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System for precise dissemination of frequency standard via optical fiber
Author(s) -
Amemiya Masaki,
Imae Michito,
Fujii Yasuhisa,
Suzuyama Tomonari,
Naito Takashi,
Urakawa Junji,
Ebihara Kiyokazu,
Terunuma Nobuhiro
Publication year - 2012
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.10372
Subject(s) - transmitter , compensation (psychology) , transmission (telecommunications) , optical fiber , optical amplifier , transmission system , hydrogen maser , amplifier , computer science , stability (learning theory) , multi mode optical fiber , electronic engineering , fiber , optics , telecommunications , physics , maser , materials science , engineering , psychology , laser , channel (broadcasting) , bandwidth (computing) , machine learning , psychoanalysis , composite material
A precise frequency dissemination system using optical fiber is studied. The purpose of the system is to transmit a frequency standard with little deterioration to many distant users. It is composed of a phase compensation transmitter, bidirectional optical amplifiers, optical amplified distributor, and receiver. The goal of the system is to achieve stable transmission of hydrogen maser‐class signals. For short‐term stability, the required optical received power to realize an Allan deviation of 1 × 10 –13 (average time of 1 s) is shown. For long‐term stability, a new compensation method using a third wavelength transmission is effective to suppress phase fluctuation induced by temperature changes in the fiber. Experimental results show a stability of 8 × 10 –17 at 10 5 s in a fiber link of 160 km in all with one bidirectional amplifier. © 2012 Wiley Periodicals, Inc. Electron Comm Jpn, 95(3): 45–54, 2012; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/ecj.10372