Long Period Fiber Grating Fabrication by Two-Step Infrared Femtosecond Fiber Laser Exposure

We develop a two-step infrared (IR) femtosecond fiber laser exposure technique to flexibly fabricate long period fiber gratings (LPFGs) with a high peak band-rejection efficiency of 35.4 dB, insertion loss of 4.36 dB, and 3 dB bandwidth of 13 nm. First, we etch periodic corrugations via IR femtoseco...

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Bibliographic Details
Main Authors: Cong Zhang, Li Cheng, Songnian Fu, Ming Tang, Deming Liu
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/7938315/