Long-period fibre grating fabrication with femtosecond pulse radiation at different wavelengths

被引：24

作者：

Kryukov, PG

Larionov, YV

Rybaltovskii, AA

Zagorul'ko, KA

Dragomir, A

Nikogosyan, DN

Ruth, AA

机构：

[1] Russian Acad Sci, Inst Gen Phys, Fiber Opt Res Ctr, Moscow 119991, Russia

[2] Natl Univ Ireland Univ Coll Cork, Cork, Ireland

来源：

MICROELECTRONIC ENGINEERING | 2003年 / 69卷 / 2-4期

关键词：

fibre grating; femtosecond laser; excimer laser; non-linear absorption; photosensitivity;

D O I：

10.1016/S0167-9317(03)00304-6

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 [电气工程]; 0809 [电子科学与技术];

摘要：

The fabrication of long-period fibre gratings (LPFGs) in optical fibres by femtosecond pulses at different wavelengths is reported. Several types of fibres were used and it was found that LPFGs with strong attenuation peaks (more than 20 dB) can be induced in hydrogen-loaded germanosilicate fibres using the second harmonic of a femtosecond Ti:sapphire laser without the use of an amplifier (400 nm, 70 fs and 2.5 nJ) and amplified, frequency-quadrupled pulses from a Nd:glass laser (264 nm, 220 fs and 0.4 mJ). Low 'out-of-band' losses and results of isochronal annealing for the fabricated gratings suggest that the photoinduced refractive index change is not accompanied by damage to irradiated fibres. (C) 2003 Elsevier B.V. All rights reserved.

引用

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页码：248 / 255

页数：8

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