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Silicon Photonic Switches Hybrid-Integrated With CMOS Drivers

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11 Author(s)
Rylyakov, A.V. ; IBM T. J. Watson Res. Center, Yorktown Heights, NY, USA ; Schow, C.L. ; Lee, B.G. ; Green, W.M.J.
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This paper describes the design and measured performance of three different silicon photonic switches: a 2×2 switch, a 1×2 switch, and a 4×4 switch. All of the devices have been hybrid integrated with a corresponding custom 90-nm CMOS driver. The 2×2 switch is based on a wavelength-insensitive Mach-Zehnder interferometer (WIMZ) and the 1×2 is based on a two-ring resonator. The power dissipation of the 2×2 WIMZ switch was 2 mW from a 1.0-V supply, with measured transition time of 3.9 ns. The 4×4 switch, composed of six 2×2 Mach-Zehnder interferometer (MZI) switches was demonstrated to route 3×40 Gb/s WDM data with BER <; 10-12, with less than -10-dB crosstalk and 7-dB loss.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:47 ,  Issue: 1 )