Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor optical amplifier  

作　　者：鲁韶华 许鸥 冯素春 简水生 

机构地区：[1]Institute of Lightwave Technology,Key Lab of All Optical Network and Advanced Telecommunication Network of EMC,Beijing Jiaotong University

出　　处：《Chinese Optics Letters》2009年第6期469-471,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.60771008);the National "863" Program of China (No.2007AA01Z258);the Support Plan for New Century Excellent Talents (No.NCET-05-0091);the Science Fund of Beijing Jiaotong University (No.2007XM003)

摘　　要：A simple and cost-effective multi-wavelength fiber ring laser based on a chirped Moire fiber grating （CMFG） and a semiconductor optical amplifier （SOA） is proposed. Stable triple-wavelength lasing oscillations at room temperature are experimentally demonstrated. The measured optical signal-to-noise ratio （SNR） reaches the highest value of 50 dB and the power fluctuation of each wavelength is less than 0.2 dB within a 1-h period. To serve as a wavelength selective element, the CMFG possesses excellent comb-like filtering characteristics including stable wavelength interval and ultra-narrow passband, and its fabrication method is easy and flexible. The lasing oscillation shows a narrower bandwidth than SOA-based multi-wavelength fiber lasers utilizing some other kinds of wavelength selective components. Methods to optimize the laser performance are also discussed.A simple and cost-effective multi-wavelength fiber ring laser based on a chirped Moire fiber grating （CMFG） and a semiconductor optical amplifier （SOA） is proposed. Stable triple-wavelength lasing oscillations at room temperature are experimentally demonstrated. The measured optical signal-to-noise ratio （SNR） reaches the highest value of 50 dB and the power fluctuation of each wavelength is less than 0.2 dB within a 1-h period. To serve as a wavelength selective element, the CMFG possesses excellent comb-like filtering characteristics including stable wavelength interval and ultra-narrow passband, and its fabrication method is easy and flexible. The lasing oscillation shows a narrower bandwidth than SOA-based multi-wavelength fiber lasers utilizing some other kinds of wavelength selective components. Methods to optimize the laser performance are also discussed.

关 键 词：ring length CFBG Multi-wavelength fiber ring laser based on a chirped moir fiber grating and a semiconductor optical amplifier SOA 

分 类 号：TN248[电子电信—物理电子学] TN722