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946nm Nd:YAG laser frequency doubled with periodically-poled LiNbO3

946nm Nd:YAG laser frequency doubled with periodically-poled LiNbO3
946nm Nd:YAG laser frequency doubled with periodically-poled LiNbO3
Frequency doubling of a 946nm Nd:YAG laser is a route to the generation of high average power in the blue spectral region. Periodically-poled lithium niobate (PPLN), with its combination of high nonlinearity and non-critical phase-matching offers the prospect of high conversion in a simple extra-cavity single-pass arrangement. The PPLN (length 15mm, grating period 4.5µm ) was heated at a temperature of 140°C. With 1.5W incident power at 946nm in a linearly polarized fundamental mode (M2 < 1.1) and in pulsed operation at the relaxation oscillation frequency (160kHz, 300ns pulses), a power of 450mW with M2 = 1.25 was generated at 473nm. The conversion efficiency versus internal fundamental power was 40%. No photorefractive damage was observed.
Pollnau, M.
1094856b-791a-4050-98d9-c07777d5f0f5
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Britton, P.J.
4cf11f97-e7fa-4caa-8a49-79b9280fbad1
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Pollnau, M.
1094856b-791a-4050-98d9-c07777d5f0f5
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Britton, P.J.
4cf11f97-e7fa-4caa-8a49-79b9280fbad1
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Pollnau, M., Ross, G.W., Clarkson, W.A., Smith, P.G.R., Britton, P.J. and Hanna, D.C. (1997) 946nm Nd:YAG laser frequency doubled with periodically-poled LiNbO3. Conference of the Swiss Physical Society, Switzerland.

Record type: Conference or Workshop Item (Paper)

Abstract

Frequency doubling of a 946nm Nd:YAG laser is a route to the generation of high average power in the blue spectral region. Periodically-poled lithium niobate (PPLN), with its combination of high nonlinearity and non-critical phase-matching offers the prospect of high conversion in a simple extra-cavity single-pass arrangement. The PPLN (length 15mm, grating period 4.5µm ) was heated at a temperature of 140°C. With 1.5W incident power at 946nm in a linearly polarized fundamental mode (M2 < 1.1) and in pulsed operation at the relaxation oscillation frequency (160kHz, 300ns pulses), a power of 450mW with M2 = 1.25 was generated at 473nm. The conversion efficiency versus internal fundamental power was 40%. No photorefractive damage was observed.

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More information

e-pub ahead of print date: 10 October 1997
Additional Information: SPG/SSP 14(1) 24
Venue - Dates: Conference of the Swiss Physical Society, Switzerland, 1997-10-10

Identifiers

Local EPrints ID: 76716
URI: https://eprints.soton.ac.uk/id/eprint/76716
PURE UUID: aa3ad3f7-2598-43b7-ab34-1daa73a6d103

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:38

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Contributors

Author: M. Pollnau
Author: G.W. Ross
Author: W.A. Clarkson
Author: P.G.R. Smith
Author: P.J. Britton
Author: D.C. Hanna

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