Coherent optical frequency transfer over 50-km physical distance using a 120-km-long installed telecom fiber network

被引：84
作者：
Musha, Mitsuru [1 ]
Hong, Feng-Lei [2 ,3 ]
Nakagawa, Ken'ichi [1 ]
Ueda, Ken-ichi [1 ]
机构：
[1] Univ Electrocommun, Inst Laser Sci, Chofu, Tokyo 1828585, Japan
[2] Natl Inst Adv Ind Sci & Technol, NMIJ, Tsukuba, Ibaraki 3058563, Japan
[3] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 21期
关键词：
D O I：
10.1364/OE.16.016459
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Optical frequency at 1542 nm was coherently transferred over a 120-km-long installed telecom fiber network between two cities (Tsukuba and Tokyo) in Japan separated by more than 50 km. The phase noise induced by the fiber length fluctuations was actively reduced by using a fiber stretcher and an acousto-optic modulator. The fractional frequency instability of the one-way transmitted light was reduced down to less than 8.0 x 10(-16) at an averaging time of 1s, which is limited by the theoretical limit deduced from the length and the intrinsic noise of the fiber. (c) 2008 Optical Society of America
引用
收藏
页码：16459 / 16466
页数：8
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