Long Jin-Gan, Gao Yu-Xin, Lin Wei, Wu Jia-Wen, Lin Xu-Bin, Hong Wei-Yi, Cui Hu, Luo Zhi-Chao, Xu Wen-Cheng, Luo Ai-Ping
Opt Lett. 2021 Feb 1;46(3):588-591. doi: 10.1364/OL.412086.
We report a switchable and spacing tunable dual-wavelength spatiotemporal mode-locked (STML) laser based on the multimode interference filtering effect in an all-fiber linear cavity. The dual-wavelength STML operations combined with different pulse patterns are achieved. By adjusting the polarization controllers, the dual-wavelength STML pulses can be switched to single wavelength operation, which is tunable up to 35 nm under certain pump powers. Moreover, the dual-wavelength spacing can also be tuned from 8 nm to 22 nm. The obtained results contribute to understanding and exploring the spatiotemporal characteristics operating in the multi-wavelength regime of STML fiber lasers. All-fiber STML lasers with lasing wavelength tunability and flexibility may have applications in the fields of optical communications and optical measurements.
我们报道了一种基于全光纤线性腔中多模干涉滤波效应的可切换且间距可调的双波长时空锁模（STML）激光器。实现了结合不同脉冲模式的双波长STML运转。通过调整偏振控制器，双波长STML脉冲可切换至单波长运转，在特定泵浦功率下其调谐范围可达35 nm。此外，双波长间距也可从8 nm调谐至22 nm。所获结果有助于理解和探索STML光纤激光器多波长区域中的时空特性。具有激光波长可调谐性和灵活性的全光纤STML激光器可能在光通信和光学测量领域有应用。
