Open AccessLow-crosstalk 2 × 2 thermo-optic switch with silicon wire waveguides
Author(s) -
Yuya Shoji,
Kenji Kintaka,
Satoshi Suda,
Hitoshi Kawashima,
Toshifumi Hasama,
Hiroshi Ishikawa
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.009071
Subject(s) - crosstalk , optical switch , optics , interferometry , materials science , insertion loss , power consumption , mach–zehnder interferometer , crossover switch , silicon on insulator , silicon , silicon photonics , optoelectronics , optical power , physics , power (physics) , laser , quantum mechanics
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.