Inscription of high contrast volume Bragg gratings in fused silica with femtosecond laser pulses

被引：0
|
作者：
Christian Voigtländer
Daniel Richter
Jens Thomas
Andreas Tünnermann
Stefan Nolte
机构：
[1] Friedrich-Schiller-University Jena,Institute of Applied Physics
[2] Fraunhofer Institute for Applied Optics and Precision Engineering,undefined
来源：
Applied Physics A | 2011年 / 102卷
关键词：
Fuse Silica; Probe Beam; Femtosecond Laser Pulse; Diffraction Grating; Phase Mask;
D O I：
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中图分类号：
学科分类号：
摘要：
We present volume Bragg gratings (VBGs) with a period of 1.075 μm inscribed in fused silica using a femtosecond laser and a phase mask. The femtosecond-inscribed VBGs can be used as reflecting elements with reflectivities of about 80% for a 1-mm-long grating. Due to the non-sinusoidal refractive-index shape, higher order Bragg resonances up to the 7th reflection order could be measured. Therefore, the Bragg gratings also reflect light in the visible-wavelength range.
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页码：35 / 38
页数：3
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