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Updated: Jul 3, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Optical injection in semiconductor ring lasers: backfire dynamics.

Lendert Gelens¹, Stefano Beri, Guy Van der Sande

¹Department of Applied Physics and Photonics, Vrije Universiteit Brussel,Brussels, Belgium. lendert.gelens@vub.ac.be

|July 24, 2008

Summary

This summary is machine-generated.

Directional mode switching in semiconductor ring lasers is achieved via optical injection. This novel phenomenon is explained by a two-dimensional asymptotic phase space structure, confirmed by numerical and experimental validation.

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Area of Science:

Optics and Photonics
Semiconductor Physics

Background:

Semiconductor ring lasers (SRLs) are fundamental components in integrated photonics.
Understanding and controlling mode dynamics in SRLs is crucial for advanced optical applications.

Purpose of the Study:

To investigate and explain the mechanism of directional mode switching in SRLs.
To introduce a novel method for controlling laser output directionality.

Main Methods:

Theoretical analysis utilizing a two-dimensional asymptotic phase space model.
Numerical simulations to verify theoretical predictions.
Experimental validation of the proposed mode switching mechanism.

Main Results:

Demonstrated directional mode switching in SRLs through co-propagating optical injection.
Identified the critical role of the asymptotic phase space structure in enabling this switching.
Experimental results confirmed the theoretical and numerical findings.

Conclusions:

Optical injection provides an effective method for controlling directional mode switching in SRLs.
The two-dimensional asymptotic phase space framework offers new insights into SRL dynamics.
This work paves the way for novel applications in tunable laser sources and optical signal processing.