Phase noise characteristics for four-wave transmission in a long-haul interferometric fiber sensing system

被引：0
|
作者：
Chen, W. [1 ]
Meng, Z. [1 ]
Zhou, H. [1 ]
机构：
[1] Natl Univ Def Technol, Dept Opt Informat Sci & Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷
关键词：
four-wave mixing; phase noise; wavelength division multiplexing; interferometric fiber sensing; beat frequency; four-wave transmission; STIMULATED BRILLOUIN-SCATTERING; OPTICAL-FIBER;
D O I：
10.1117/12.968571
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
Phase noise characteristics for four-wave transmission in a long-haul interferometric fiber sensing system are investigated. It is found that the phase noise in the presence and absence of four-wave mixing (FWM) is almost the same, which indicates that the influence of FWM can be negligible. It is due to that the bandwidth of the photodetector used in the fiber sensing system is often narrower than the beat frequency between FWM induced light and signal light, leading the beat noise to be filtered. This noise characteristic is different from that in the fiber communication system and provides guidance for the practical application of the interferometric fiber sensing system.
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页数：4
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