IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
High-speed high-reflectance-resolution reflectometry by synthesis of optical coherence function
Zuyuan HeToshihiko TomizawaKazuo Hotate
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2006 Volume 3 Issue 7 Pages 122-128

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Abstract

A novel high-speed optical reflectometry with high-reflectance-resolution is demonstrated by synthesis of optical coherence function for diagnosis of optical fiber assembly modules. In this new scheme, the optical frequency of a laser source is modulated doubly: one in sinusoidal wave to synthesize a coherence peak scanning along the fiber under test for distributed reflection/scattering measurement, the other in linear sweep to make the wavelength domain averaging optically for high reflectance resolution. Experimental results show that a reflection-distribution profile with reflectance-resolution better than 0.1dB can be obtained within 1 minute with this method.

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© 2006 by The Institute of Electronics, Information and Communication Engineers
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