Photonics Research, 2016, 4 (1): 01000021, Published Online: Sep. 26, 2016
4 × 4 nonblocking optical switch fabric based on cascaded multimode interferometers Download: 997次
Integrated optics Integrated optics Integrated optics devices Integrated optics devices Optical switching devices Optical switching devices
Abstract
We experimentally demonstrate a 4 × 4 nonblocking silicon thermo-optic (TO) switch fabric consisting of three stages of tunable generalized Mach–Zehnder interferometers. All 24 routing states for nonblocking switching are characterized. The device’s footprint is 4.6 mm × 1.0 mm. Measurements show that the worst cross talk of all switching states is ?7.2 dB. The on-chip insertion loss is in the range of 3.7–13.1 dB. The average TO switching power consumption is 104.8 mW.
Zuxiang Li, Linjie Zhou, Liangjun Lu, Shuoyi Zhao, Dong Li, Jianping Chen. 4 × 4 nonblocking optical switch fabric based on cascaded multimode interferometers[J]. Photonics Research, 2016, 4(1): 01000021.