Self-calibrating hybrid wavelength, polarization, and time-multiplexed heterodyne interferometers for Angstrom precision measurements

Nabeel A. Riza; Muzammil A. Arain; Farzan N. Ghauri

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Self-calibrating hybrid wavelength, polarization, and time-multiplexed heterodyne interferometers for Angstrom precision measurements

机译：Self-calibrating hybrid wavelength, polarization, and time-multiplexed heterodyne interferometers for Angstrom precision measurements

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摘要

Propose here unique wavelength and hybrid wavelength-polarization and wavelength-polarization-time-multiplexed heterodyne optical interferometers using an internal self-referencing scheme enabling Angstrom level sensitivity optical path-length measurements. As a first step, a proof-of-concept wavelength multiplexed scanning heterodyne interferometer is built to test the surface quality of a test mirror, demonstrating +-100 A profile variations with a 0.9 A accuracy. The hybrid wavelength-polarization and wavelength-polarization-time-multiplexed interferometers can be used to form spectrally coded distributed sensors.

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来源
《Optical Engineering》 |2006年第12期|125603-1-125603-6-0|共6页
作者
Nabeel A. Riza; Muzammil A. Arain; Farzan N. Ghauri;
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作者单位

University of Central Florida Photonics Information Processing Laboratory 4000 Central Florida Boulevard Orlando, Florida 32816-2700;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
acousto-optic deflectors; heterodyne optical interferometers; optical sensors; scanning interferometers;

Self-calibrating hybrid wavelength, polarization, and time-multiplexed heterodyne interferometers for Angstrom precision measurements

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