A λ/4-shifted Distributed Feedback Semiconductor Fiber Ring Laser with an OSNR of 85 dB and a Linewidth of 7 kHz

Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Suzuki, Akihito; Quynhanh, Ho Thi; Yoshida, Masato; Nakazawa, Masataka (Research Institute of Electrical Communication, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai-shi 980-8577, Japan)

We newly propose a λ/4-shifted DFB semiconductor fiber ring laser incorporating an ultranarrow band FBG in the cavity. Large performance improvements with an OSNR of 85 dB and a linewidth of 7 kHz are obtained.