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Related Experiment Video

Updated: Jul 7, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Optical smart-pixel-based Clos crossbar switch.

T M Slagle, K H Wagner

|February 12, 2008

Summary

This summary is machine-generated.

We designed a novel optical Clos switch using smart-pixel devices for high-speed data routing. This technology could enable a 1024-channel switch if power consumption is reduced.

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Published on: March 20, 2017

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Last Updated: Jul 7, 2026

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Published on: February 4, 2017

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Area of Science:

Optical switching technologies
Optoelectronics
Integrated photonics

Background:

Clos architectures are essential for scalable network switches.
Smart-pixel devices offer integrated optical and electronic functionalities.
Wavelength-division multiplexing (WDM) increases fiber optic communication capacity.

Purpose of the Study:

To design an optically interconnected Clos crossbar switch.
To evaluate the feasibility of using hybrid complementary metal-oxide semiconductor-self-electro-optic device (CMOS-SEED) smart-pixel arrays for optical switching.
To assess the scalability of the proposed architecture.

Main Methods:

Design of a three-stage optical Clos network.
Development of a hybrid CMOS-SEED crossbar smart-pixel array.
Configuration of multiple-quantum-well diodes as modulators or receivers.
Electrical configuration of local memory and receiver parameters.

Main Results:

A 16-channel optical Clos switch design using hybrid CMOS-SEED smart-pixel arrays was developed.
The smart-pixel devices feature an 8x8 array of multiple-quantum-well diodes.
These diodes can be configured as modulators with local memory or as receivers with adjustable gain and threshold.
The technology shows potential for a 1024-channel Clos switch operating at 500 Mbits/s per channel.

Conclusions:

The designed optical Clos switch architecture is suitable for space-wavelength switching.
Hybrid CMOS-SEED technology is a promising candidate for future high-capacity optical switches.
Further reduction in pixel power consumption is necessary to achieve the full potential of a 1024-channel switch.