A highly precise fiber delay fluctuation measurement with a wide range

被引：1

作者：

Fu, Tiantian ^{[1
]}

Wang, Xiaocheng ^{[1
]}

Liu, Zhangweiyi ^{[1
]}

Deng, Nan ^{[1
]}

Xie, Weilin ^{[2
]}

Dong, Yi ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

[2] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China

来源：

OPTOELECTRONIC DEVICES AND OPTICAL SIGNAL PROCESSING | 2017年 / 10617卷

基金：

中国国家自然科学基金;

关键词：

Fiber measurements; analog optical signal processing; metrological instrumentation; microwave photonics; LARGE DYNAMIC-RANGE; RESOLUTION;

D O I：

10.1117/12.2295338

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We propose a time delay fluctuation measurement method with high precision and wide range. The round-trip time delay fluctuation of a 40 km optical fiber link from the phase of a transmitted 20.02 GHz signal is transferred into the one of an intermediate frequency by using dual heterodyne phase error transfer. It allows a precise measurement of the time delay fluctuation by measuring the phase of the RF signal. Frequency division of the intermediate frequency is applied to realize the wide range of delay fluctuation measurement. The resolution of the measurement can be reached at 27 fs and the range can be 6.25 ns.

引用

页数：4

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