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:	http://www.scopus.com/inward/record.url?... http://proceedings.spiedigitallibrary.or...
Depositing User:	Pure Connector
Date Deposited:	21 Nov 2014 12:44
Last Modified:	22 Jul 2020 03:19
URI:	https://ueaeprints.uea.ac.uk/id/eprint/51127
DOI:	10.1117/12.862258

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