A C2H2 frequency-stabilized erbium-doped fiber laser and its application to coherent communication

被引：3
|
作者：
Yoshida, Masato [1 ]
Kasai, Keisuke [1 ]
Hongo, Jumpei [1 ]
Nakazawa, Masataka [1 ]
机构：
[1] Tohoku Univ, Res Inst Elect Commun, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
来源：
FIBER LASERS IV: TECHNOLOGY, SYSTEMS, AND APPLICATIONS | 2007年 / 6453卷
关键词：
erbium-doped fiber laser; frequency-stabilization; acetylene; QAM; coherent communication;
D O I：
10.1117/12.714489
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe a frequency-stabilized, polarization-maintained erbium fiber ring laser and its application to coherent communication. The laser frequency is stabilized by using an acetylene (C2H2) absorption line and the frequency stability reached as high as 1.3 x 10(-11) for an integration time of 1 s. The output beam of this frequency-stabilized laser has no frequency modulation with a narrow linewidth of 4 kHz. Using this coherent laser and an optical phase-locked-loop (OPLL) technique, we succeeded in a 20 Msymbol/s coherent quadrature amplitude modulation (QAM) transmission over 525 km.
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页数：9
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