Flat-top arrayed waveguide grating using a tapered multimode interferometer

被引：2

作者：

An, Junming ^{[1
]}

Wu, Yuanda

Wang, Hongjie

Li, Jianguang

Xing, Bo

Hu, Xiongwei

机构：

[1] Inner Mongolian Univ, Dept Phys, Hohhot 010021, Peoples R China

[2] Chinese Acad Sci, Inst Semicond, R&D Ctr Optoelect, Beijing 100083, Peoples R China

来源：

OPTICAL ENGINEERING | 2006年 / 45卷 / 09期

基金：

中国国家自然科学基金;

关键词：

optical planar waveguides; phased arrays; wavelength division multiplexing; flat-top; PASSBAND;

D O I：

10.1117/1.2353150

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A 40-channel 0.8-nm-spaced flat-top silica-based arrayed waveguide grating (AWG) with a tapered multimode interferometer (MMI) at the end of its input waveguide has been experimentally demonstrated for the first time. By adding the MMI, the 1-dB and 3-dB bandwidths are increased to 0.45 and 0.62 nm, respectively. The insertion loss (IS) of the device ranges from 3.8 to 6.8 dB. The IS uniformity is better than 3.0 dB. The crosstalk is better than -25 dB. Compared to the AWG with a rectangular MMI, the AWG with a tapered MMI shows better IS, crosstalk, and ripple. (c) 2006 Society of Photo-Optical Instrumentation Engineers.

引用

页数：4

共 7 条

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