Yatsu R, Taira K, Tsuchiya M
Opt Lett. 1999 Aug 15;24(16):1172-4. doi: 10.1364/ol.24.001172.
We report our investigations of a new and simpler femtosecond fiber-optic soliton compressor for chirp-compensated gain-switched diode-laser pulses and of pedestal suppression by a compound fiber loop mirror (CFLM) and nonlinear-optical loop mirrors (NOLM's), both of which are designed for sub-100-fs pulse generation of high quality. The soliton compressor, composed of a 21.1-m-long steplike dispersion profiled fiber, exhibited 44-fs pulses and a compression ratio of approximately 60. Pedestals of 100-fs soliton pulses were suppressed successfully (>20 dB) by the CFLM and the NOLM's. In particular, 63-fs pedestal-free sech(2) pulses were obtained by NOLM propagation.
我们报告了我们对一种新型且更简单的飞秒光纤孤子压缩器的研究，该压缩器用于啁啾补偿增益开关二极管激光脉冲，以及通过复合光纤环形镜（CFLM）和非线性光学环形镜（NOLM）进行的基座抑制，这两种器件均设计用于产生高质量的亚100飞秒脉冲。由一根21.1米长的阶梯状色散分布光纤组成的孤子压缩器，输出了44飞秒的脉冲，压缩比约为60。CFLM和NOLM成功抑制了100飞秒孤子脉冲的基座（>20分贝）。特别是，通过NOLM传输获得了63飞秒无基座的双曲正割平方脉冲。
