Improved self-mixing model reflecting speckle

Speckle is one of the main obstacles to application of self-mixing interferometer. Self-mixing model reflecting speckle is of great theoretical and practical significance in self-mixing interferometry. In the paper, we suggested an improved model which can clearly explain the effect of speckle on se...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2024-03, Vol.130 (3), Article 44
Main Authors: Ho, Kwang-Myong, Choe, Song-Ah, Kim, Chol-Hyon, Yun, Tu-Hen, Ri, Chol-Man, Ju, Won-Song
Format: Article
Language:English
Subjects:
Coefficient of variation
Engineering
Interferometers
Lasers
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
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Summary:Speckle is one of the main obstacles to application of self-mixing interferometer. Self-mixing model reflecting speckle is of great theoretical and practical significance in self-mixing interferometry. In the paper, we suggested an improved model which can clearly explain the effect of speckle on self-mixing signal, and draw some important results such as a mechanism of feedback coefficient intensity variation induced by speckle and effects of the surface orientation on the signal. The proposed model and method will provide an effective tool for practical application of self-mixing interferometer.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-024-08179-z