A 4×4 electrooptic silicon photonic switch fabric with net neutral insertion loss
- IBM T.J. Watson research center, Yorktown Heights, NY (United States). Optical Networking and Computing Subsystems
- IBM T.J. Watson research center, Yorktown Heights, NY (United States). Optical Link and System Design
- IBM T.J. Watson research center, Yorktown Heights, NY (United States)
- Univ. of California, Santa Barbara, CA (United States). Dept. of Electrical and Computer Engineering
We present a strictly nonblocking 4×4 electrooptic silicon photonic switch fabric with on-chip gain. The switch integrates 12 Mach-Zehnder cells in a 3-stage topology equipped with fast electrooptic phase shifters, and thermooptic phase trimmers. To compensate for the losses of the fabric, a 4-channel GaInAsP/InP semiconductor optical amplifier array is flip-chip attached into an etched cavity in the silicon photonic chip with butt-coupled waveguide interfaces. The chip is wirebonded to a CMOS driver that provides push-pull drive to each elementary Mach-Zehnder cell. We demonstrate an optical switch assembly with net neutral insertion loss in the C-band together with nanosecond-scale reconfiguration time.
- Research Organization:
- IBM T.J. Watson research center, Yorktown Heights, NY (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Grant/Contract Number:
- AR0000844
- OSTI ID:
- 1569473
- Report Number(s):
- DOE-IBM-0844-009
- Journal Information:
- Journal of Lightwave Technology, Vol. none, Issue none; ISSN 0733-8724
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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