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Updated: Jun 26, 2026

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Multiple-input single-output FIFO optical buffers with controllable fractional delay lines.

G Das¹, Rodney S Tucker, C Leckie

¹ARC Special Research Centre for Ultra-Broadband Information Networks, Department of Electrical and Electronic Engineering, The University of Melbourne, Victoria 3010, Australia. g.das@ee.unimelb.edu.au

|December 24, 2008

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We introduce a novel multiple-input single-output FIFO (MISO-FIFO) optical buffer. This innovative design significantly reduces buffer size and improves performance for all-optical packet switching networks.

Area of Science:

Computer Science
Electrical Engineering
Optical Communications

Background:

Optical buffering is a critical bottleneck for all-optical packet switching.
Existing buffer designs face challenges in size and efficiency.

Purpose of the Study:

To propose a new optical buffer architecture, the multiple-input single-output FIFO (MISO-FIFO) buffer.
To demonstrate its advantages over traditional optical delay line (ODL) buffers.

Main Methods:

The proposed MISO-FIFO buffer utilizes controllable fractional delay lines (CFDLs).
A Markov Chain (MC) model was developed to analyze buffer performance.
The structure allows for reuse of basic optical delay line (ODL) elements.

Main Results:

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The MISO-FIFO buffer reduces physical size by up to an order of magnitude.
Controllable fractional delay lines (CFDLs) minimize output voids.
The new scheme shows improved throughput and link utilization compared to ODL-based buffers.

Conclusions:

The MISO-FIFO buffer offers a significant advancement in optical buffering technology.
This architecture enhances the feasibility of all-optical packet switching systems.
The design provides a more compact and efficient solution for optical data storage.