Generation of cylindrical vector beams in a mode-locked fiber laser using a mode-selective coupler

作     者：蔡宇 汪杰 张娇娇 万洪丹 张祖兴 张琳 

作者机构：Advanced Photonic Technology Lab Nanjing University of Posts and Telecommunications Aston Institute of Photonic Technologies Aston University 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2018年第16卷第1期

页      面：11-15页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Science Foundation of Jiangsu Province(Nos.BK20161521 and BK20150858) the Nanjing University of Posts and Telecommunications(NUPTSF)(Nos.NY214059,NY214002,and NY215002) the Distinguished Professor Project of Jiangsu(No.RK002STP14001) the Six Talent Peaks Project in Jiangsu Province(No.2015-XCL-023) the Postgraduate Research&Practice Innovation Program of Jiangsu Province(Nos.SJCX17_0234 and KYCX17_0744) 

主　　题：LP CVB TM Generation of cylindrical vector beams in a mode-locked fiber laser using a mode-selective coupler 

摘      要：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 twomode 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.