Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/71268
Type: Artigo de periódico
Title: Second harmonic generation and enhancement in microfibers and loop resonators
Author: Gouveia, MA
Lee, T
Ismaeel, R
Ding, M
Broderick, NGR
Cordeiro, CMB
Brambilla, G
Abstract: We model and experimentally investigate second harmonic generation in silica microfibers and loop resonators, in which the second order nonlinearity arises from the glass-air surface dipole and bulk multipole contributions. In the loop resonator, the recirculation of the pump light on resonance is used to increase the conversion. The effect of the loop parameters, such as coupling and loss, is theoretically studied to determine their influence on the resonance enhancement. Experimentally, microfibers were fabricated with diameters around 0.7 mu m to generate the intermodally phase matched second harmonic with an efficiency up to 4.2 x 10(-8) when pumped with 5 ns 1.55 mu m pulses with a peak power of 90 W. After reconfiguring the microfiber into a 1 mm diameter loop, the efficiency was resonantly enhanced by 5.7 times. (C) 2013 AIP Publishing LLC.
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.4807767
Date Issue: 2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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