Vertical cavity surface emitting laser based optoelectronic asynchronous transfer mode switch
- Colorado State University, Department of Electrical Engineering, Fort Collins, Colorado 80523-1373 (United States)
- Cambridge University, Engineering Department, Trumpington Street, Cambridge CB2 1PZ (United Kingdom)
Large broadband asynchronous transfer mode (ATM) switching nodes require novel hardware solutions that could benefit from the inclusion of optical interconnect technology, since electronic solutions are limited by pin out and by the capacitance/inductance of the interconnections. We propose, analyze and demonstrate a new three stage free space optical switch that utilizes vertical cavity surface emitting lasers (VCSELs) for the optical interconnections, a liquid crystal spatial light modulator (SLM) as a reconfigurable shutter and relatively simple optics for fan out and fan in. A custom complementary metal oxide semiconductor (CMOS) chip is required to introduce a time delay in the optical bit stream and to drive the VCSELs. Analysis shows that the switch should be scalable to 1024{times}1024, which would require 2048 {approximately}2 mW VCSELs. {copyright} {ital 1999 Society of Photo-Optical Instrumentation Engineers.}
- OSTI ID:
- 356219
- Journal Information:
- Optical Engineering, Vol. 38, Issue 7; Other Information: PBD: Jul 1999
- Country of Publication:
- United States
- Language:
- English
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