Journal of the Optical Society of Korea

  • 제16권1호
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  • Pages.53-56
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  • 2012
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Development and Characterization of a 400-W Slab-type Nd:YAG Gain Module

  • Cha, Yong-Ho (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Lee, Sungman (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Lim, Gwon (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Baik, Sung-Hoon (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Kwon, Sung-Ok (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Cha, Byung-Heon (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Lee, Jung-Hwan (Agency for Defense Development) ;
  • Kang, Eung-Cheol (Agency for Defense Development)
  • 투고 : 2011.12.15
  • 심사 : 2011.12.28
  • 발행 : 2012.03.25
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초록

We have developed a slab-type Nd:YAG gain module based on the techniques of conduction cooling and end pumping. The Nd:YAG slab is end-capped on both ends by undoped pure YAG and is pumped through the end-caps by stacked arrays of laser diode bars. The slab's surfaces of total internal reflection are in contact on both sides with microchannel cooling blocks which are cooled by water circulation. The power oscillator based on the gain module generates more than 400 W at 1-kW pumping with a slope efficiency of 55%. The small-signal gain of the gain module is 10 in a single zig-zag pass, and the amplified beam shows a near diffraction-limited beam quality.

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참고문헌

  1. W. Koechner and D. K. Rice, "Effect of birefringence on the performance of linearly polarized YAG:Nd lasers," IEEE J. Quantum Electron. 6, 557-566 (1970). https://doi.org/10.1109/JQE.1970.1076529
  2. W. C. Scott and M. de Wit, "Birefringence compensation and $TEM_{00}$ mode enhancement in a Nd:YAG laser," Appl. Phys. Lett. 18, 3-4 (1971). https://doi.org/10.1063/1.1653466
  3. J. Richards, "Birefringence compensation in polarization coupled lasers," Appl. Opt. 26, 2514-2517 (1987). https://doi.org/10.1364/AO.26.002514
  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. 39, 881-885 (2001).
  5. J. R. Park, J. Y. Lee, H. S. Kim, K. Y. Um, and H. J. Kong, "Characteristics of a birefringence compensation scheme in $Nd^{3+}$:YAG rods using a polarization rotator and imaging optics," Opt. Rev. 4, 170-175 (1997). https://doi.org/10.1007/BF02931674
  6. 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," in Proc. CLEO/Pacific Rim 2007 (Seoul, Korea), Technical Digest WP-11, pp. 557-558.
  7. Y. H. Cha, M. Y. Yang, K. H. Ko, G. Lim, J. M. Han, H. M. Park, T. S. Kim, S. Roh, and D. Y. Jeong, "270-W 15-kHz MOPA system based on side-pumped rod-type Nd:YAG gain modules," J. Opt. Soc. Korea 12, 298-392 (2008). https://doi.org/10.3807/JOSK.2008.12.4.298
  8. P. Zhu, D. Li, P. Hu, A. Schell, P. Shi, C. R. Haas, N. Wu, and K. Du, "High efficiency 165 W near-diffractionlimited Nd:YVO4 slab oscillator pumped at 880 nm," Opt. Lett. 33, 1930-1932 (2008). https://doi.org/10.1364/OL.33.001930
  9. A. K. Sridharan, S. Saraf, S. Sinha, and R. L. Byer, "Zigzag slabs for solid-state laser amplifiers: batch fabrication and parasitic oscillation suppression," Appl. Opt. 45, 3340-3351 (2006). https://doi.org/10.1364/AO.45.003340
  10. 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, USA, 2001), pp. 41-46.
  11. N. P. Barnes and B. M. Walsh, "Quantum efficiency measurements of Nd:YAG, Yb:YAG, and Tm:YAG," Advanced Solid-State Lasers (Quebec, Canada, 2002), OSA TOPS vol. 68, pp. 284-287.

피인용 문헌

  1. Wavefront improvement in an end-pumped high-power Nd:YAG zigzag slab laser vol.25, pp.16, 2017, https://doi.org/10.1364/OE.25.019309
  2. Interface and material engineering for zigzag slab lasers vol.7, pp.1, 2017, https://doi.org/10.1038/s41598-017-16968-0