Femtosecond Laser Micromachining - Photonic and Microfluidic Devices in Transparent Materials
Femtosecond Laser Micromachining - Photonic and Microfluidic Devices in Transparent Materials
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飞秒激光微加工 - 透明材料中的光子和微流体器件
DOI：
10.1007/978-3-642-23366-1_5
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Thomson R
中科院分区：
文献类型：
--
作者：
Thomson R
光波导的折射率分布或横截面是其最具决定性的特性。它直接决定了波导所支持的横模的数目和这些横模的性质。因此，如果要优化波导器或波导器的性能，对波导器横截面的适当控制是必不可少的。本章介绍了波导截面如何影响导模的特性，为什么从器件工程的角度控制波导截面是重要的，以及已经开发的各种实验技术来控制超快激光内切波导的截面。
The refractive index profile, or cross-section, of an optical waveguide is its most defining property. It directly determines the number of transverse modes supported by the waveguide and the properties of these modes. Proper control of the waveguide cross-section is therefore essential if the performance of the waveguide, or waveguide device, is to be optimised. This chapter describes how the waveguide cross-section affects the properties of the guided modes, why it is important to control the waveguide cross-section from a device engineering point of view and the various experimental techniques that have been developed to control the cross-section of ultrafast laser inscribed waveguides.