Multimode interference photonic switches (MIPS)

被引：75

作者：

Nagai, S ^{[1
]}

Morishima, G ^{[1
]}

Inayoshi, H ^{[1
]}

Utaka, K ^{[1
]}

机构：

[1] Waseda Univ, Sch Sci & Engn, Tokyo 1698555, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2002年 / 20卷 / 04期

关键词：

crosstalk; InGaAsP; multimode interference (MMI); photonic switch; semiconductor waveguide device; wide-angle finite difference beam propagation method (FD-BPM);

D O I：

10.1109/50.996588

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：

The switching characteristics of multimode interference photonic switches (MIPS) are analyzed by wide-angle finite difference beam propagation method (FD-BPM). As a result, it is found that the MIPS with a multimode interference (MMI) length of 599 4m can switch the output light polarization insensitively with a crosstalk of less than -20 dB for a wavelength range of 70 nm. These analyses show that the MIPS can also have a 3-dB coupler function. Experimentally, an InGaAsP/InP 1 x 2 MIPS with a thicker InP cladding layer was fabricated and exhibited switching operation with crosstalks of -8 dB and -10 dB at 0 and 20 mA current injections, respectively. For a 2 x 2 MIPS with a thinner InP cladding layer, better switching characteristics with a crosstalk of - 13 dB and an extinction ratio of 17 dB were realized.

引用

页码：675 / 681

页数：7

共 18 条

[1]

Asada M., 1985, Transactions of the Institute of Electronics and Communication Engineers of Japan, Section E (English), VE68, P518

[2] OPTICAL BANDWIDTH AND FABRICATION TOLERANCES OF MULTIMODE INTERFERENCE COUPLERS [J].