NDLI: Recent topics in engineering for solid-state peak-power lasers in repetitive operation

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Recent topics in engineering for solid-state peak-power lasers in repetitive operation

Content Provider	Semantic Scholar
Author	Nakatsuka, Masahiro Yoshida, Hidetsugu Fujimoto, Yasushi Fujioka, Kana Fujita, Hisanori
Copyright Year	2003
Abstract	Solid-state lasers have been developed for peak-power operation in the terawatt to petawatt regions by using chirped pulse amplification (CPA) and optical parametric (OPCPA) technology. Also thermal distortion-free, 10-nsec repetitive peak-power lasers have been developed. Broadband amplification of a solid-state laser is a key issue for the pre-amplification stage of CPA system, and the OPA scheme gives a high gain with a very low pre-pulse level while keeping a 5-nm bandwidth. On the other hand, nonlinear optical technology using stimulated Brillouin scattering (SBS) is promising as a way to compensate for thermal difficulties caused in strongly pumped laser materials. SBS is well known for the phase conjugation mirror (PCM) used for an average power output with a high reflectivity of over 95 %. A liquid fluorocarbon with a special treatment can be used to achieve a 10-ns duration, 50-Hz repetition laser delivering 0.4-GW peak power, with a 200-W average power. A liquid flow system in an SBS cell can be used to realize PCM behavior up to the kW range. The last theme in this paper is a short review of new ceramic materials for a scalable solid-state laser. In past ten years, Japanese researchers have investigated new transparent ceramic YAG materials for industrial application. The ceramics have many advantages for an average power laser, such as high doping rate, co-doping potential, large-size fabrication, and composite structure.
Starting Page	607
Ending Page	615
Page Count	9
File Format	PDF HTM / HTML
Volume Number	43
Alternate Webpage(s)	http://lib.fibopt.ru/Articles/PAPER/JKorPhS_2003_43_607.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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