Low loss and high extinction ratio strictly nonblocking 16 x 16 thermooptic matrix switch on 6-in wafer using silica-based planar lightwave circuit technology

被引：97

作者：

Goh, T ^{[1
]}

Yasu, M ^{[1
]}

Hattori, K ^{[1
]}

Himeno, A ^{[1
]}

Okuno, M ^{[1
]}

Ohmori, Y ^{[1
]}

机构：

[1] NTT, Photon Labs, Naka, Ibaraki 3191193, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2001年 / 19卷 / 03期

关键词：

Mach-Zehnder interferometer (MZI); matrix switches; optical cross connects; optical switches; phase-error; phase-trimming; planar lightwave circuits (PLCs); silica-based waveguides; thermooptic switches; waveguide switches;

D O I：

10.1109/50.918890

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：

We describe a silica-based 16 x 16 strictly nonblocking thermooptic matrix switch with a low loss and a high extinction ratio, This matrix switch, which employs a double Mach-Zehnder interferometer (MZI) switching unit and a matrix arrangement to reduce the total waveguide length, is fabricated with 0.75% refractive index difference waveguides on a 6-in silicon wafer using silica-based planar lightwave circuit (PLC) technology. We obtained an average insertion loss of 6.6 dB and an average extinction ratio of 53 dB in the worst polarization case. The operating wavelength bandwidth completely covers the gain band of practical erbium-doped fiber amplifiers (EDFAs). The total power consumption needed for operation is reduced to 17 W by employing a phase-trimming technique which eliminates the phase-error in the interferometer switching unit.

引用

页码：371 / 379

页数：9

共 27 条

[1] Optical path length trimming technique using thin film heaters for silica-based waveguides on Si [J].