Chinese Optics Letters, 2018, 16 (1): 010602, Published Online: Jul. 16, 2018
Generation of cylindrical vector beams in a mode-locked fiber laser using a mode-selective coupler Download: 1124次
Abstract
We experimentally obtain cylindrical vector beams (CVBs) in a passively mode-locked fiber laser based on nonlinear polarization rotation. A mode-selective coupler composed of both a single-mode fiber (SMF) and a two-mode fiber (TMF) is incorporated into the cavity to act as a mode converter from LP01 mode to LP11 mode with broad spectral bandwidth. CVBs in different mode-locked states including single-pulse, multi-pulse, and bound pulse are obtained, for the first time to our best knowledge. The ultrafast CVBs with different operation states have potential applications in many fields such as laser beam machining, nanoparticle manipulation, and so on.
Yu Cai, Jie Wang, Jiaojiao Zhang, Hongdan Wan, Zuxing Zhang, Lin Zhang. Generation of cylindrical vector beams in a mode-locked fiber laser using a mode-selective coupler[J]. Chinese Optics Letters, 2018, 16(1): 010602.