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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

A fast low-power optical memory based on coupled micro-ring lasers.

Martin T Hill¹, Harmen J S Dorren, Tjibbe De Vries

¹COBRA Research Institute, Technische Universiteit Eindhoven, Postbus 513, 5600 MB Eindhoven, The Netherlands. m.t.hill@tue.nl

|November 13, 2004

Summary

This summary is machine-generated.

Researchers developed a novel optical memory element using microscopic ring lasers. This breakthrough enables high-speed optical processing for telecommunications, paving the way for advanced photonic integrated circuits.

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Area of Science:

Photonics
Optical Computing
Telecommunications

Background:

Increasing speeds in fiber-optic telecommunications necessitate high-speed optical processing.
A critical need exists for high-density, low-power optical memory integrated with semiconductor technology for data buffering.

Purpose of the Study:

To demonstrate a novel optical memory element constructed from interconnected microscopic ring lasers.
To assess the performance and integration potential of this new memory element for digital optical information processing.

Main Methods:

Fabrication of a memory element using microscopic ring lasers on an InP/InGaAsP photonic integrated circuit.
Experimental characterization of switching speed and optical switching energy.
Computational simulations to predict potential for miniaturization and faster switching times.

Main Results:

The demonstrated memory element occupies a small area (18 x 40 microm2).
The device exhibits ultrafast switching within 20 picoseconds (ps) with a low optical switching energy of 5.5 femtojoules (fJ).
Simulations indicate potential for further reduction in dimensions and switching times.

Conclusions:

The developed microscopic laser-based memory element is a promising candidate for high-density, high-speed optical buffering.
Dense integration and interconnection of these elements on photonic integrated circuits are feasible.
This technology advancement suggests the viability of fast digital optical information processing systems utilizing large-scale integration.