On-chip broadband silicon thermo-optic 2â2 four-mode optical switch for optical space and local mode switching.
Opt Express
; 26(7): 8375-8384, 2018 Apr 02.
Article
em En
| MEDLINE
| ID: mdl-29715805
ABSTRACT
We present a silicon thermo-optic 2â2 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 2â2 single-mode optical switches based on balanced thermally tunable Mach-Zehnder interferometers are exploited for switching function. The measured insertion losses are 8.0~12.2 dB and the optical signal-to-noise ratios are larger than 11.2 dB in the wavelength range of 1525~1565 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.
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MEDLINE
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En
Ano de publicação:
2018
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Article