping,” in SPIE Defense, Security, and Sensing, (SPIE, 2010), pp. 76860B.

Kay, R. B.

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

R. B. Kay and D. Poulios, “Q-switched rate equations for diode side-pumped slab and zigzag slab lasers including gaussian beam shapes,” IEEE J. Quantum Electron. 41, 1278–1284 (2005).
[Crossref]

Kim, J.

J. Kim, J. Sahu, and W. Clarkson, “High-energy Q-switched operation of a fiber-laser-pumped Er: YAG laser,” Appl. Phys. B 105, 263–267 (2011).
[Crossref]

Kisel, V.E.

V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
[Crossref]

Koechner, W.

W. Koechner, Solid-State Laser Engineering (Springer, 2013).

Kondratyuk, N.V.

V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
[Crossref]

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).
[Crossref]

Kudryashov, I.

I. Kudryashov and A. Katsnelson, “1645-nm Q-switched Er: YAG laser with in-band diode pumping,” in SPIE Defense, Security, and Sensing, (SPIE, 2010), pp. 76860B.

Kuleshov, N.V.

V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
[Crossref]

Lengyel, B. A.

W. G. Wagner and B. A. Lengyel, “Evolution of the giant pulse in a laser,” J. Appl. Phys. 34, 2040–2046 (1963).
[Crossref]

Leyva, V.

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er: yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 1118 (2005).
[Crossref]

Li, P.

P. Li, Q. Wang, and D. Gao, “Maximum peak power generation from Q-switched lasers,” Opt. Laser Technol. 31, 247–250 (1999).
[Crossref]

Malm, A. I.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

McInnes, A.

Meng, J.

Munch, J.

Ottaway, D.

Pelk, J. V.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Pollak, T. M.

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

Poulios, D.

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

R. B. Kay and D. Poulios, “Q-switched rate equations for diode side-pumped slab and zigzag slab lasers including gaussian beam shapes,” IEEE J. Quantum Electron. 41, 1278–1284 (2005).
[Crossref]

Richards, J.

Sahu, J.

J. Kim, J. Sahu, and W. Clarkson, “High-energy Q-switched operation of a fiber-laser-pumped Er: YAG laser,” Appl. Phys. B 105, 263–267 (2011).
[Crossref]

Schneider, E. A.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

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).
[Crossref]

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

Simakov, N.

Snell, K. J.

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

Spariosu, K.

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er: yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 1118 (2005).
[Crossref]

Stoneman, R. C.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Stultz, R. D.

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er: yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 1118 (2005).
[Crossref]

Stysley, P. R.

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

Veitch, P.

Vetorino, S. R.

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

Wagner, W. G.

W. G. Wagner and B. A. Lengyel, “Evolution of the giant pulse in a laser,” J. Appl. Phys. 34, 2040–2046 (1963).
[Crossref]

Wang, M.

Wang, Q.

P. Li, Q. Wang, and D. Gao, “Maximum peak power generation from Q-switched lasers,” Opt. Laser Technol. 31, 247–250 (1999).
[Crossref]

Yasukevich, A.S.

V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
[Crossref]

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).
[Crossref]

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

Appl. Opt. (1)

Appl. Phys. B (1)

J. Kim, J. Sahu, and W. Clarkson, “High-energy Q-switched operation of a fiber-laser-pumped Er: YAG laser,” Appl. Phys. B 105, 263–267 (2011).
[Crossref]

Appl. Phys. Lett. (1)

R. D. Stultz, V. Leyva, and K. Spariosu, “Short pulse, high-repetition rate, passively Q-switched Er: yttrium-aluminum-garnet laser at 1.6 microns,” Appl. Phys. Lett. 87, 1118 (2005).
[Crossref]

IEEE J. Quantum Electron. (6)

J. Eggleston, L. Frantz, and H. Injeyan, “Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers,” IEEE J. Quantum Electron. 25, 1855–1862 (1989).
[Crossref]

R. B. Kay and D. Poulios, “Q-switched rate equations for diode side-pumped slab and zigzag slab lasers including gaussian beam shapes,” IEEE J. Quantum Electron. 41, 1278–1284 (2005).
[Crossref]

R. B. Kay, D. Poulios, D. B. Coyle, P. R. Stysley, and G. B. Clarke, “Derivation of the Frantz-Nodvik equation for diode-side-pumped zigzag slab laser amplifiers with gaussian laser mode and pump beam shapes,” IEEE J. Quantum Electron. 47, 745–749 (2011).
[Crossref]

J. J. Degnan, “Theory of the optimally coupled Q-switched laser,” IEEE J. Quantum Electron. 25, 214–220 (1989).
[Crossref]

J. J. Degnan, “Optimization of passively Q-switched lasers,” IEEE J. Quantum Electron. 31, 1890–1901 (1995).
[Crossref]

R. J. Beach, “Optimization of quasi-three-level end-pumped Q-switched lasers,” IEEE J. Quantum Electron. 31, 1606–1613 (1995).
[Crossref]

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

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).
[Crossref]

J. Appl. Phys. (1)

W. G. Wagner and B. A. Lengyel, “Evolution of the giant pulse in a laser,” J. Appl. Phys. 34, 2040–2046 (1963).
[Crossref]

Opt. Express (1)

Opt. Laser Technol. (1)

P. Li, Q. Wang, and D. Gao, “Maximum peak power generation from Q-switched lasers,” Opt. Laser Technol. 31, 247–250 (1999).
[Crossref]

Opt. Lett. (1)

Quantum Electron. (1)

V.E. Kisel, A.S. Yasukevich, N.V. Kondratyuk, and N.V. Kuleshov, “Diode-pumped passively Q-switched high-repetition-rate Yb microchip laser,” Quantum Electron. 39, 1018 (2009).
[Crossref]

Other (4)

W. Koechner, Solid-State Laser Engineering (Springer, 2013).

R. C. Stoneman, R. Hartman, E. A. Schneider, A. I. Malm, S. R. Vetorino, C. G. Garvin, J. V. Pelk, S. M. Hannon, and S. W. Henderson, “Eyesafe 1.6 μ m Er: YAG transmitters for coherent laser radar,” in Proceedings of 14th Coherent Laser Radar Conference (CLRC XIV) (2007).

