IEICE TRANSACTIONS on Electronics
Effect of Laser Phase-Induced Intensity Noise on Multiplexed Fiber-Optic Sensor System Using Optical Loop with Frequency Shifter
Summary :
We have proposed a multiplexed fiber-optic sensor system using an optical loop with a frequency shifter. The measured output power spectrum of the system has shown that the multiprexed signals superimpose upon a noise pedestal which is like a series of hill peaks. In this paper, the output power spectrum is theoretically analyzed from the output intensity autocor-relation function. It displays that the noise pedestal originates from the laser phase-induced intensity noise. The noise level depends on the coherence time of the laser source. The positions of peaks are decided by the working frequency of the frequency shifter in the optical loop. The sensitivity of the system are related to the bandwidth B, the coherence time Tc, the sensor number n to be multiplexed, the loop loss α, and the fiber coupler parameters. Properly choosing these parameters is beneficial to improve the sensitivity of system.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E79-C No.3 pp.437-443
- Publication Date
- 1996/03/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Quantum Electronics
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Xisao-qun ZHOU, Koichi IIYAMA, Ken-ichi HAYASHI, "Effect of Laser Phase-Induced Intensity Noise on Multiplexed Fiber-Optic Sensor System Using Optical Loop with Frequency Shifter" in IEICE TRANSACTIONS on Electronics,
vol. E79-C, no. 3, pp. 437-443, March 1996, doi: .
Abstract: We have proposed a multiplexed fiber-optic sensor system using an optical loop with a frequency shifter. The measured output power spectrum of the system has shown that the multiprexed signals superimpose upon a noise pedestal which is like a series of hill peaks. In this paper, the output power spectrum is theoretically analyzed from the output intensity autocor-relation function. It displays that the noise pedestal originates from the laser phase-induced intensity noise. The noise level depends on the coherence time of the laser source. The positions of peaks are decided by the working frequency of the frequency shifter in the optical loop. The sensitivity of the system are related to the bandwidth B, the coherence time Tc, the sensor number n to be multiplexed, the loop loss α, and the fiber coupler parameters. Properly choosing these parameters is beneficial to improve the sensitivity of system.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e79-c_3_437/_p
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@ARTICLE{e79-c_3_437,
author={Xisao-qun ZHOU, Koichi IIYAMA, Ken-ichi HAYASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Effect of Laser Phase-Induced Intensity Noise on Multiplexed Fiber-Optic Sensor System Using Optical Loop with Frequency Shifter},
year={1996},
volume={E79-C},
number={3},
pages={437-443},
abstract={We have proposed a multiplexed fiber-optic sensor system using an optical loop with a frequency shifter. The measured output power spectrum of the system has shown that the multiprexed signals superimpose upon a noise pedestal which is like a series of hill peaks. In this paper, the output power spectrum is theoretically analyzed from the output intensity autocor-relation function. It displays that the noise pedestal originates from the laser phase-induced intensity noise. The noise level depends on the coherence time of the laser source. The positions of peaks are decided by the working frequency of the frequency shifter in the optical loop. The sensitivity of the system are related to the bandwidth B, the coherence time Tc, the sensor number n to be multiplexed, the loop loss α, and the fiber coupler parameters. Properly choosing these parameters is beneficial to improve the sensitivity of system.},
keywords={},
doi={},
ISSN={},
month={March},}
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TY - JOUR
TI - Effect of Laser Phase-Induced Intensity Noise on Multiplexed Fiber-Optic Sensor System Using Optical Loop with Frequency Shifter
T2 - IEICE TRANSACTIONS on Electronics
SP - 437
EP - 443
AU - Xisao-qun ZHOU
AU - Koichi IIYAMA
AU - Ken-ichi HAYASHI
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E79-C
IS - 3
JA - IEICE TRANSACTIONS on Electronics
Y1 - March 1996
AB - We have proposed a multiplexed fiber-optic sensor system using an optical loop with a frequency shifter. The measured output power spectrum of the system has shown that the multiprexed signals superimpose upon a noise pedestal which is like a series of hill peaks. In this paper, the output power spectrum is theoretically analyzed from the output intensity autocor-relation function. It displays that the noise pedestal originates from the laser phase-induced intensity noise. The noise level depends on the coherence time of the laser source. The positions of peaks are decided by the working frequency of the frequency shifter in the optical loop. The sensitivity of the system are related to the bandwidth B, the coherence time Tc, the sensor number n to be multiplexed, the loop loss α, and the fiber coupler parameters. Properly choosing these parameters is beneficial to improve the sensitivity of system.
ER -
English
