Abstract

Using a space-dependent rate-equation model and considering the effect of pump beam quality, the optimum pump condition for a fiber-coupled diode end-pumped neodymium yttrium aluminum borate laser has been determined. Under optimum pump conditions, greater than 10% optical-to-optical conversion efficiency was obtained when the laser was pumped by a fiber-coupled laser diode with good beam quality. The influence of pump beam quality on the conversion efficiency is also discussed.

© 1998 Optical Society of America

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References

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  1. J. T. Lin, “Double jeopardy: the blue-green race’s new players,” Lasers Optron. 9, 34–40 (1990).
  2. J. T. Lin, “Progress report: diode pumping and frequency conversion,” Lasers Optron. 8, 61–66 (1989).
  3. S. C. Wang, R. E. Stone, J. T. Lin, “Characteristic of neodymium yttrium aluminum borate as a diode pumped laser material,” in Advanced Solid-State Lasers, H. P. Jensen, G. Dube, eds., Vol. 6 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1990), pp. 23–25.
  4. T. Y. Fan, A. Cordova-Plaza, M. J. F. Digonnet, R. L. Byer, H. J. Shaw, “Nd:MGO:LiNbO3 spectroscopy and laser devices,” J. Opt. Soc. Am. B 3, 140–146 (1986).
    [CrossRef]
  5. R. E. Stone, R. C. Spitzer, S. C. Wang, “A Q-switched diode-pumped neodymium yttrium aluminum borate laser,” IEEE Photon Technol. Lett. 2, 769–771 (1990).
    [CrossRef]
  6. J. H. Zarrabi, P. Gavrilovic, S. Singh, “Monolithic, self-frequency doubled, neodymium-doped yttrium aluminum borate green laser with low intensity noise,” Electron. Lett. 29, 1769–1770 (1993).
    [CrossRef]
  7. I. Schütz, I. Freitag, R. Wallenstein, “Miniature self-frequency-doubling cw Nd:YAB laser pumped by a diode-laser,” Opt. Commun. 77, 221–225 (1990).
    [CrossRef]
  8. Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
    [CrossRef]
  9. W. Chen, C. S. Roychoudhuri, C. M. Banas, “Design approaches for laser-diode material-processing systems using fibers and micro-optics,” Opt. Eng. 33, 3662–3669 (1994).
    [CrossRef]
  10. T. Y. Fan, A. Sanchez, “Pump source requirements for end-pumped lasers,” IEEE J. Quantum Electron. 26, 311–316 (1990).
    [CrossRef]

1996

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

1994

W. Chen, C. S. Roychoudhuri, C. M. Banas, “Design approaches for laser-diode material-processing systems using fibers and micro-optics,” Opt. Eng. 33, 3662–3669 (1994).
[CrossRef]

1993

J. H. Zarrabi, P. Gavrilovic, S. Singh, “Monolithic, self-frequency doubled, neodymium-doped yttrium aluminum borate green laser with low intensity noise,” Electron. Lett. 29, 1769–1770 (1993).
[CrossRef]

1990

I. Schütz, I. Freitag, R. Wallenstein, “Miniature self-frequency-doubling cw Nd:YAB laser pumped by a diode-laser,” Opt. Commun. 77, 221–225 (1990).
[CrossRef]

R. E. Stone, R. C. Spitzer, S. C. Wang, “A Q-switched diode-pumped neodymium yttrium aluminum borate laser,” IEEE Photon Technol. Lett. 2, 769–771 (1990).
[CrossRef]

T. Y. Fan, A. Sanchez, “Pump source requirements for end-pumped lasers,” IEEE J. Quantum Electron. 26, 311–316 (1990).
[CrossRef]

J. T. Lin, “Double jeopardy: the blue-green race’s new players,” Lasers Optron. 9, 34–40 (1990).

1989

J. T. Lin, “Progress report: diode pumping and frequency conversion,” Lasers Optron. 8, 61–66 (1989).

1986

Banas, C. M.

W. Chen, C. S. Roychoudhuri, C. M. Banas, “Design approaches for laser-diode material-processing systems using fibers and micro-optics,” Opt. Eng. 33, 3662–3669 (1994).
[CrossRef]

Byer, R. L.

Chen, W.

