21 June 2018 Time- and frequency-domain verification of laser self-mixing interference with two-external-cavity feedback
Bingkun Gao, Yuwei Liu, Chunlei Jiang, Peng Chen
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Abstract
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.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2018/$25.00 © 2018 SPIE
Bingkun Gao, Yuwei Liu, Chunlei Jiang, and Peng Chen "Time- and frequency-domain verification of laser self-mixing interference with two-external-cavity feedback," Optical Engineering 57(6), 066114 (21 June 2018). https://doi.org/10.1117/1.OE.57.6.066114
Received: 15 February 2018; Accepted: 30 May 2018; Published: 21 June 2018
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Laser resonators

Feedback signals

Semiconductor lasers

Sensors

Fourier transforms

Ferroelectric materials

Fiber lasers

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