Abstract

We demonstrate a 149 W Yb:LiYF4 laser with diffraction-limited beam quality at 995 nm. The laser, Q-switched at 10 kHz pulse repetition frequency, produces linearly polarized 52 ns pulses with a slope efficiency of 73%. The combination of cryogenic cooling and a low (3.5%) quantum defect results in minimal thermo-optic effects and high thermal efficiency. The measured heat load to the cryogen is 0.15 W per watt of output. These results show the potential for significant power scaling of Q-switched Yb:YLF lasers with excellent beam quality.

© 2013 Optical Society of America

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2012

2011

J.-P. M. Feve, M. J. Bohn, J. K. Brasseur, and K. Shortoff, Proc. SPIE 7912, 79121P (2011).
[CrossRef]

2010

2007

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

2005

D. C. Brown, IEEE J. Sel. Top. Quantum Electron. 11, 587 (2005).
[CrossRef]

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, J. Appl. Phys. 98, 103514 (2005).
[CrossRef]

2004

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

2003

1998

T. Y. Fan, T. Crow, and B. Hoden, Proc. SPIE 3381, 200 (1998).
[CrossRef]

Aggarwal, R. L.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, J. Appl. Phys. 98, 103514 (2005).
[CrossRef]

Bensalah, A.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Bohn, M. J.

J.-P. M. Feve, M. J. Bohn, J. K. Brasseur, and K. Shortoff, Proc. SPIE 7912, 79121P (2011).
[CrossRef]

Boulon, G.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Brasseur, J. K.

J.-P. M. Feve, M. J. Bohn, J. K. Brasseur, and K. Shortoff, Proc. SPIE 7912, 79121P (2011).
[CrossRef]

Brenier, A.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Brown, D. C.

D. C. Brown, IEEE J. Sel. Top. Quantum Electron. 11, 587 (2005).
[CrossRef]

Chann, B.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

Chosrowjan, H.

Crow, T.

T. Y. Fan, T. Crow, and B. Hoden, Proc. SPIE 3381, 200 (1998).
[CrossRef]

Fan, T.

Fan, T. Y.

D. Miller, L. Zapata, D. Ripin, and T. Y. Fan, Opt. Lett. 37, 2700 (2012).
[CrossRef]

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, J. Appl. Phys. 98, 103514 (2005).
[CrossRef]

T. Y. Fan, T. Crow, and B. Hoden, Proc. SPIE 3381, 200 (1998).
[CrossRef]

Feve, J.-P. M.

J.-P. M. Feve, M. J. Bohn, J. K. Brasseur, and K. Shortoff, Proc. SPIE 7912, 79121P (2011).
[CrossRef]

Fujita, M.

Fukuda, T.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Furuse, H.

Guyot, Y.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Hoden, B.

T. Y. Fan, T. Crow, and B. Hoden, Proc. SPIE 3381, 200 (1998).
[CrossRef]

Ito, M.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Izawa, Y.

Kawanaka, J.

Miller, D.

Miyanaga, N.

Nishioka, H.

Ochoa, J. R.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, J. Appl. Phys. 98, 103514 (2005).
[CrossRef]

Ripin, D.

Ripin, D. J.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, J. Appl. Phys. 98, 103514 (2005).
[CrossRef]

Rogalski, A.

A. Rogalski, Infrared Detectors, 2nd ed. (CRC Press, 2011).

Sato, H.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Shortoff, K.

J.-P. M. Feve, M. J. Bohn, J. K. Brasseur, and K. Shortoff, Proc. SPIE 7912, 79121P (2011).
[CrossRef]

Spitzberg, J.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

Takeshita, K.

Tilleman, M.

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

Ueda, K.-I.

Yamakawa, K.

Zapata, L.

IEEE J. Sel. Top. Quantum Electron.

D. C. Brown, IEEE J. Sel. Top. Quantum Electron. 11, 587 (2005).
[CrossRef]

T. Y. Fan, D. J. Ripin, R. L. Aggarwal, J. R. Ochoa, B. Chann, M. Tilleman, and J. Spitzberg, IEEE J. Sel. Top. Quantum Electron. 13, 448 (2007).
[CrossRef]

J. Appl. Phys.

R. L. Aggarwal, D. J. Ripin, J. R. Ochoa, and T. Y. Fan, J. Appl. Phys. 98, 103514 (2005).
[CrossRef]

Opt. Express

Opt. Lett.

Opt. Mater.

A. Bensalah, Y. Guyot, M. Ito, A. Brenier, H. Sato, T. Fukuda, and G. Boulon, Opt. Mater. 26, 375 (2004).
[CrossRef]

Proc. SPIE

T. Y. Fan, T. Crow, and B. Hoden, Proc. SPIE 3381, 200 (1998).
[CrossRef]

J.-P. M. Feve, M. J. Bohn, J. K. Brasseur, and K. Shortoff, Proc. SPIE 7912, 79121P (2011).
[CrossRef]

Other

A. Rogalski, Infrared Detectors, 2nd ed. (CRC Press, 2011).

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Figures (3)

Fig. 1.
Fig. 1.

Layout of the Q-switched oscillator. The folded 1.25-m-long cavity, formed between a concave high reflector (HR) and a flat output coupler, fits on a 2×2 breadboard. The Yb:YLF gain medium, located inside a liquid nitrogen cryostat, is end-pumped by a fiber-coupled diode laser through a dichroic mirror (DM). An acousto-optic q-switch (AO QS) is used to enable pulsed operation.

Fig. 2.
Fig. 2.

Output power for CW and pulsed operation at 10, 5, and 1.25 kHz PRF. Inset: near-field beam profile of 149 W laser output at 10 kHz PRF.

Fig. 3.
Fig. 3.

FWHM pulse duration as a function of output pulse energy for 10, 5. and 1.25 kHz PRF. Inset: typical single laser pulse at 5 kHz PRF at 106 W output (21 mJ).

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