摘要
A novel four-wavelength all-fiber laser based on fiber Bragg gratings is presented.The four wavelengths are 1555.8,1556.6,1557.4 and 1558.2 nm,respectively.Each output laser is<0.3 nm in line-width and>1 mW in power.The suppression ratio between adjacent wavelengths is>30 dB.The laser was applied in a wavelength division multiplexing(WDM)system and the 100 km transmission of 1.2 Gb/s nonreturn-to-zero code,1.2 Gb/s return-to-zero code,2.5 GHz analogue signal and 5 GHz analogue signal was realized with it.
基金
Supported by the National‘863’high technology project(863-307-15-5(11)).
