Abstract

We have developed a 270-W 15-kHz MOPA system based on side-pumped rod-type Nd:YAG gain modules. The master oscillator is a 3-W 15-kHz <TEX>$TEM_{00}$</TEX> <TEX>$Nd:YVO_4$</TEX> laser with a pulse duration of 30 ns. To preserve the high beam quality during the amplification, we use image relay and polarization rotation which can simultaneously compensate for thermal lensing and thermal birefringence generated in the rod-type gain modules. After the amplification to 270 W with six rod-type gain modules, the beam quality factor (<TEX>$M^2$</TEX>) of the amplified laser beam is 5-10, and the pulse duration is maintained at 30 ns.

© 2008 Optical Society of Korea

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  1. D. Y. Jeong, K. H. Ko, G. Lim, and C. J. Kim, “Method for isotope separation of thallium,” US Patent 7,323,651 B2, 2008
  2. S. Palese, J. Harkenrider, W. Long, F. Chui, D. Hoffmaster, W. Burt, H. Injeyan, G. Conway, G. Truong, and F. Tapos, “High Brightness, End-Pumped, Conduction Cooled Nd:YAG Zig-Zag Slab Laser Architecture,” Advanced Solid State Lasers, C. Marshall, ed., vol. 50 of OSA Trends in Optics and Photonics (Optical Society of America, 2001), pp. 41–46
  3. P. Zhu, D. Li, P. Hu, A. Schell, P. Shi, C. R. Haas, N. Wu, and K. Du, “High efficiency 165 W near-diffractionlimited <TEX>$Nd:YVO_4$</TEX> slab oscillator pumped at 880 nm,” Opt. Lett. vol. 33, pp. 1930-1932, 2008
    [CrossRef]
  4. H. J. Moon, S. M. Lee, H. S. Kim, D. K. Ko, B. H. Cha, J. H. Yi, and J. M. Lee, “Operation Characteristics of Diode-Pumped, Bifocusing Compensated Two-Rod Nd:YAG Lasers with Diffusive Reflectors,” J. Korean Phys. Soc. vol. 39, pp. 881-885, 2001
  5. W. Koechner and D. K. Rice, “Effect of Birefringence on the Performance of Linearly Polarized YAG:Nd Lasers,” IEEE J. Quantum Elec., vol. 6, pp. 557-566, 1970
    [CrossRef]
  6. J. R. Park, J. Y. Lee, H. S. Kim, K. Y. Um, and H. J. Kong, “Characteristics of a Birefringence Compensation Scheme in Nd3+:YAG Rods Using a Polarization Rotator and Imaging Optics,” Opt. Rev. vol. 4, pp. 170-175, 1997
    [CrossRef]
  7. W. C. Scott and M. de Wit, “Birefringence compensation and TEM00 mode enhancement in a Nd:YAG laser,” Appl. Phys. Lett. vol. 18, pp. 3-4, 1971
    [CrossRef]
  8. J. Richards, “Birefringence compensation in polarization coupled lasers,” Appl. Opt. vol. 26, pp. 2514-2517, 1987
  9. R. Bhushan, K. Tsubakimoto, H. Yoshida, H. Fujita, and M. Nakatsuka, “Simultaneous compensation of birefringence and thermal lensing effect in a high average power Nd:YAG amplifier,” CLEO/Pacific Rim 2007, Technical Digest WP-11, pp. 557-558
  10. J. T. Hunt, J. A. Glaze, W. W. Simmons, and P. A. Renard, “Suppression of self-focusing through low-pass spatial filtering and relay imaging,” Appl. Opt. vol. 17, pp. 2053-2057, 1978
    [CrossRef]
  11. T. M. Jeong, C. W. Lee, D. K. Ko , J. M. Lee, and H. S. Kim, “Analysis of a Laser Resonator from the Measurement of Thermal Aberrations in a Laser-Diode Side-Pumped Nd:YAG Laser with a Wavefront Sensor,” J. Korean Phys. Soc. vol. 51, pp. 78-83, 2007
  12. T. M. Jeong, C. M. Kim , D. K. Ko, and J. M. Lee, “Reconstruction of Wavefront Aberration of 100-TW Ti:sapphire Laser Pulse Using Phase Retrieval Method,” J. Opt. Soc. Korea, vol. 12, pp. 186-191, 2008

