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http://dx.doi.org/10.3807/KJOP.2002.13.1.070

Study of frequency chirping of pulse amplified laser beam by using heterodyne method  

김진태 (조선대학교 공과대학 광기술공학과)
Publication Information
Korean Journal of Optics and Photonics / v.13, no.1, 2002 , pp. 70-72 More about this Journal
Abstract
Amplified pulsed laser beam with narrow linewidth was generated from CW laser beam with narrow linewidth by using frequency doubled Nd:YAG laser beam and Bethune cell. The degree of the frequency chirping of the amplified pulse laser was measured by using the heterodyne method and obtained by calculating instantaneous phase change from heterodyne beating signals. The frequency chirping of amplified pulsed laser beam from CW laser beam with sub-MHz linewidth by 10 ns pulse was 80 MHz so that pulsed laser beam with very narrow linewidth was obtained.
Keywords
laser applications; optical sciences(LO.050; OS.010);
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