A Self-Mixing Infterference Structure with Pre-Feedback Used for Measuring Displacement

[in Chinese]; [in Chinese]; [in Chinese]

Journals >Acta Optica Sinica >Volume 22 >Issue 3 >Page 308 > Article

Acta Optica Sinica
Vol. 22, Issue 3, 308 (2002)

A Self-Mixing Infterference Structure with Pre-Feedback Used for Measuring Displacement

[in Chinese]^1、2、*, [in Chinese]¹, and [in Chinese]²

Author Affiliations

¹[in Chinese]

²[in Chinese]

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[in Chinese], [in Chinese], [in Chinese]. A Self-Mixing Infterference Structure with Pre-Feedback Used for Measuring Displacement[J]. Acta Optica Sinica, 2002, 22(3): 308 Copy Citation Text

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Abstract

A new self mixing interference structure including the pre feedback is proposed and its model is established. It is confirmed by computer simulating and experiment that the pre feedback one can extend the measuring range and increase the signal to noise ratio and obtain the sawtooth interference signal from a rough surface.

Keywords

displacement measurement pre-feedback self-mixing interference semiconductor laser

[in Chinese], [in Chinese], [in Chinese]. A Self-Mixing Infterference Structure with Pre-Feedback Used for Measuring Displacement[J]. Acta Optica Sinica, 2002, 22(3): 308

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