基于200GHz硅纳米线且带有优化光子晶体反射器的反射型阵列波导光栅（解）复用器的设计与制造

Design and fabrication of a 200 GHz Si-nanowire-based reflective arrayed-waveguide grating (de)multiplexer with optimized photonic crystal reflectors.

作者信息

Shi Yaocheng, Fu Xin, Dai Daoxin

机构信息

Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, 310058 Hangzhou, China.

出版信息

Appl Opt. 2010 Sep 10;49(26):4859-65. doi: 10.1364/AO.49.004859.

DOI:10.1364/AO.49.004859

PMID:20830173

Abstract

A compact Si-nanowire-based reflective arrayed-waveguide grating (AWG) for dense wavelength-division multiplexing is proposed. At the end of each waveguide in the array, there is an individual photonic crystal (PhC) reflector, which makes the AWG layout design very flexible. All the PhC reflectors are with the same design. With such a design, the total size of the AWG (de)multiplexer is reduced by more than a half. The reflection efficiency of the used PhC reflectors is enhanced by optimizing the taper between the arrayed waveguides and the PhC reflector. A 200 GHz AWG (de)multiplexer is designed and fabricated as an example. The total size is only about 193 μm × 168 μm.

摘要

提出了一种用于密集波分复用的基于紧凑型硅纳米线的反射阵列波导光栅（AWG）。在阵列中每个波导的末端，都有一个单独的光子晶体（PhC）反射器，这使得AWG的布局设计非常灵活。所有的PhC反射器都采用相同的设计。采用这种设计，AWG复用器/解复用器的总体尺寸减小了一半以上。通过优化阵列波导与PhC反射器之间的锥形结构，提高了所用PhC反射器的反射效率。以设计并制造一个200 GHz的AWG复用器/解复用器为例。其总体尺寸仅约为193μm×168μm。