Optoelectronics Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland.
Fiber Optics Research Center, Russian Academy of Sciences, 38 Vavilov Street, 119333 Moscow, Russia.
Sci Rep. 2016 Apr 21;6:24876. doi: 10.1038/srep24876.
We demonstrate the first 1.7 μm bismuth-doped fiber laser generating ultrashort pulses via passive mode-locking. Pulse operation has been achieved for both anomalous and normal dispersion of the laser cavity owing to broadband characteristics of carbon nanotube saturable absorber. The laser delivered 1.65 ps pulses in net anomalous dispersion regime. In normal dispersion regime, the laser delivered 14 ps pulses which could be compressed to 1.2 ps using external fiber compressor.
我们通过被动锁模展示了首例 1.7μm 掺铋光纤激光器产生的超短脉冲。由于碳纳米管可饱和吸收体的宽带特性，激光腔的反常和正常色散都实现了脉冲操作。在净反常色散状态下，激光器输出 1.65ps 的脉冲。在正常色散状态下，激光器输出 14ps 的脉冲，使用外部光纤压缩器可将其压缩至 1.2ps。
