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Second harmonic generation and enhancement in microfibers and loop resonators

Second harmonic generation and enhancement in microfibers and loop resonators
Second harmonic generation and enhancement in microfibers and loop resonators
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 0.7µm to generate the intermodally phase matched second harmonic with an efficiency up to 4.2×10-8 when pumped with 5ns 1.55µm pulses with a peak power of 90W. After reconfiguring the microfiber into a 1 mm diameter loop, the efficiency was resonantly enhanced by 5.7 times.
0003-6951
201120-[4p]
Gouveia, Marcelo A.
8ada4013-f50e-4d66-b485-f47ddf16cef2
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Ismaeel, Rand
c1fb0984-a4c0-484a-8aef-625d48a62086
Ding, Ming
12b31750-03c4-4f76-aab6-64feb8f13bf0
Broderick, Neil G.R.
7a4d0b09-189a-4334-be7c-6afd80b7dc45
Cordeiro, Cristiano M.B.
a7e0d533-9f74-46e3-87c6-8d41a42cc8f6
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Gouveia, Marcelo A.
8ada4013-f50e-4d66-b485-f47ddf16cef2
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Ismaeel, Rand
c1fb0984-a4c0-484a-8aef-625d48a62086
Ding, Ming
12b31750-03c4-4f76-aab6-64feb8f13bf0
Broderick, Neil G.R.
7a4d0b09-189a-4334-be7c-6afd80b7dc45
Cordeiro, Cristiano M.B.
a7e0d533-9f74-46e3-87c6-8d41a42cc8f6
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Gouveia, Marcelo A., Lee, Timothy, Ismaeel, Rand, Ding, Ming, Broderick, Neil G.R., Cordeiro, Cristiano M.B. and Brambilla, Gilberto (2013) Second harmonic generation and enhancement in microfibers and loop resonators. Applied Physics Letters, 102 (20), 201120-[4p]. (doi:10.1063/1.4807767).

Record type: Article

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 0.7µm to generate the intermodally phase matched second harmonic with an efficiency up to 4.2×10-8 when pumped with 5ns 1.55µm pulses with a peak power of 90W. After reconfiguring the microfiber into a 1 mm diameter loop, the efficiency was resonantly enhanced by 5.7 times.

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More information

Published date: 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 356369
URI: http://eprints.soton.ac.uk/id/eprint/356369
ISSN: 0003-6951
PURE UUID: 0908f50a-7070-4e73-94f2-f01ff06afeae

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Date deposited: 12 Sep 2013 16:57
Last modified: 16 Jul 2019 21:24

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