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Updated: Jul 14, 2026

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Wavelength-encoded OCDMA system using opto-VLSI processors.

Muhsen Aljada¹, Kamal Alameh

¹Centre of Excellence for MicroPhotonic Systems, Electron Science Research Institute, Edith Cowan University, Joondalup WA6027, Australia.

|July 3, 2007

Summary

We developed a novel optical code-division multiple-access system using opto-VLSI and fiber Bragg gratings. This technology enables high-speed, wavelength-encoded data transmission for multiple users.

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Area of Science:

Optoelectronics
Optical Communications
Integrated Optics

Background:

Optical code-division multiple-access (OCDMA) systems offer enhanced security and flexibility in optical networks.
Existing OCDMA architectures face challenges in terms of scalability and processing speed.
Opto-VLSI (Very-Large-Scale Integration) technology presents a promising avenue for high-performance optical signal processing.

Purpose of the Study:

To propose and experimentally demonstrate a novel encoder-decoder structure for wavelength-encoded OCDMA.
To achieve high data rates per user (2.5 Gbits/s).
To leverage opto-VLSI processing for efficient codeword generation.

Main Methods:

The proposed system utilizes a single 1D opto-VLSI processor combined with a fiber Bragg grating (FBG) array.
The FBG array performs spectral and temporal slicing of broadband optical pulses.
Digital phase holograms generated by the opto-VLSI processor are used to create unique codewords.

Main Results:

Successful experimental demonstration of the 2.5 Gbits/s per user OCDMA encoder-decoder structure.
Characterization of system performance using autocorrelation and cross-correlation functions.
Evaluation of signal quality through eye diagram analysis.

Conclusions:

The proposed opto-VLSI based OCDMA structure is effective for high-speed optical code generation.
This approach offers a scalable and efficient solution for future optical access networks.
The integration of FBG arrays and opto-VLSI processors enables advanced functionalities in OCDMA systems.