中国激光
中國激光
중국격광
CHINESE JOURNAL OF LASERS
2009年
3期
668-671
,共4页
鲁韶华%许鸥%冯素春%简水生
魯韶華%許鷗%馮素春%簡水生
로소화%허구%풍소춘%간수생
fiber optics%fiber lflser:erbium-doped%chirped moire grating
A simple and cost-effective wavelength-switchable fiber ring laser based on a chirped moire fiber grating (CMFG)and an erbium-doped fiber amplifier (EDFA) is proposed,and stable wavelength Iasing oscillations at room temperature iS experimentally demonstrated.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 measured optical signal-to-noise ratio reaches the highest value of 50 dB and the power fluctuation of each channel output iS less than 0.5 dB within an hour.The output laser power of different channels is almost identical(difference of less than 1 dB) within the tunable range.Methods to optimize the laser performance are also discussed and the superiority of the CMFG iS experimentally demonstrated.
