Self-mixing thin-slice solid-state laser Doppler velocimetry with much less than one feedback photon per Doppler cycle

被引：27
作者：
Otsuka, Kenju [1 ]
机构：
[1] Tokai Univ, Dept Human & Informat Sci, Hiratsuka, Kanagawa 2591292, Japan
来源：
OPTICS LETTERS | 2015年 / 40卷 / 20期
关键词：
LINDP4O12; LASERS; FIBER LASER; DIODE; OPERATION; BEAMS;
D O I：
10.1364/OL.40.004603
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The drastic shortening of a photon lifetime as compared with normal TEM00 operations has been shown to be associated with the formation of annular mode operations in a thin-slice Nd:GdVO4 laser with tilted laser diode end pumping. The 15 dB enhancement of the signal-to-noise ratio, owing to the shortened photon lifetime, has been demonstrated in the self-mixing laser Doppler velocimetry experiment in comparison with the TEM00 operations, where the minimum intensity feedback rate from a target to the laser for successful measurements was estimated to be -123 dB, which corresponds to 0.007 photon per Doppler cycle. (C) 2015 Optical Society of America
引用
收藏
页码：4603 / 4606
页数：4
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