Direct core-selective inscription of Bragg grating structures in seven-core optical fibers by femtosecond laser pulses

被引：2
|
作者：
Wolf, Alexey A. [1 ,2 ]
Dostovalov, Alexandr, V [1 ,2 ]
Bronnikov, Kirill A. [1 ,2 ]
Babin, Sergey A. [1 ,2 ]
机构：
[1] Inst Automat & Electrometry SB RAS, 1 Acad Koptyug Ave, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, 1 Pirogov St, Novosibirsk 630090, Russia
来源：
MICRO-STRUCTURED AND SPECIALTY OPTICAL FIBRES VI | 2019年 / 11029卷
基金：
俄罗斯科学基金会;
关键词：
fiber Bragg grating; multicore fiber; femtosecond laser micromachining; refractive index change; SINGLE;
D O I：
10.1117/12.2522248
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present the results on fiber Bragg gratings inscription with femtosecond laser pulses in a Fibercore SM-7C1500(6.1/125) 7-core single-mode optical fiber. By focusing femtosecond pulses into the volume of the fiber and by controlling the transverse spatial position of the pulse absorption region we selectively modify the individual fiber cores of the fiber and at the same time specify geometry of the each grating. We show that different longitudinal profiles of coupling coefficient can be realized for the FBG, including uniform, chirped and apodized ones.
引用
收藏
页数：7
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