Optical architecture using multiwavelength and polarization encoding for high-speed parallel relational database processing

Choo, Peng Yin; Detofsky, Abram; Louri, Ahmed

doi:10.1117/12.308906

Cited by 1 publication

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“…3,[12][13][14] In addition, several VCSEL based, free space processing systems have been demonstrated. [15][16][17][18] The architecture presented here uses an array of only 2N VCSELs that transmits through fan-out optics onto a liquid crystal routing shutter. The array is divided into sectors that were previously 2,7 shown to reduce optical loss in proportion to the number of sectors, e.g., for a system with 1024 inputs and 32 sectors, the optical fan-out is reduced from 1024 to 32 and the required optical output power of the VCSELs is also reduced by a factor of 32.…”

Section: Introductionmentioning

confidence: 99%

Vertical cavity surface emitting laser based optoelectronic asynchronous transfer mode switch

Wilmsen

1999

Opt. Eng

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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 1024ϫ1024, which would require 2048 ϳ2 mW VCSELs.

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Section: Introductionmentioning

confidence: 99%

Vertical cavity surface emitting laser based optoelectronic asynchronous transfer mode switch

Wilmsen

1999

Opt. Eng

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Optical architecture using multiwavelength and polarization encoding for high-speed parallel relational database processing

Abstract: An architecture for optical CAM-based parallel database processing is presented. It features compact design and constant-time parallel processing of database operations using wavelength and polarization division multiplexing techniques.

Cited by 1 publication

References 2 publications

Vertical cavity surface emitting laser based optoelectronic asynchronous transfer mode switch

Vertical cavity surface emitting laser based optoelectronic asynchronous transfer mode switch

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