title: Low-crosstalk 2 x 2 thermo-optic switch with silicon wire waveguides.
abstract: 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.
authors.affiliation: Network Photonics Research Center, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan. y-shoji@aist.go.jp
authors.forename: Yuya
authors.initials: Y
authors.lastname: Shoji
authors.forename: Kenji
authors.initials: K
authors.lastname: Kintaka
authors.forename: Satoshi
authors.initials: S
authors.lastname: Suda
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Kawashima
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Hasama
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ishikawa