2008 (3)

D. Y. Jeong, K. H. Ko, G. Lim, and C. J. Kim, “Method for isotope separation of thallium,” US Patent 7,323,651 B2, 2008

P. Zhu, D. Li, P. Hu, A. Schell, P. Shi, C. R. Haas, N. Wu, and K. Du, “High efficiency 165 W near-diffractionlimited <TEX>$Nd:YVO_4$</TEX> slab oscillator pumped at 880 nm,” Opt. Lett. vol. 33, pp. 1930-1932, 2008
[CrossRef]

T. M. Jeong, C. M. Kim , D. K. Ko, and J. M. Lee, “Reconstruction of Wavefront Aberration of 100-TW Ti:sapphire Laser Pulse Using Phase Retrieval Method,” J. Opt. Soc. Korea, vol. 12, pp. 186-191, 2008

2007 (2)

T. M. Jeong, C. W. Lee, D. K. Ko , J. M. Lee, and H. S. Kim, “Analysis of a Laser Resonator from the Measurement of Thermal Aberrations in a Laser-Diode Side-Pumped Nd:YAG Laser with a Wavefront Sensor,” J. Korean Phys. Soc. vol. 51, pp. 78-83, 2007

R. Bhushan, K. Tsubakimoto, H. Yoshida, H. Fujita, and M. Nakatsuka, “Simultaneous compensation of birefringence and thermal lensing effect in a high average power Nd:YAG amplifier,” CLEO/Pacific Rim 2007, Technical Digest WP-11, pp. 557-558

2001 (2)

H. J. Moon, S. M. Lee, H. S. Kim, D. K. Ko, B. H. Cha, J. H. Yi, and J. M. Lee, “Operation Characteristics of Diode-Pumped, Bifocusing Compensated Two-Rod Nd:YAG Lasers with Diffusive Reflectors,” J. Korean Phys. Soc. vol. 39, pp. 881-885, 2001

S. Palese, J. Harkenrider, W. Long, F. Chui, D. Hoffmaster, W. Burt, H. Injeyan, G. Conway, G. Truong, and F. Tapos, “High Brightness, End-Pumped, Conduction Cooled Nd:YAG Zig-Zag Slab Laser Architecture,” Advanced Solid State Lasers, C. Marshall, ed., vol. 50 of OSA Trends in Optics and Photonics (Optical Society of America, 2001), pp. 41–46

1997 (1)

J. R. Park, J. Y. Lee, H. S. Kim, K. Y. Um, and H. J. Kong, “Characteristics of a Birefringence Compensation Scheme in Nd3+:YAG Rods Using a Polarization Rotator and Imaging Optics,” Opt. Rev. vol. 4, pp. 170-175, 1997
[CrossRef]

1987 (1)

J. Richards, “Birefringence compensation in polarization coupled lasers,” Appl. Opt. vol. 26, pp. 2514-2517, 1987

1978 (1)

J. T. Hunt, J. A. Glaze, W. W. Simmons, and P. A. Renard, “Suppression of self-focusing through low-pass spatial filtering and relay imaging,” Appl. Opt. vol. 17, pp. 2053-2057, 1978
[CrossRef]

1971 (1)

W. C. Scott and M. de Wit, “Birefringence compensation and TEM00 mode enhancement in a Nd:YAG laser,” Appl. Phys. Lett. vol. 18, pp. 3-4, 1971
[CrossRef]

1970 (1)

W. Koechner and D. K. Rice, “Effect of Birefringence on the Performance of Linearly Polarized YAG:Nd Lasers,” IEEE J. Quantum Elec., vol. 6, pp. 557-566, 1970
[CrossRef]

