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Proceedings Paper

Reflectometer with linear frequency modulated subcarrier
Author(s): Lev R. Aybatov
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Paper Abstract

Construction principles are considered for reflectometers with linear frequency modulated (LFM) subcarrier intended for monitoring of fiber-optic communication links. Analysis of energy characteristics for square-law photodetection regime of optical signals was fulfilled. The analysis of photoresistor operation under radio-heterodyning regime was fulfilled and practical schemes for reflectometry with linear frequency modulated subcarrier has been elaborated to realize advantages of continuous-wave sounding methods at infrared spectral band which is especially important for monitoring of fiber-optic communication links. The processes of backscattering signals accumulation were investigated for reflectometers with LFM subcarrier. Energy characteristics of reflectometers with LFM subcarrier were researched and large range of these systems (86.1 km) was confirmed for sounding beam power 1 mW.

Paper Details

Date Published: 3 April 2009
PDF: 10 pages
Proc. SPIE 7374, Optical Technologies for Telecommunications 2008, 73740L (3 April 2009); doi: 10.1117/12.829040
Show Author Affiliations
Lev R. Aybatov, Kazan State Technical Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 7374:
Optical Technologies for Telecommunications 2008
Vladimir A. Andreev; Vladimir A. Burdin; Oleg G. Morozov; Albert H. Sultanov, Editor(s)

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