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Resonantly enhanced third harmonic generation in microfiber loop resonators

Resonantly enhanced third harmonic generation in microfiber loop resonators
Resonantly enhanced third harmonic generation in microfiber loop resonators
We theoretically study third harmonic generation in silica microfiber loop resonators wherein the large resonant field strength is exploited to increase the efficiency and reduce the required pump power, with a focus on the influence of loop parameters such as loss and coupling. For a 3 mm length loop, the conversion can reach several percent, that is, 640 times greater than an equivalent straight microfiber, for input powers as low as 100 W. The harmonic signal can be toggled between a high- and low-output state due to hysteresis at higher powers, and the efficiency can be further enhanced if the harmonic light is recirculated and coresonant with the pump.
0740-3224
505-511
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Broderick, Neil G.R.
7a4d0b09-189a-4334-be7c-6afd80b7dc45
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Broderick, Neil G.R.
7a4d0b09-189a-4334-be7c-6afd80b7dc45
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Lee, Timothy, Broderick, Neil G.R. and Brambilla, Gilberto (2013) Resonantly enhanced third harmonic generation in microfiber loop resonators. Journal of the Optical Society of America B, 30 (3), 505-511. (doi:10.1364/JOSAB.30.000505).

Record type: Article

Abstract

We theoretically study third harmonic generation in silica microfiber loop resonators wherein the large resonant field strength is exploited to increase the efficiency and reduce the required pump power, with a focus on the influence of loop parameters such as loss and coupling. For a 3 mm length loop, the conversion can reach several percent, that is, 640 times greater than an equivalent straight microfiber, for input powers as low as 100 W. The harmonic signal can be toggled between a high- and low-output state due to hysteresis at higher powers, and the efficiency can be further enhanced if the harmonic light is recirculated and coresonant with the pump.

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Published date: 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 357269
URI: http://eprints.soton.ac.uk/id/eprint/357269
ISSN: 0740-3224
PURE UUID: 1d00ed47-697a-4c3f-9bee-bed347b8fb50

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Date deposited: 04 Oct 2013 14:55
Last modified: 16 Jul 2019 21:22

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Contributors

Author: Timothy Lee
Author: Neil G.R. Broderick

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