Femtosecond inscription of phase-shifted gratings by overlaid fiber Bragg gratings

被引：17
|
作者：
Shamir, Avishay [1 ]
Ishaaya, Amiel A. [1 ]
机构：
[1] Ben Gurion Univ Negev, Dept Elect & Comp Engn, POB 653, IL-84105 Beer Sheva, Israel
来源：
OPTICS LETTERS | 2016年 / 41卷 / 09期
关键词：
LASER; WRITTEN;
D O I：
10.1364/OL.41.002017
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Two slightly shifted gratings are inscribed, one over the other, in an SMF fiber with a femtosecond laser and a phase mask. The transmission spectrum of the complex structure is similar to that of a phase-shifted grating; yet, the fabrication process is fast and simple compared to standard methods. High-quality semi-phase- shifted gratings with -24 dB transmission loss and <100 pm transmission bandwidth are presented. Their application as highly narrow micro-resonators and notch filters seems feasible. (C) 2016 Optical Society of America
引用
收藏
页码：2017 / 2020
页数：4
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