Inscription of narrow-band fibre Bragg gratings with 264 nm femtosecond pulses

被引：3
|
作者：
Kelleher, Patrick [1 ]
Nikogosyan, David N. [1 ]
机构：
[1] Natl Univ Ireland Univ Coll Cork, Dept Phys, Cork, Ireland
来源：
OPTICAL FIBER TECHNOLOGY | 2010年 / 16卷 / 04期
关键词：
Bragg gratings; Scanning mask technique; PHASE MASK; LONG; FABRICATION;
D O I：
10.1016/j.yofte.2010.04.002
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We fabricated narrow-band fibre Bragg gratings (FBGs) in photosensitive Ge/B codoped fibre by a scanning mask technique with high-intensity (30-60 GW/cm(2)) 264 nm 220 fs laser pulses. Comparing with recently reported inscription using 800 nm pulses and same scanning approach, our gratings demonstrate a smaller linewidth down to 0.2 nm and much higher grating strength at shorter length. In addition, the obtained results demonstrate the absence of significant off-band losses. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：212 / 216
页数：5
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