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http://dx.doi.org/10.3807/KJOP.2002.13.6.548

Characteristics of the Nd:YAG laser with stimulated brillouin scattering phase conjugate mirror  

이동원 (한국과학기술원 물리학과)
이성구 (한국과학기술원 물리학과)
박승현 (한국과학기술원 물리학과)
공홍진 (한국과학기술원 물리학과)
Publication Information
Korean Journal of Optics and Photonics / v.13, no.6, 2002 , pp. 548-553 More about this Journal
Abstract
We have investigated the output characteristics of a Nd:YAG oscillator with a Stimulated Brillouin Scattering phase conjugation mirror (SBS-PCM). FC-75 is used as an SBS gain medium and Cr:YAG (T=50%) as a Q-switcher. The SBS-PCM consists of an SBS-cell and a simple plano-convex focusing lens system. For the case of not using a Q-switcher, an SBS-cell doesn't work as a phase conjugation mirror. For the case of using a Q-switcher, the energy characteristics remains nearly the same whether using the SBS-cell or not using it. The pulse width is reduced from 50 ns to 40 ns by an SBS-PCM. When the SBS-cell is used with a Q- switcher, the SBS-cell works very well as a phase conjugation mirror and its beam-profile is improved dramatically. And in order to explain the progression of beam-profile, we propose a simple model based on the nonlinear reflectivity of the SBS-PCM, whose reflectivity is dependent on the pumping intensity at the focal plane.
Keywords
stimulated brillouin scattering; solid-state laser; phase conjugation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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