锁模脉冲波长连续可调谐光纤激光器
Guangzi Xuebao/Acta Photonica Sinica（2009）
Abstract
利用在腔内加入可调谐光纤光栅滤波器使"8"字形腔掺Yb3+光纤激光器在锁模状态下实现波长连续可调谐.实验中,在保证锁模状态稳定的情况下,通过调节可调谐光纤光栅滤波器,使激光器输出锁模脉冲的中心波长在1 047 nm～1 055 nm范围内连续调谐,重复频率稳定维持在4.9 MHz.在中心波长1 053 nm处,测得锁模脉冲输出平均功率为8.02 mW,光谱带宽1 nm,脉冲宽度为259.3 ps.这种"8"字形腔被动锁模光纤激光器在锁模状态下对波长连续可调谐,并可长时间稳定工作.
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Key words
Fiber lasers,Figure-of-eight laser cavity,Manual tunable fiber Bragg grating,Mode-locked pulses,Wavelength continuous tuning,Yb3+-doped fiber
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