Dispersion-tuned multiwavelength actively mode-locked fiber laser using a hybrid gain medium

作者：Pan Shilong^*; Zhao Xiaofan; Yu Wenke; Lou Caiyun

来源：Optics and Laser Technology, 2008, 40(6): 854-857.

DOI：10.1016/j.optlastec.2007.11.007

• fiber laser
• mode-locked lasers
• multiwavelength

We demonstrate a multiwavelength 10 GHz pulse source using a dispersion-tuned actively mode-locked fiber ring laser incorporated with a semiconductor optical amplifier and an erbium-doped fiber amplifier. Simultaneous seven-wavelength operation of the laser is obtained. The side-mode suppression of all wavelengths is above 30 dB. Smooth wavelength tuning is achieved over more than 12 nm by changing the modulation frequency or the length of the optical delay line. Pulse characteristics are almost constant over the entire tuning span. Wavelength spacing can also be varied from 0.9 to 10 run by adjusting the dispersion of the cavity. These experimental observations agree well with theoretical analyses.

• 出版日期2008-9
• 单位清华大学