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Nonlinear photonic crystals in lithium niobate

Nonlinear photonic crystals in lithium niobate
Nonlinear photonic crystals in lithium niobate
This study demonstrates the idea of a 2-D photonic crystal by poling a wafer of lithium niobate with a hexagonal pattern. The fabricated crystal is used in performing experiments on 2nd, 3rd, and 4th harmonic generation. The peak conversion efficiencies of > 80% for SHG using picosecond pump pulses and conversion efficiencies of 10-4 % for third and fourth harmonic generation using low power picosecond pulses are measured. In addition, the first observation of type II sum frequency generation in a periodically poled material is successfully made. This shows that 2D NPCs are ideal for multiwavelength harmonic generation. Problems on the intensity of the interacting waves and the effective nonlinearity are solved to realize multiwavelength harmonic processes.
IEEE
Broderick, N.G.R.
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Bratfalean, R.T.
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Gallo, K.
e9985849-7c3f-4e67-9eb3-d91514f96a9f
Peacock, A.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Broderick, N.G.R.
1b3f7d34-4fd4-4ec5-9b90-c3cfb176f757
Bratfalean, R.T.
6fc7dd56-e8cf-4835-943f-75762b82cd69
Gallo, K.
e9985849-7c3f-4e67-9eb3-d91514f96a9f
Peacock, A.
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Broderick, N.G.R., Bratfalean, R.T., Gallo, K. and Peacock, A. (2003) Nonlinear photonic crystals in lithium niobate. In 2003 Digest of LEOS Summer Topical Meeting. IEEE.. (doi:10.1109/LEOSST.2003.1224263).

Record type: Conference or Workshop Item (Paper)

Abstract

This study demonstrates the idea of a 2-D photonic crystal by poling a wafer of lithium niobate with a hexagonal pattern. The fabricated crystal is used in performing experiments on 2nd, 3rd, and 4th harmonic generation. The peak conversion efficiencies of > 80% for SHG using picosecond pump pulses and conversion efficiencies of 10-4 % for third and fourth harmonic generation using low power picosecond pulses are measured. In addition, the first observation of type II sum frequency generation in a periodically poled material is successfully made. This shows that 2D NPCs are ideal for multiwavelength harmonic generation. Problems on the intensity of the interacting waves and the effective nonlinearity are solved to realize multiwavelength harmonic processes.

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More information

Published date: July 2003
Venue - Dates: LEOS Summer Topical Meeting, , Vancouver, BC, Canada, 2003-07-14 - 2003-07-16

Identifiers

Local EPrints ID: 443521
URI: http://eprints.soton.ac.uk/id/eprint/443521
PURE UUID: bd443286-b27f-4df4-892b-27b64c2d396f
ORCID for A. Peacock: ORCID iD orcid.org/0000-0002-1940-7172

Catalogue record

Date deposited: 28 Aug 2020 16:30
Last modified: 09 Jan 2022 03:12

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Contributors

Author: N.G.R. Broderick
Author: R.T. Bratfalean
Author: K. Gallo
Author: A. Peacock ORCID iD

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