On-chip broadband silicon thermo-optic 2 x 2 four-mode optical switch for optical space and local mode switching
On-chip broadband silicon thermo-optic 2 x 2 four-mode optical switch for optical space and local mode switching
复制标题
用于光学空间和本地模式切换的片上宽带硅热光 2 x 2 四模光开关
DOI:
10.1364/oe.26.008375
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发表时间:
2018-04-02
期刊:
影响因子:
3.8
通讯作者:
Yang, Lin
中科院分区:
文献类型:
--
作者:
Zhou, Ting;Jia, Hao;Yang, Lin
We present a silicon thermo-optic 2 x 2 four-mode optical switch optimized for optical space switching plus local optical mode switching. Four asymmetric directional couplers are utilized for mode multiplexing and de-multiplexing. Sixteen 2 x 2 single-mode optical switches based on balanced thermally tunable Mach-Zehnder interferometers are exploited for switching function. The measured insertion losses are 8.0 similar to 12.2 dB and the optical signal-to-noise ratios are larger than 11.2 dB in the wavelength range of 1525 similar to 1565 nm. The optical links in "all-bar" and "all-cross" states exhibit less than 2.0 dB and 1.4 dB power penalties respectively below 10(-9) bit error rates for 40 Gbps data transmission. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.