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All-fiber short-pulse vortex laser with adjustable pulse width
Laser Physics ( IF 1.2 ) Pub Date : 2020-04-01 , DOI: 10.1088/1555-6611/ab8641
Zhiming Zhang 1 , Wei Wei 1 , Guoqing Sun 1 , Xianglong Zeng 2 , Wande Fan 1 , Liqin Tang 1 , Yigang Li 1
Affiliation  

A laser with short pulse width and direct output of a vortex beam was reported herein. This laser was fabricated from a nonlinear loop mirror (NOLM) and a coupler composed of a single mode fiber and few-mode fiber fused together. The NOLM is responsible for generating pulses, and the coupler acts as a beam splitter and mode converter. Two stable vortex modes can be formed by adjusting the polarization controller, whose pulse widths are 1.098 ps and 542 fs, respectively.

中文翻译:

脉宽可调的全光纤短脉冲涡旋激光器

本文报道了一种具有短脉冲宽度和涡旋光束直接输出的激光器。该激光器由非线性环路镜 (NOLM) 和由融合在一起的单模光纤和少模光纤组成的耦合器制成。NOLM 负责产生脉冲,耦合器充当分束器和模式转换器。通过调整偏振控制器可以形成两种稳定的涡流模式,其脉冲宽度分别为1.098 ps和542 fs。
更新日期:2020-04-01
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