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Generation of high-power blue light in periodically-poled LiNbO3 (PPLN)

Generation of high-power blue light in periodically-poled LiNbO3 (PPLN)
Generation of high-power blue light in periodically-poled LiNbO3 (PPLN)
We report the generation of 450mW average blue (473nm) power by frequency-doubling of a diode-pumped 946nm Nd:YAG laser. Pulsed operation at high repetition rate (~ 160 kHz) was achieved by driving the relaxation oscillations of the laser. A 40% conversion efficiency to the second harmonic is obtained in a single-pass, extra-cavity, first-order, quasi phase-matched process using periodically-poled lithium niobate (period 4.5µm, thickness 0.5mm and length 15mm) at 140°C. The resulting high-power, blue beam is circular in profile and near-diffraction-limited, indicating that photorefractive effects do not appear to limit device performance.
0146-9592
171-173
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Pollnau, M.
1094856b-791a-4050-98d9-c07777d5f0f5
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Britton, P.E.
157d0402-c93c-4020-9193-65b687e22fe5
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Pollnau, M.
1094856b-791a-4050-98d9-c07777d5f0f5
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Britton, P.E.
157d0402-c93c-4020-9193-65b687e22fe5
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Ross, G.W., Pollnau, M., Smith, P.G.R., Clarkson, W.A., Britton, P.E. and Hanna, D.C. (1998) Generation of high-power blue light in periodically-poled LiNbO3 (PPLN). Optics Letters, 23 (3), 171-173. (doi:10.1364/OL.23.000171).

Record type: Article

Abstract

We report the generation of 450mW average blue (473nm) power by frequency-doubling of a diode-pumped 946nm Nd:YAG laser. Pulsed operation at high repetition rate (~ 160 kHz) was achieved by driving the relaxation oscillations of the laser. A 40% conversion efficiency to the second harmonic is obtained in a single-pass, extra-cavity, first-order, quasi phase-matched process using periodically-poled lithium niobate (period 4.5µm, thickness 0.5mm and length 15mm) at 140°C. The resulting high-power, blue beam is circular in profile and near-diffraction-limited, indicating that photorefractive effects do not appear to limit device performance.

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Published date: 1998

Identifiers

Local EPrints ID: 77898
URI: https://eprints.soton.ac.uk/id/eprint/77898
ISSN: 0146-9592
PURE UUID: 5968f2c2-195a-45db-af63-0793b17463d2

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Date deposited: 11 Mar 2010
Last modified: 17 Jul 2019 00:13

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