Low-crosstalk 2 x 2 thermo-optic switch with silicon wire waveguides

We demonstrate a low-crosstalk 2 x 2 thermo-optic switch with silicon wire waveguides. The device is based on a 2 x 2 array of Mach-Zehnder interferometer (MZI) switches. Lowest crosstalk levels of -50 dB and -30 dB are obtained for 'bar' and 'cross' switching states, respectivel...

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Bibliographic Details
Published in:Optics express 2010-04, Vol.18 (9), p.9071
Main Authors: Shoji, Yuya, Kintaka, Kenji, Suda, Satoshi, Kawashima, Hitoshi, Hasama, Toshifumi, Ishikawa, Hiroshi
Format: Article
Language:English
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Summary:We demonstrate a low-crosstalk 2 x 2 thermo-optic switch with silicon wire waveguides. The device is based on a 2 x 2 array of Mach-Zehnder interferometer (MZI) switches. Lowest crosstalk levels of -50 dB and -30 dB are obtained for 'bar' and 'cross' switching states, respectively. An intersection in the switch is important for low-crosstalk operation. The power consumption of one MZI element switch is 40 mW and the total power consumption of the device is at most 160 mW.
ISSN:1094-4087
DOI:10.1364/OE.18.009071