S. D. Setzler, Y. E. Young, K. J. Snell, P. A. Budni, T. M. Pollak, and E. P. Chicklis, “High-peak-power erbium lasers resonantly pumped by fiber lasers,” Proc. SPIE5332, 85–96 (2004).
[Crossref]

I. Kudryashov and A. Katsnelson, “1645-nm Q-switched Er: YAG laser with in-band diode pumping,” in SPIE Defense, Security, and Sensing, (SPIE, 2010), pp. 76860B.

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Figures (8)

Fig. 1
Fig. 1

Left: A plot of the upper manifold population densities at the start (Ni) and end (Nf) of the pulse for a given initial population density (Ni). Right: A plot of the dependence of the pulse energy and width on the initial population density.

Fig. 2
Fig. 2

Comparison of the pulse duration versus pulse energy for the complete numerical solution and the small ΔNi solution described in Eq. (14)

Fig. 3
Fig. 3

Schematic of the Q-switched laser incorporating the CPFS slab.

Fig. 4
Fig. 4

Plot of the output energy versus incident energy for the laser in long-pulse mode for the short 21mm slab (Left) and the long slab 35 mm slab (Right). The slope of the solid line corresponds to a slope efficiency of 40%.

Fig. 5
Fig. 5

Output pulse energy in long pulse-mode for both slabs versus output coupler reflectivity for an input pump pulse energy of 600 mJ.

Fig. 6
Fig. 6

Plot of the shape of the shortest duration pulse. The pulse shape was measured using an InGaAs photodiode with a 200 ps rise time and a 200 MHz bandwidth oscilloscope.

Fig. 7
Fig. 7

Plot of the output energy and pulse duration versus input energy for the laser operated in Q-switched mode for the short 21 mm slab.

Fig. 8
Fig. 8

Left: Plot of the inverse of pulse duration versus pulse energy for a range of different cavity round trip times. Right: Plot of the EΔt/A versus tr for the two different slab lengths. The solid lines are predicted by Eq. (14) with the only free parameter being the beam overlap factor B

Tables (1)

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Table 1 Parameters used in the numerical simulation

Equations (17)

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d ϕ d t = ( σ L ( f 2 N 2 f 1 N 1 ) t r 1 t c ) ϕ
t c = t r δ + ln ( R )
d N 2 d t = d N 1 d t = σ B c ϕ ( f 2 N 2 f 1 N 1 )
d ϕ d N 2 = L B c t r + 1 σ B c ( f 2 N 2 f 1 N 1 ) t c
ϕ ( N 2 ) = ( N i N 2 ) L B c t r 1 t c σ B c ( f 1 + f 2 ) ln ( f 2 N i + f 1 N i f 1 N e f f f 2 N 2 + f 1 N 2 f 1 N e f f )
0 = ( N i N f ) t r σ L t c ( f 1 + f 2 ) ln ( f 2 N i + f 1 N i f 1 N e f f f 2 N f + f 1 N f f 1 N e f f )
N t = f 1 f 1 + f 2 N e f f + δ ln ( R ) σ L ( f 1 + f 2 ) = N t r a n s + δ ln ( R ) σ L ( f 1 + f 2 )
N t N f = N i N t
P ( N 2 ) = h γ A c ln ( R ) ϕ ( N 2 )
E = N i N f P ( N 2 ) d N 2 = h γ A ln ( R ) σ B ( f 1 + f 2 ) ln ( f 2 N i + f 1 N i f 1 N e f f f 2 N f + f 1 N f f 1 N e f f )
E = h γ A L ln ( R ) B N i N f δ ln ( R )
P p = h γ A ln ( R ) B × ( ( N i N t ) L t r 1 σ t c ( f 1 + f 2 ) ln ( f 2 N i + f 1 N i f 1 N e f f f 2 N t + f 1 N t f 1 N e f f ) )
P p = ln ( R ) δ ln ( R ) h γ A σ L 2 ( f 2 + f 1 ) ( N i N t ) 2 2 B t r
E × Δ t = E 2 P p e a k = 8 h γ A ln ( R ) t c B ( f 1 + f 2 ) σ = 8 h γ A t r B ( f 1 + f 2 ) σ ln ( R ) δ ln ( R )
N = N e f f ( σ 1617 f 1 @ 1617 σ 1645 f 1 @ 1645 ) σ 1645 ( f 2 @ 1645 + f 1 @ 1645 ) σ 1617 ( f 2 @ 1617 + f 1 @ 1617 )
0 = ( N i N f ) ( f 2 + f 1 ) N t f 1 N e f f ( f 1 + f 2 ) ln ( f 2 N i + f 1 N i f 1 N e f f f 2 N f + f 1 N f f 1 N e f f )
0 = Δ N i 2 Δ N f 2 2 ( N t ( f 2 + f 1 ) f 1 N e f f ) = ( N i + N f 2 N t ) ( N i N f ) 2 ( N t ( f 2 + f 1 ) f 1 N e f f )

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