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Title: Six-channel adaptive fibre-optic interferometer

Abstract

We have proposed and analysed a scheme for the multiplexing of orthogonal dynamic holograms in photorefractive crystals which ensures almost zero cross talk between the holographic channels upon phase demodulation. A six-channel adaptive fibre-optic interferometer was built, and the detection limit for small phase fluctuations in the channels of the interferometer was determined to be 2.1 Multiplication-Sign 10{sup -8} rad W{sup 1/2} Hz{sup -1/2}. The channel multiplexing capacity of the interferometer was estimated. The formation of 70 channels such that their optical fields completely overlap in the crystal reduces the relative detection limit in the working channel by just 10 %. We found conditions under which the maximum cross talk between the channels was within the intrinsic noise level in the channels (-47 dB).

Authors:
; ; ;
Publication Date:
OSTI Identifier:
22043953
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 42; Journal Issue: 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAPACITY; CRYSTALS; FLUCTUATIONS; HOLOGRAPHY; INTERFEROMETERS; NOISE; OPTICAL FIBERS; SENSITIVITY; WAVEGUIDES

Citation Formats

Romashko, R V, Bezruk, M N, Kamshilin, A A, and Kulchin, Yurii N. Six-channel adaptive fibre-optic interferometer. United States: N. p., 2012. Web. doi:10.1070/QE2012V042N06ABEH014732.
Romashko, R V, Bezruk, M N, Kamshilin, A A, & Kulchin, Yurii N. Six-channel adaptive fibre-optic interferometer. United States. doi:10.1070/QE2012V042N06ABEH014732.
Romashko, R V, Bezruk, M N, Kamshilin, A A, and Kulchin, Yurii N. Sat . "Six-channel adaptive fibre-optic interferometer". United States. doi:10.1070/QE2012V042N06ABEH014732.
@article{osti_22043953,
title = {Six-channel adaptive fibre-optic interferometer},
author = {Romashko, R V and Bezruk, M N and Kamshilin, A A and Kulchin, Yurii N},
abstractNote = {We have proposed and analysed a scheme for the multiplexing of orthogonal dynamic holograms in photorefractive crystals which ensures almost zero cross talk between the holographic channels upon phase demodulation. A six-channel adaptive fibre-optic interferometer was built, and the detection limit for small phase fluctuations in the channels of the interferometer was determined to be 2.1 Multiplication-Sign 10{sup -8} rad W{sup 1/2} Hz{sup -1/2}. The channel multiplexing capacity of the interferometer was estimated. The formation of 70 channels such that their optical fields completely overlap in the crystal reduces the relative detection limit in the working channel by just 10 %. We found conditions under which the maximum cross talk between the channels was within the intrinsic noise level in the channels (-47 dB).},
doi = {10.1070/QE2012V042N06ABEH014732},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 6,
volume = 42,
place = {United States},
year = {2012},
month = {6}
}