Deep subsurface waveguides with circular cross section produced by femtosecond laser writing

被引：39

作者：

Diez-Blanco, V. ^{[1
]}

Siegel, J. ^{[1
]}

Ferrer, A. ^{[1
]}

de la Cruz, A. Ruiz ^{[1
]}

Solis, J. ^{[1
]}

机构：

[1] CSIC, Inst Opt, Laser Proc Grp, E-28006 Madrid, Spain

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 05期

关键词：

SILICA GLASS; FUSED-SILICA; BULK GLASS; PULSES; MICROFABRICATION; PROPAGATION; FABRICATION; ABERRATION;

D O I：

10.1063/1.2761298

中图分类号：

O59 [应用物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

A combination of low numerical aperture focusing optics, in order to minimize spherical aberration, and beam shaping with a slit has been used to produce waveguides in fused silica by femtosecond laser writing. Waveguides with circular cross section and low losses are produced over a large depth window (> 7 mm) without changing any experimental parameter. Diffraction induces beam divergence along the axis perpendicular to the slit, leading to a shift of the focal plane. The focal intensity distribution can be predicted by a hybrid model combining Gaussian beam propagation with imaging of the slit into the material. (c) 2007 American Institute of Physics.

引用

页数：3

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