Chinese Optics Letters, 2009, 7 (6): 06469, Published Online: Jun. 8, 2009
Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor optical amplifier Download: 703次
光纤激光器 啁啾莫尔光栅 半导体光放大器 060.3510 Lasers, fiber 060.3735 Fiber Bragg gratings 140.4480 Optical amplifiers
Abstract
A simple and cost-effective multi-wavelength fiber ring laser based on a chirped Moiré 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.
Shaohua Lu, Ou Xu, Suchun Feng, Shuisheng Jian. Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor optical amplifier[J]. Chinese Optics Letters, 2009, 7(6): 06469.