title: 16 × 16 non-blocking silicon optical switch based on electro-optic Mach-Zehnder interferometers.
abstract: We experimentally demonstrate a 16 × 16 non-blocking optical switch fabric with a footprint of 10.7 × 4.4 mm2. The switch fabric is composed of 56 2 × 2 silicon Mach-Zehnder interferometers (MZIs), with each integrated with a pair of TiN resistive micro-heaters and a p-i-n diode. The average on-chip insertion loss at 1560 nm wavelength is ~6.7 dB and ~14 dB for the "all-cross" and "all-bar" states, respectively, with a loss variation of ± 1 dB over all routing paths. The measured rise/fall time of the switch upon electrical tuning is 3.2/2.5 ns. The switching functionality is verified by transmission of 20 Gb/s on-off keying (OOK) and 50 Gb/s quadrature phase-shift keying (QPSK) optical signals.
authors.forename: Liangjun
authors.initials: L
authors.lastname: Lu
authors.forename: Shuoyi
authors.initials: S
authors.lastname: Zhao
authors.forename: Linjie
authors.initials: L
authors.lastname: Zhou
authors.forename: Dong
authors.initials: D
authors.lastname: Li
authors.forename: Zuxiang
authors.initials: Z
authors.lastname: Li
authors.forename: Minjuan
authors.initials: M
authors.lastname: Wang
authors.forename: Xinwan
authors.initials: X
authors.lastname: Li
authors.forename: Jianping
authors.initials: J
authors.lastname: Chen