W. Chen, C. S. Roychoudhuri, C. M. Banas, “Design approaches for laser-diode material-processing systems using fibers and micro-optics,” Opt. Eng. 33, 3662–3669 (1994).
[CrossRef]

Chen, Y. F.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

Cordova-Plaza, A.

Digonnet, M. J. F.

Fan, T. Y.

T. Y. Fan, A. Sanchez, “Pump source requirements for end-pumped lasers,” IEEE J. Quantum Electron. 26, 311–316 (1990).
[CrossRef]

T. Y. Fan, A. Cordova-Plaza, M. J. F. Digonnet, R. L. Byer, H. J. Shaw, “Nd:MGO:LiNbO3 spectroscopy and laser devices,” J. Opt. Soc. Am. B 3, 140–146 (1986).
[CrossRef]

Freitag, I.

I. Schütz, I. Freitag, R. Wallenstein, “Miniature self-frequency-doubling cw Nd:YAB laser pumped by a diode-laser,” Opt. Commun. 77, 221–225 (1990).
[CrossRef]

Gavrilovic, P.

J. H. Zarrabi, P. Gavrilovic, S. Singh, “Monolithic, self-frequency doubled, neodymium-doped yttrium aluminum borate green laser with low intensity noise,” Electron. Lett. 29, 1769–1770 (1993).
[CrossRef]

Huang, T. M.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

Kao, C. F.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

Liao, T. S.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

Lin, J. T.

J. T. Lin, “Double jeopardy: the blue-green race’s new players,” Lasers Optron. 9, 34–40 (1990).

J. T. Lin, “Progress report: diode pumping and frequency conversion,” Lasers Optron. 8, 61–66 (1989).

S. C. Wang, R. E. Stone, J. T. Lin, “Characteristic of neodymium yttrium aluminum borate as a diode pumped laser material,” in Advanced Solid-State Lasers, H. P. Jensen, G. Dube, eds., Vol. 6 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1990), pp. 23–25.

Lin, K. H.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

Roychoudhuri, C. S.

W. Chen, C. S. Roychoudhuri, C. M. Banas, “Design approaches for laser-diode material-processing systems using fibers and micro-optics,” Opt. Eng. 33, 3662–3669 (1994).
[CrossRef]

Sanchez, A.

T. Y. Fan, A. Sanchez, “Pump source requirements for end-pumped lasers,” IEEE J. Quantum Electron. 26, 311–316 (1990).
[CrossRef]

Schütz, I.

I. Schütz, I. Freitag, R. Wallenstein, “Miniature self-frequency-doubling cw Nd:YAB laser pumped by a diode-laser,” Opt. Commun. 77, 221–225 (1990).
[CrossRef]

Shaw, H. J.

Singh, S.

J. H. Zarrabi, P. Gavrilovic, S. Singh, “Monolithic, self-frequency doubled, neodymium-doped yttrium aluminum borate green laser with low intensity noise,” Electron. Lett. 29, 1769–1770 (1993).
[CrossRef]

Spitzer, R. C.

R. E. Stone, R. C. Spitzer, S. C. Wang, “A Q-switched diode-pumped neodymium yttrium aluminum borate laser,” IEEE Photon Technol. Lett. 2, 769–771 (1990).
[CrossRef]

Stone, R. E.

R. E. Stone, R. C. Spitzer, S. C. Wang, “A Q-switched diode-pumped neodymium yttrium aluminum borate laser,” IEEE Photon Technol. Lett. 2, 769–771 (1990).
[CrossRef]

S. C. Wang, R. E. Stone, J. T. Lin, “Characteristic of neodymium yttrium aluminum borate as a diode pumped laser material,” in Advanced Solid-State Lasers, H. P. Jensen, G. Dube, eds., Vol. 6 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1990), pp. 23–25.

Wallenstein, R.

I. Schütz, I. Freitag, R. Wallenstein, “Miniature self-frequency-doubling cw Nd:YAB laser pumped by a diode-laser,” Opt. Commun. 77, 221–225 (1990).
[CrossRef]

Wang, S. C.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

R. E. Stone, R. C. Spitzer, S. C. Wang, “A Q-switched diode-pumped neodymium yttrium aluminum borate laser,” IEEE Photon Technol. Lett. 2, 769–771 (1990).
[CrossRef]

S. C. Wang, R. E. Stone, J. T. Lin, “Characteristic of neodymium yttrium aluminum borate as a diode pumped laser material,” in Advanced Solid-State Lasers, H. P. Jensen, G. Dube, eds., Vol. 6 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1990), pp. 23–25.

