The need for additional IO bandwidth for data center device interconnection is well established. Optical interconnects can deliver required bandwidth along with energy and space efficiency at a cost that encourages adoption. To this end, we are developing an optical transceiver incorporating multimode VCSEL emitters in a coarse wavelength division multiplex (CWDM) system capable of transmission at 25Gbps per channel, 100Gbps/fiber, and a maximum aggregate bidirectional data rate of 1.2Tbps. Electrical connection to the transceiver can be made by solder reflow or LGA connector, and optical connection is made by means of a custom optical connector supporting CWDM transmission.
An ATM-based buffered HyperPlane smart pixel array (SPA) utilizing the Hybrid CMOS-SEED technology has been designed, fabricated, and tested. Multiple quantum well p-i-n photodiodes (SEEDs) are used as the optoelectronic interface in the SPA. The SPA consists of a 4 X 9 array of smart pixels comprised of 4 parallel ATM node channels. The chip fabricated is an experimental version extensible to a 256 X 256 array for implementing an ATM-based HyperPlane switching architecture on a free space optical backplane. Experimental performance of the SPA is presented.
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