High 90% efficiency Bragg gratings formed in fused silica by femtosecond Gauss-Bessel laser beams

被引：85

作者：

Mikutis, Mindaugas ^{[1
,2
]}

Kudrius, Tadas ^{[1
,2
]}

Slekys, Gintas ^{[1
]}

Paipulas, Domas ^{[2
]}

Juodkazis, Saulius ^{[3
,4
]}

机构：

[1] Altechna RD, LT-08412 Vilnius, Lithuania

[2] Vilnius State Univ, Laser Res Ctr, LT-10223 Vilnius, Lithuania

[3] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia

[4] Swinburne Univ Technol, Fac Engn & Ind Sci, ANFF, Hawthorn, Vic 3122, Australia

来源：

OPTICAL MATERIALS EXPRESS | 2013年 / 3卷 / 11期

基金：

澳大利亚研究理事会;

关键词：

THERMO-REFRACTIVE GLASS; PULSES; MICROFABRICATION; IRRADIATION;

D O I：

10.1364/OME.3.001862

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Direct laser write of volume Bragg gratings with diffraction efficiency (absolute) similar to 90% is demonstrated using Gauss-Bessel laser beams in fused silica glass. Axial multiplexing of similar to 90 mu m long segments of modified optical material was demonstrated and thick Bragg gratings of aspect ratio depth/period approximate to 234 were achieved with period d = 1.5 mu m. Typical fabrication scanning speeds were up to 50 mm/s for gratings with cross sections up to five millimeters made within 1 h time. Potential applications of high efficiency Bragg gratings in a low nonlinearity medium such as silica are discussed. (C) 2013 Optical Society of America

引用

页码：1862 / 1871

页数：10

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