Optical transistor action by nonlinear coupling of stimulated emission and coherent scattering

Andrews, D. L. and Bradshaw, D.S. (2010) Optical transistor action by nonlinear coupling of stimulated emission and coherent scattering. In: Proceedings of SPIE - The International Society for Optical Engineering. UNSPECIFIED. ISBN 9780819482938

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Abstract

In the pursuit of improved platforms for computing, communications and internet connectivity, all-optical systems offer excellent prospects for a speed and fidelity of data transmission that will greatly surpass conventional electronics, alongside the anticipated benefits of reduced energy loss. With a diverse range of sources and fiber optical connections already in production, much current effort is being devoted towards forging optical components for signal switching, such as an all-optical transistor. Achievement of the desired characteristics for any practicable device can be expected to depend crucially on the engagement of a strongly nonlinear optical response. The innovative scheme proposed in the present work is based upon a third-order nonlinearity - its effect enhanced by stimulated emission - operating within a system designed to exploit the highly nonlinear response observed at the threshold for laser emission. Here, stimulated emission is strongly driven by coupling to the coherent scattering of a signal input beam whose optical frequency is purposely off-set from resonance. An electrodynamical analysis of the all-optical coupling process shows that the signal beam can significantly modify the kinetics of emission, and so lead to a dramatically enhanced output of resonant radiation. The underlying nonlinear optical mechanism is analyzed, model calculations are performed for realizable three-level laser systems, and the results exhibited graphically. The advantages of implementing this all-optical transistor scheme, compared to several previously envisaged proposals, are then outlined.

Item Type: Book Section
Uncontrolled Keywords: scattering,lasers,nonlinear response,optical components,radiation,data transmission,electronics,internet
Faculty \ School:
Faculty of Science > School of Chemistry
Related URLs:
Depositing User: Pure Connector
Date Deposited: 21 Nov 2014 12:44
Last Modified: 22 Apr 2020 10:45
URI: https://ueaeprints.uea.ac.uk/id/eprint/51127
DOI: 10.1117/12.862258

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