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Power scaling of continuous-wave adaptive gain-grating laser resonators

Power scaling of continuous-wave adaptive gain-grating laser resonators
Power scaling of continuous-wave adaptive gain-grating laser resonators
We demonstrate a power-scaling strategy in a continuous-wave adaptive phase-conjugate oscillator power amplifier (PCO-PA) system that actively corrects, via phase-conjugation, for thermally induced phase-distortions introduced by a power-amplifier (PA) placed in the output arm of the phase conjugate oscillator (PCO). Phase-conjugation is achieved by saturable gain four-wave mixing in a PCO Nd:YVO4 amplifier. Single-longitudinal mode phase-conjugate (PC) outputs of almost 11.5 W with an Mx2=1.4, My2=1.2 have so far been achieved with a PCO operating at 6 W PC output, a power gain of two through the PA. The saturable gain four-wave mixing that takes place in the PCO-PA system has been modelled and the results can be used to predict how best to proceed with further increasing the PC output power from such a system.
phase conjugation, gain-grating, diode-pumped, thermal distortion
0030-4018
197-205
Hendricks, Jason M.
b88a6c27-2d9b-42b6-a5f0-220e032cc6d7
Hillier, David I.
06b75220-e812-45c1-a5d8-6a6bbe46d6ec
Barrington, Stephen J.
8798bac0-839f-4cf3-8d85-d172fe819f2e
Shepherd, David P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Damzen, Michael J.
c92e3ae2-4afe-49e6-9420-2235da280bb0
Minassian, Ara
327c57df-490b-40f9-bd40-dbf05ce474a0
Thompson, Benjamin
2a6a9476-1f00-4023-8410-06b81a34b837
Hendricks, Jason M.
b88a6c27-2d9b-42b6-a5f0-220e032cc6d7
Hillier, David I.
06b75220-e812-45c1-a5d8-6a6bbe46d6ec
Barrington, Stephen J.
8798bac0-839f-4cf3-8d85-d172fe819f2e
Shepherd, David P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Damzen, Michael J.
c92e3ae2-4afe-49e6-9420-2235da280bb0
Minassian, Ara
327c57df-490b-40f9-bd40-dbf05ce474a0
Thompson, Benjamin
2a6a9476-1f00-4023-8410-06b81a34b837

Hendricks, Jason M., Hillier, David I., Barrington, Stephen J., Shepherd, David P., Eason, Robert W., Damzen, Michael J., Minassian, Ara and Thompson, Benjamin (2002) Power scaling of continuous-wave adaptive gain-grating laser resonators. Optics Communications, 205 (1-3), 197-205. (doi:10.1016/S0030-4018(02)01321-4).

Record type: Article

Abstract

We demonstrate a power-scaling strategy in a continuous-wave adaptive phase-conjugate oscillator power amplifier (PCO-PA) system that actively corrects, via phase-conjugation, for thermally induced phase-distortions introduced by a power-amplifier (PA) placed in the output arm of the phase conjugate oscillator (PCO). Phase-conjugation is achieved by saturable gain four-wave mixing in a PCO Nd:YVO4 amplifier. Single-longitudinal mode phase-conjugate (PC) outputs of almost 11.5 W with an Mx2=1.4, My2=1.2 have so far been achieved with a PCO operating at 6 W PC output, a power gain of two through the PA. The saturable gain four-wave mixing that takes place in the PCO-PA system has been modelled and the results can be used to predict how best to proceed with further increasing the PC output power from such a system.

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More information

Published date: 15 April 2002
Keywords: phase conjugation, gain-grating, diode-pumped, thermal distortion

Identifiers

Local EPrints ID: 13794
URI: http://eprints.soton.ac.uk/id/eprint/13794
ISSN: 0030-4018
PURE UUID: 2c2adff1-0176-481a-bd89-dc888062021d
ORCID for David P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184
ORCID for Robert W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 22 Dec 2004
Last modified: 18 Feb 2021 16:37

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Contributors

Author: Jason M. Hendricks
Author: David I. Hillier
Author: Stephen J. Barrington
Author: David P. Shepherd ORCID iD
Author: Robert W. Eason ORCID iD
Author: Michael J. Damzen
Author: Ara Minassian
Author: Benjamin Thompson

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