High-gain amplification for femtosecond optical vortex with mode-control regenerative cavity

作     者：SHUIQIN ZHENG ZHENKUAN CHEN QINGGANG LIN YI CAI XIAOWEI LU YANXIA GAO SHIXIANG XU DIANYUAN FAN 

作者机构：Shenzhen Key Laboratory of Micro-Nano Photonic Information TechnologyCollege of Physics and Optoelectronics EngineeringShenzhen UniversityShenzhen 518060China Photonics LaboratoryDivision of ComputerElectricaland Mathematical Sciences and EngineeringKing Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia SZU-NUS Collaborative Innovation Center for Optoelectronic Science&TechnologyKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceShenzhen UniversityShenzhen 518060China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2020年第8卷第8期

页      面：1375-1380页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080902[工学-电路与系统] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(61490710,61705132,61775142) Shenzhen Basic Research Project on Subject Layout(JCYJ20170412105812811) Shenzhen Basic Research Projects(JCYJ20190808115601653,JCYJ20190808164007485) 

主　　题：amplifier optical pump 

摘      要：Ultra-intense femtosecond vortex pulses can provide an opportunity to investigate the new phenomena with orbital angular momentum(OAM)involved in extreme *** paper reports a high gain optical vortex amplifier for intense femtosecond vortex pulses *** regeneration amplifiers can offer high gain for Gaussian mode pulses but cannot amplify optical vortex pulses while maintaining the phase singularity because of mode ***,we present a regeneration amplifier with a ring-shaped *** controlling the radius of the pump,the system can realize the motivation of the Laguerre–Gaussian[LG0,1(−1)]mode and the suppression of the Gaussian *** seeds,the amplifier has a donut-shaped output containing two opposite OAM states simultaneously,as our prediction by *** seeded by a pulse of a topologic charge of 1 or−1,the system will output an amplified LG0,1(−1)mode pulse with the same topologic charge as the *** our knowledge,this amplifier can offer the highest gain as 1.45×106 for optical vortex ***,we obtain a 1.8 mJ,51 fs compressed optical vortex seeded from a 2 nJ optical vortex.