Review of Helical Long-Period Fiber Gratings
In this paper, comprehensive remarks are given that focus on the main fabrications and wide applications of helical long-period fiber gratings (HLPGs). Firstly, the techniques of fabricating HLPGs by CO<sub>2</sub> laser, hydrogen–oxygen flame heating, and arc discharge are summarized. F...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-05-01
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Series: | Photonics |
Subjects: | |
Online Access: | https://www.mdpi.com/2304-6732/8/6/193 |