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Fundamental-mode third harmonic generation in microfibers by pulse-induced quasi-phase matching

Fundamental-mode third harmonic generation in microfibers by pulse-induced quasi-phase matching
Fundamental-mode third harmonic generation in microfibers by pulse-induced quasi-phase matching
A scheme to enhance the fundamental-mode third harmonic generation efficiency in microfibers is presented. By introducing an appropriate counter-propagating pulse train, large propagation constant mismatch is partly overcome and nonlinear phase shifts could be corrected for, thus quasi-phase matching between the fundamental pump mode and the fundamental third harmonic mode is achieved, enabling the harmonic power to grow along the direction of propagation. Depending on the microfiber and pulse parameters, phase matching can enhance the conversion efficiency by several orders of magnitude with respect to the non-phase matched case. This scheme offers an alternative approach for harmonic generation and could potentially be applied to other small core waveguides.
1094-4087
22626-22639
Jiang, Xiujuan
fb2d9967-8ae8-4ed0-9d33-9ab7ad334687
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
He, Jing
b66c81f0-2d9b-449e-adc8-f88f7a038c7e
Abdul Khudus, Muhammad
17127b8f-cde4-4c11-aca0-3c9151a42d94
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Jiang, Xiujuan
fb2d9967-8ae8-4ed0-9d33-9ab7ad334687
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
He, Jing
b66c81f0-2d9b-449e-adc8-f88f7a038c7e
Abdul Khudus, Muhammad
17127b8f-cde4-4c11-aca0-3c9151a42d94
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Jiang, Xiujuan, Lee, Timothy, He, Jing, Abdul Khudus, Muhammad and Brambilla, Gilberto (2017) Fundamental-mode third harmonic generation in microfibers by pulse-induced quasi-phase matching. Optics Express, 25 (19), 22626-22639. (doi:10.1364/OE.25.022626).

Record type: Article

Abstract

A scheme to enhance the fundamental-mode third harmonic generation efficiency in microfibers is presented. By introducing an appropriate counter-propagating pulse train, large propagation constant mismatch is partly overcome and nonlinear phase shifts could be corrected for, thus quasi-phase matching between the fundamental pump mode and the fundamental third harmonic mode is achieved, enabling the harmonic power to grow along the direction of propagation. Depending on the microfiber and pulse parameters, phase matching can enhance the conversion efficiency by several orders of magnitude with respect to the non-phase matched case. This scheme offers an alternative approach for harmonic generation and could potentially be applied to other small core waveguides.

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Accepted/In Press date: 8 September 2017
e-pub ahead of print date: 11 September 2017

Identifiers

Local EPrints ID: 413911
URI: http://eprints.soton.ac.uk/id/eprint/413911
ISSN: 1094-4087
PURE UUID: 387f69f7-95c5-4e3f-9961-f76c6ba27397

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Date deposited: 11 Sep 2017 16:31
Last modified: 16 Dec 2019 18:46

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