Crosstalk reduction in arrayed-waveguide grating multiplexer/demultiplexer using cascade connection

被引：10

作者：

Kamei, S ^{[1
]}

Kaneko, A ^{[1
]}

Ishii, M ^{[1
]}

Shibata, T ^{[1
]}

Inoue, Y ^{[1
]}

Hibino, Y ^{[1
]}

机构：

[1] NTT Corp, Photon Labs, Kanagawa 2430198, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2005年 / 23卷 / 05期

关键词：

crosstalk; demultiplexing; optical components; optical fiber communication; planar waveguides; waveguide filters; wavelength-division multiplexing (WDM);

D O I：

10.1109/JLT.2005.846909

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a cascade-connected arrayed waveguide grating (AWG) as a solution to the problem of crosstalk accumulation in a large-scale AWG multiplexer/demultiplexer (MUX/DEMUX) and demonstrates a 64-channel cascaded AWG module with a very low background crosstalk of less than -80 dB and a total crosstalk of about -34 dB. In this paper, the authors densely integrate 64 additional compactly designed crosstalk-suppressing AWGs whose bandwidths were carefully optimized and directly attach them to a conventional 64-channel AWG. Consequently, in addition to a very low crosstalk, a low insertion loss and a compact size without passband shape distortion are achieved with this module. Based on the performance of the cascaded AWG module, it is then estimated that it is possible to realize a 1000-channel AWG MUX/DEMUX that is free from the problem of crosstalk accumulation.

引用

页码：1929 / 1938

页数：10

共 21 条

[1] Mach-Zehnder interferometer and arrayed-waveguide-grating integrated multi/demultiplexer with photosensitive wavelength tuning [J].