Title :
CMOS enabled silicon photonics for data center packet switching
Author :
Chen, L. ; Tang, Y. ; Bowers, J.E. ; Theogarajan, L.
Author_Institution :
University of California, Santa Barbara, USA
Abstract :
A low-power high data rate optical packet switch integrating hybrid silicon Mach-Zehnder Interfer-ometer (MZI) based optical switch and 0.13µm CMOS IC for data center switching application is described. A novel truly differential transimpedance amplifier (TIA), with high-bandwidth power supply rejection ratio (PSRR), that serves as the front-end for a 2Gbps packet-header receiver is presented. The TIA achieves 55.7dB and 1.97GHz f3dB while consuming 3.3mW from 1.2V supply excluding 50Ω output driver. We also demonstrate a low-power optical switch driver enabled by a compact supply-regulated driver that features variable output voltage and power-boost for fast rise times. The CMOS driver chip is wirebonded to photonic IC, achieving≤5ns switching time while consuming 250µW.
Keywords :
Bandwidth; CMOS integrated circuits; Optical packet switching; Optical switches; Photonics; Silicon; Switching circuits; Silicon photonics; capacitive switch driver; data center; data warehouses; truly differential transimpedance;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259474
