Phase-Inserted Fiber Gratings and Their Applications to Optical Filtering, Optical Signal Processing, and Optical Sensing: Review

Phase-inserted fiber gratings (PI-FGs) refer to those gratings where there exist a number of the phase-shifts (spatial spacing) among different sections (or local periods) of the gratings themselves. All the PI-FGs developed to date can mainly be divided into three categories: phase-shifted gratings...

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Bibliographic Details
Main Authors: Chengliang Zhu, Lei Wang, Hongpu Li
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/9/4/271