Open AccessChromatic-dispersion measurement by modulation phase-shift method using a Kerr phase-interrogator
Author(s) -
Curtis L. Baker,
Yang Lü,
Xiaoyi Bao
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.022314
Subject(s) - optics , dispersion (optics) , dispersion shifted fiber , cross phase modulation , zero dispersion wavelength , modal dispersion , materials science , kerr effect , ultrashort pulse , phase modulation , optical fiber , signal (programming language) , phase (matter) , self phase modulation , fiber optic sensor , physics , laser , nonlinear optics , phase noise , computer science , nonlinear system , quantum mechanics , programming language
We present a novel approach for the measurement of chromatic-dispersion in long optical fibers using a modulation phase-shift method based on a Kerr phase-interrogator. This approach utilizes a Kerr phase-interrogator to measure the phase variation of a sinusoidal optical signal induced by traveling in a fiber under test as the laser carrier wavelength and the sinusoidal signal frequency are varied. Chromatic-dispersion measurement for several fibers including a standard single-mode silica fiber and a dispersion-shifted fiber is experimentally demonstrated. The ultrafast response of the Kerr phase-interrogator opens the way for real-time monitoring of chromatic-dispersion in kilometers-long optical fibers.