Zarrabi, J. H.

J. H. Zarrabi, P. Gavrilovic, S. Singh, “Monolithic, self-frequency doubled, neodymium-doped yttrium aluminum borate green laser with low intensity noise,” Electron. Lett. 29, 1769–1770 (1993).
[CrossRef]

Electron. Lett.

J. H. Zarrabi, P. Gavrilovic, S. Singh, “Monolithic, self-frequency doubled, neodymium-doped yttrium aluminum borate green laser with low intensity noise,” Electron. Lett. 29, 1769–1770 (1993).
[CrossRef]

IEEE J. Quantum Electron.

Y. F. Chen, T. S. Liao, C. F. Kao, T. M. Huang, K. H. Lin, S. C. Wang, “Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality,” IEEE J. Quantum Electron. 32, 2010–2016 (1996).
[CrossRef]

T. Y. Fan, A. Sanchez, “Pump source requirements for end-pumped lasers,” IEEE J. Quantum Electron. 26, 311–316 (1990).
[CrossRef]

IEEE Photon Technol. Lett.

R. E. Stone, R. C. Spitzer, S. C. Wang, “A Q-switched diode-pumped neodymium yttrium aluminum borate laser,” IEEE Photon Technol. Lett. 2, 769–771 (1990).
[CrossRef]

J. Opt. Soc. Am. B

Lasers Optron.

J. T. Lin, “Double jeopardy: the blue-green race’s new players,” Lasers Optron. 9, 34–40 (1990).

J. T. Lin, “Progress report: diode pumping and frequency conversion,” Lasers Optron. 8, 61–66 (1989).

Opt. Commun.

I. Schütz, I. Freitag, R. Wallenstein, “Miniature self-frequency-doubling cw Nd:YAB laser pumped by a diode-laser,” Opt. Commun. 77, 221–225 (1990).
[CrossRef]

Opt. Eng.

W. Chen, C. S. Roychoudhuri, C. M. Banas, “Design approaches for laser-diode material-processing systems using fibers and micro-optics,” Opt. Eng. 33, 3662–3669 (1994).
[CrossRef]

Other

S. C. Wang, R. E. Stone, J. T. Lin, “Characteristic of neodymium yttrium aluminum borate as a diode pumped laser material,” in Advanced Solid-State Lasers, H. P. Jensen, G. Dube, eds., Vol. 6 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1990), pp. 23–25.

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Figures (4)

Fig. 1
Fig. 1

Fiber-coupled diode pumping experimental setup.

Fig. 2
Fig. 2

Plot of calculated threshold pump power as a function of pump beam waists.

Fig. 3
Fig. 3

Plot of experimental (symbols) and theoretical results (solid curves) for output power versus optical pump power.

Fig. 4
Fig. 4

Plot of the dependence of green output power on the internal losses and the length of the NYAB crystal.

Equations (10)

Equations on this page are rendered with MathJax. Learn more.

P th = δ I sat V eff 2 L η p ,
V eff =   s l x ,   y ,   z r p x ,   y ,   z d ν - 1 ,
s l x ,   y ,   z = 2 π ω l 2 z L exp - 2   x 2 + y 2 ω l 2 z ,
ω l z = ω 0 1 + z λ l / π ω 0 2 2 1 / 2 ω 0 .
r p x ,   y ,   z = 2 α π ω P 2 z 1 - exp - α L × exp - 2   x 2 + y 2 ω p 2 z - α z ,
ω p z = ω p 0 + θ p | z - z 0 | ,
n θ ω = C λ / π .
θ p = C n ω p 0 .
P th = π ω 0 2 I sat δ 4 η p F C / n ,   α ,   L ,   ω 0 ,   ω p 0 ,   z 0 .
F C / n ,   α ,   L ,   ω 0 ,   ω p 0 ,   z 0 = 1 1 - exp - α L × 0 L α ω 0 2 exp - α z ω 0 2 + ω p 0 + C / n ω p 0 | z - z 0 | 2 d z ,

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