Time- and frequency-domain verification of laser self-mixing interference with two-external-cavity feedback

被引：3
|
作者：
Gao, Bingkun [1 ]
Liu, Yuwei [1 ]
Jiang, Chunlei [1 ]
Chen, Peng [1 ]
机构：
[1] Northeast Petr Univ, Coll Elect & Informat Engn, Daqing, Peoples R China
来源：
OPTICAL ENGINEERING | 2018年 / 57卷 / 06期
关键词：
the structure of two-external-cavity feedback; self-mixing interference; time and frequency domain; VIBRATION MEASUREMENT; INTERFEROMETRY; MODULATION; DIODE;
D O I：
10.1117/1.OE.57.6.066114
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The laser self-mixing interference (SMI) with two-external-cavity feedback used with a semiconductor laser is proposed and validated in the time and frequency domain. Simulation and experimental results show that mixed SMI signal is the sum of two independent SMI signals under weak feedback. This structure can measure two vibrations simultaneously using only a single detector and a single laser. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：6
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