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Proceedings Paper

Optical technique for reducing excess noise and quantum noise in a heterodyne interferometer
Author(s): Hui-Kang Teng
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Paper Abstract

A simple heterodyne interferometer associates with phase to amplitude conversion and amplitude sensitive technique is proposed. The excess noise and the quantum noise introduced by the autocorrelations between sensing beam and local oscillator beam are reduced at suitable phase bias. Meanwhile, the differential phase arises from target displacement is detected by optical differential and optical additive operations. The amplitude and phase quadrature are also achieved simultaneously in proposed interferometer.

Paper Details

Date Published: 29 August 2009
PDF: 8 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73820P (29 August 2009); doi: 10.1117/12.832359
Show Author Affiliations
Hui-Kang Teng, Nan-Kai Univ.of Technology (Taiwan)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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