Advanced Solid State Lasers (1)

S. Palese, J. Harkenrider, W. Long, F. Chui, D. Hoffmaster, W. Burt, H. Injeyan, G. Conway, G. Truong, and F. Tapos, “High Brightness, End-Pumped, Conduction Cooled Nd:YAG Zig-Zag Slab Laser Architecture,” Advanced Solid State Lasers, C. Marshall, ed., vol. 50 of OSA Trends in Optics and Photonics (Optical Society of America, 2001), pp. 41–46

Appl. Opt (1)

J. Richards, “Birefringence compensation in polarization coupled lasers,” Appl. Opt. vol. 26, pp. 2514-2517, 1987

Appl. Phys. Lett. (1)

W. C. Scott and M. de Wit, “Birefringence compensation and TEM00 mode enhancement in a Nd:YAG laser,” Appl. Phys. Lett. vol. 18, pp. 3-4, 1971
[CrossRef]

Applied Optics (1)

J. T. Hunt, J. A. Glaze, W. W. Simmons, and P. A. Renard, “Suppression of self-focusing through low-pass spatial filtering and relay imaging,” Appl. Opt. vol. 17, pp. 2053-2057, 1978
[CrossRef]

J. Korean Phys. Soc. (2)

T. M. Jeong, C. W. Lee, D. K. Ko , J. M. Lee, and H. S. Kim, “Analysis of a Laser Resonator from the Measurement of Thermal Aberrations in a Laser-Diode Side-Pumped Nd:YAG Laser with a Wavefront Sensor,” J. Korean Phys. Soc. vol. 51, pp. 78-83, 2007

H. J. Moon, S. M. Lee, H. S. Kim, D. K. Ko, B. H. Cha, J. H. Yi, and J. M. Lee, “Operation Characteristics of Diode-Pumped, Bifocusing Compensated Two-Rod Nd:YAG Lasers with Diffusive Reflectors,” J. Korean Phys. Soc. vol. 39, pp. 881-885, 2001

Journal of the Optical Society of Korea (1)

T. M. Jeong, C. M. Kim , D. K. Ko, and J. M. Lee, “Reconstruction of Wavefront Aberration of 100-TW Ti:sapphire Laser Pulse Using Phase Retrieval Method,” J. Opt. Soc. Korea, vol. 12, pp. 186-191, 2008

Optical Review (1)

J. R. Park, J. Y. Lee, H. S. Kim, K. Y. Um, and H. J. Kong, “Characteristics of a Birefringence Compensation Scheme in Nd3+:YAG Rods Using a Polarization Rotator and Imaging Optics,” Opt. Rev. vol. 4, pp. 170-175, 1997
[CrossRef]

Optics Letters (1)

P. Zhu, D. Li, P. Hu, A. Schell, P. Shi, C. R. Haas, N. Wu, and K. Du, “High efficiency 165 W near-diffractionlimited <TEX>$Nd:YVO_4$</TEX> slab oscillator pumped at 880 nm,” Opt. Lett. vol. 33, pp. 1930-1932, 2008
[CrossRef]

Quantum Electronics, IEEE Journal of (1)

W. Koechner and D. K. Rice, “Effect of Birefringence on the Performance of Linearly Polarized YAG:Nd Lasers,” IEEE J. Quantum Elec., vol. 6, pp. 557-566, 1970
[CrossRef]

Other (2)

D. Y. Jeong, K. H. Ko, G. Lim, and C. J. Kim, “Method for isotope separation of thallium,” US Patent 7,323,651 B2, 2008

R. Bhushan, K. Tsubakimoto, H. Yoshida, H. Fujita, and M. Nakatsuka, “Simultaneous compensation of birefringence and thermal lensing effect in a high average power Nd:YAG amplifier,” CLEO/Pacific Rim 2007, Technical Digest WP-11, pp. 557-558

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