Abstract
We demonstrate here the inscription of chirped and tilted fiber Bragg gratings (CTFBGs), to the best of our knowledge, for the first time in hydrogen-loaded large-mode-area (LMA) double-cladding fibers using UV pulses and linearly chirped phase masks. High reflectivity wideband adjustable band-rejection filters are achieved in fibers like LMA-GDF-10/130-M and PS-GDF-20/400-M, with a wavelength coverage of more than 10 nm and suppression ratio around 20 dB. The spectrum and temperature properties are investigated. Experimental results indicate that CTFBGs could be used in double-cladding fiber systems with a smoothly varying attenuation spectrum and a low insertion loss, which is significant for further power scaling in a high-power fiber system.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Binyu Rao, Xiaofan Zhao, Hongye Li, Xin Tian, Meng Wang, and Zefeng Wang
Opt. Express 29(7) 11277-11292 (2021)
Meng Wang, Yujing Zhang, Zefeng Wang, Junjie Sun, Jianqiu Cao, Jinyong Leng, Xijia Gu, and Xiaojun Xu
Opt. Express 25(2) 1529-1534 (2017)
Hao Li, Meng Wang, Baiyi Wu, Xinyu Ye, Chenhui Gao, Binyu Rao, Xin Tian, Xiaoming Xi, Zilun Chen, Zefeng Wang, and Jinbao Chen
Opt. Express 31(8) 13393-13401 (2023)