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

被引：29

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

页码：4603 / 4606

页数：4

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