Investigation of ellipticity and pump power in a passively mode-locked fiber laser using the nonlinear polarization rotation technique

作     者：H. Ahmad S. I. Ooi M. Z. A. Razak S. R. Azzuhri A. A. Jasim K. Thambiratnam M. F. Ismail M. A. Ismail 

作者机构：photonics Research Centre University of Malaya Kuala Lumpur Malaysia Institute of Microengineering and Nanoelectronics Research Complex University Kebangsaan Malaysia 43600 Bangi Selangor Malaysia 

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

年 卷 期：2017年第15卷第5期

页      面：45-49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：funding for this research under the grants RU 010-2016 GA 010-2014 (ULUNG) LRGS (2015) NGOD/ UM/KPT 

主　　题：mode Investigation of ellipticity and pump power in a passively mode-locked fiber laser using the nonlinear polarization rotation tec 

摘      要：An elliptical initial polarization state is essential for generating mode-locked pulses using the nonlinear polarization rotation technique. In this work, the relationship between the ellipticity ranges capable of maintaining mode-locked operation against different pump power levels is investigated. An increasing pump power, in conjunction with minor adjustments to the polarization controller＇s quarter waveplate, results in a wider ellipticity range that can accommodate mode-locked operation. Other parameters such as noise, pulsewidth, and average output power are also observed to vary as the ellipticity changes.