Novelty Design in Gain Flattening Filter of ASE Source Based on Fat Ultra-Long Period Fiber Grating

作     者：Fereshteh Mohammadi NAFCHI Sharifeh SHAHI Mohammad Taha SHAFFAATIFAR Mohammad KANANI Hossein NOORMOHAMMADI 

作者机构：Department of Electrical Engineering Majlesi Branch Islamic Azad University Majlesi Isfahan Iran Dental Biophotonics and Laser Research Center (DBLRS) Khorasgan (Isfahan) Branch Islamic Azad UniversityArghavanieh Isfahan Iran Department of Computer Engineering Najafabad Branch Islamic Azad University Najafabad Isfahan Iran 

出 版 物：《Photonic Sensors》 (光子传感器（英文版）)

年 卷 期：2016年第6卷第3期

页      面：243-248页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Amplified spontaneous emission (ASE) source erbium-doped fiber amplifier (EDFA) gain flatteningfilter long-period fiber grating (LPFG) 

摘      要：A new type of gain flattening filter for amplified spontaneous emission （ASE） source based on erbium doped fiber （EDF） is proposed and demonstrated by fabricating and writing two series ultra-long period fiber grating （ULPFG） on single mode fiber （SMF-28）. The novelty method in this research is based on writing the two ULPFGs as fat gratings. The LPG is written by a simple and available arc-discharge method. The pump power based on single-pass backward pump configuration is around 100mW, and the average wavelength is near to 974nm. The gain flattening profile is obtained by 3.4 （±1.7）dB ripple in the wavelength range between 1524nm and 1565nm with 41-nm band width.