Ultra-long-period grating-based multi-wavelength ultrafast fiber laser [Invited]

作     者：Bo Guo Xinyu Guo Lige Tang Wenlei Yang Qiumei Chen Zhongyao Ren 郭波;郭心宇;唐李格;杨文蕾;尘秋美;任忠要

作者机构：Key Laboratory of In-fiber Integrated OpticsMinistry of EducationHarbin Engineering UniversityHarbin 150001China 

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

年 卷 期：2021年第19卷第7期

页      面：48-55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 Natural Science Foundation of Heilongjiang Province (No.JJ2019LH1509) National Natural Science Foundation of China (NSFC)(Nos.11704086 and61875043) Fundamental Research Funds for the Central Universities (No.3072020CF2519) 111 Project of Harbin Engineering University (No.B13015) 

主　　题：ultra-long-period grating fiber laser ultrafast laser multi-wavelength 

摘      要：We propose and demonstrate the cascaded multi-wavelength mode-locked erbium-doped fiber laser(EDFL) based on ultralong-period gratings(ULPGs) for the first time, to the best of our *** found that the ULPG can be used as both a mode-locker for pulse shaping and a comb filter for multi-wavelength generation *** the dual-function of ULPG, three-, four-, five-, six-, and seven-wavelength mode-locked pulses are obtained in EDFL, seven of which are the largest number of wavelengths up to *** the four-wavelength soliton pulses, their pulse width is about 7.8 *** maximum average output power and slope efficiency of these pulses are 8.4 m W and 2.03%, *** the conventional pulses, hybrid soliton pulses composed of a four-wavelength pulse and single soliton are also ***, the effect of cavity dispersion on the multi-wavelength mode-locked pulses is also *** findings indicate that apart from common sensing and filtering, the ULPG may also possess attractive nonlinear pulse-shaping property for ultrafast photonics application.