论文部分内容阅读
报道了一种L波段的高功率亚皮秒掺铒光纤激光器。在全光纤环形腔内熔接2个偏振控制器(PC)和偏振相关的光隔离器(ISO),基于非线性偏振旋转锁模原理实现了全光纤结构锁模激光脉冲输出。输出激光的中心波长为1603nm,脉冲重复频率为37.8 MHz,单脉冲能量为4nJ,平均输出激光功率为152mW。对此全光纤锁模激光器进行合理的色散控制,可得到脉冲宽度为370fs的锁模激光输出。实验中使用高掺杂浓度的掺铒光纤,有效减少了其使用长度,提高了抽运转换效率,实现了结构简单紧凑、性能稳定可靠的L波段亚皮秒光纤激光器。
A L-band high power sub-picosecond erbium-doped fiber laser is reported. Two polarization controllers (PC) and polarization-dependent optical isolators (ISO) are fused in the all-fiber annular cavity, and all-fiber mode-locked laser pulse output is realized based on the non-linear polarization rotation mode-locking principle. The central wavelength of the output laser is 1603 nm, the pulse repetition frequency is 37.8 MHz, the single pulse energy is 4 nJ and the average output laser power is 152 mW. This all-fiber mode-locked laser with reasonable dispersion control, can be modeled pulse width of 370fs laser output. The experiment uses erbium doped fiber with high doping concentration, which effectively reduces the length of the erbium doped fiber, improves the pumping conversion efficiency, and realizes the L-band sub-picosecond fiber laser with simple and compact structure and stable performance.