Study of speckle pattern effect for self-mixing laser diodes in vertical-cavity surface-emitting lasers

Liang Lu; Ke Zhang; Jijun Dai; Jun Zhu; Shenglai Zhen; Benli Yu

doi:10.1117/1.3485755

1 September 2010 Study of speckle pattern effect for self-mixing laser diodes in vertical-cavity surface-emitting lasers

Liang Lu, Ke Zhang, Jijun Dai, Jun Zhu, Shenglai Zhen, Benli Yu

Author Affiliations +

Optical Engineering, Vol. 49, Issue 9, 094301 (September 2010). https://doi.org/10.1117/1.3485755

Abstract

We present a theoretical analysis and a comparison to experimental results on self-mixing interference. From the theoretical analysis and experiment, the error of the velocity measurement, which is caused by a speckle pattern, has been investigated and optimization of the laser diode velocity system by selecting suitable experiment parameters and proper signal processing methods has been reported. The actual measurement error is <3.1% over a wide velocity range (5.2-479 mm/s).

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Liang Lu, Ke Zhang, Jijun Dai, Jun Zhu, Shenglai Zhen, and Benli Yu "Study of speckle pattern effect for self-mixing laser diodes in vertical-cavity surface-emitting lasers," Optical Engineering 49(9), 094301 (1 September 2010). https://doi.org/10.1117/1.3485755

Published: 1 September 2010

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