Analysis of a loss-compensated recirculating delayed self-heterodyne interferometer for laser linewidth measurement

被引:46
|
作者
Han, M [1 ]
Wang, A [1 ]
机构
[1] Virginia Polytech Inst & State Univ, Ctr Photon Technol, Blacksburg, VA 24061 USA
来源
APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 81卷 / 01期
关键词
D O I
10.1007/s00340-005-1871-9
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A loss-compensated recirculating delayed self-heterodyne interferometer (LC-RDSHI) for laser linewidth measurement is theoretically analyzed. An analytical result for the output spectrum of the LC-RDSHI is obtained. It is found that the spectrum from a LC-RDSHI is equivalent to a spectrum from a conventional delayed self-heterodyne interferometer with equivalent time delay and frequency shift, but modified by a periodical function, which could significantly influence the laser linewidth measurement. The parameters of a LC-RDSHI must be optimized to permit an accurate and direct measurement of laser linewidth from the output spectrum.
引用
收藏
页码:53 / 58
页数:6
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