Open Access16 × 16 non-blocking silicon optical switch based on electro-optic Mach-Zehnder interferometers
Author(s) -
Liangjun Lu,
Shuoyi Zhao,
Linjie Zhou,
Dong Liu,
Zuxiang Li,
Minjuan Wang,
Xinwan Li,
Jianping Chen
Publication year - 2016
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.24.009295
Subject(s) - optics , astronomical interferometer , optical switch , insertion loss , mach–zehnder interferometer , materials science , optoelectronics , extinction ratio , physics , wavelength , interferometry
We experimentally demonstrate a 16 × 16 non-blocking optical switch fabric with a footprint of 10.7 × 4.4 mm 2 . 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.