Fibre-Bragg-grating writing in single-mode optical fibres by UV femtosecond pulses

被引:4
|
作者
Zagorul'ko, KA
Kryukov, PG
Dianov, EM
Dragomir, A
Nikogosyan, DN
机构
[1] Russian Acad Sci, Fiber Opt Res Ctr, AM Prokhorov Gen Phys Inst, Moscow 119991, Russia
[2] Natl Univ Ireland Univ Coll Cork, Dept Phys, Cork, Ireland
关键词
fibre gratings; femtosecond pulses; photo-induced refractive index;
D O I
10.1070/QE2003v033n08ABEH002486
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
Fibre-Bragg-grating writing in single-mode optical fibres by the phase-mask method using 220-fs, 264-nm UV pulses of intensity 31-77 GW cm(-2) is reported for the first time. The achieved degree of modulation of the photoinduced refractive index was 1.9 x 10(-3) in an H-2-loaded SMF-28 telecommunication fibre and 1.1 x 10(-3) in a H-2-free Nufern GF1 fibre. The dependence of the induced refractive index on the intensity for the same irradiation fluences in the case of the H-2-loaded SMF-28 fibre shows that the refractive index is induced due to nonlinear absorption.
引用
收藏
页码:728 / 730
页数:3
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