Fabrication of a long-period grating in a fibre by second-harmonic radiation from a femtosecond Ti:sapphire laser

被引：19

作者：

Zagorul'ko, KA

Kryukov, PG

Larionov, YV

Rybaltovskii, AA

Dianov, EM

Vorob'ev, NS

Smirnov, AV

Shchelev, MY

Prokhorov, AM

机构：

[1] Russian Acad Sci, Inst Gen Phys, Fiber Opt Res Ctr, Moscow 117756, Russia

[2] Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia

来源：

QUANTUM ELECTRONICS | 2001年 / 31卷 / 11期

关键词：

intrafibre refractive-index gratings; femtosecond pulses; photosensitivity;

D O I：

10.1070/QE2001v031n11ABEH002091

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：

Long-period gratings are fabricated in an optical fibre for the first time by second-harmonic radiation from a femtosecond Ti:sapphire laser without the use of an amplifier. The photosensitivity of different fibres exposed to femtosecond pulses is studied. The estimates of the photosensitivity and the thermal properties of long-period gratings showed that the mechanism of the change in the refractive index induced by the 400-nm second-harmonic radiation differs from the corresponding mechanisms upon exposure to UV radiation from excimer lasers or irradiation by amplified 800-nm femtosecond pulses.

引用

页码：999 / 1002

页数：4

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