We report on the implementation of an optical crossbar interconnectconsisting of a centralized free-space beam-steering subsystem, adistributed array of vertical-cavity surface-emitting lasers andphotoreceivers, a fiber image guide, and a large-core polymer fiberarray. The interconnect can in principle handle more than 350cross-bar channels, but our implementation demonstrated only 240channels. Transmissions of 500-Mbit/s per channel weredemonstrated. Approximately 12.7-dB end-to-end optical channelattenuation was measured. Details of component design, packaging, system integration, and testing are presented and discussed.
© 1998 Optical Society of America
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4230) Fiber optics and optical communications : Multiplexing
(160.5470) Materials : Polymers
(200.4650) Optics in computing : Optical interconnects
Yao Li, Ting Wang, and Shigeru Kawai, "Distributed Crossbar Interconnects with Vertical-Cavity Surface-Emitting Laser-Angle Multiplexing and Fiber Image Guides," Appl. Opt. 37, 254-263 (1998)