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Efficient operation of a solid-state adaptive laser oscillator

Efficient operation of a solid-state adaptive laser oscillator
Efficient operation of a solid-state adaptive laser oscillator
We present the results of a cw diode-pumped Nd:YVO4 laser oscillator based on a self-starting adaptive gain-grating resonator. Adaptive laser operation has been demonstrated with 12-W output for 37 W of diode pumping, producing a TEM00 mode that compensates for thermal aberrations. The issue of the finite aperture of the amplifier is discussed, and a design that incorporates an intracavity lens is used to improve the collection efficiency with severe thermal lensing at high pump powers. The powers of the beams involved in the resonator are compared with theory and are found to be in good agreement. Spectral and temporal behavior of the adaptive laser is investigated, and very interesting behavior is shown, including self-induced temporal modulation dynamics and a switching between a narrowband and a broad bandwidth of operation.
0003-6935
5638-5644
Thompson, B.A.
571ae5d9-3eb2-4f8b-80a6-7e8f7906311d
Minassian, A.
5a040f51-e293-4172-b09b-12d99d5a7539
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Damzen, M.J.
cce812a0-0634-4d11-b39e-0191ddd04d60
Thompson, B.A.
571ae5d9-3eb2-4f8b-80a6-7e8f7906311d
Minassian, A.
5a040f51-e293-4172-b09b-12d99d5a7539
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Damzen, M.J.
cce812a0-0634-4d11-b39e-0191ddd04d60

Thompson, B.A., Minassian, A., Eason, R.W. and Damzen, M.J. (2002) Efficient operation of a solid-state adaptive laser oscillator. Applied Optics, 41 (27), 5638-5644. (doi:10.1364/AO.41.005638).

Record type: Article

Abstract

We present the results of a cw diode-pumped Nd:YVO4 laser oscillator based on a self-starting adaptive gain-grating resonator. Adaptive laser operation has been demonstrated with 12-W output for 37 W of diode pumping, producing a TEM00 mode that compensates for thermal aberrations. The issue of the finite aperture of the amplifier is discussed, and a design that incorporates an intracavity lens is used to improve the collection efficiency with severe thermal lensing at high pump powers. The powers of the beams involved in the resonator are compared with theory and are found to be in good agreement. Spectral and temporal behavior of the adaptive laser is investigated, and very interesting behavior is shown, including self-induced temporal modulation dynamics and a switching between a narrowband and a broad bandwidth of operation.

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More information

Published date: 2002

Identifiers

Local EPrints ID: 13745
URI: http://eprints.soton.ac.uk/id/eprint/13745
ISSN: 0003-6935
PURE UUID: 5d32a937-b049-42ee-bde2-914eb4944711
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 01 Jan 2005
Last modified: 18 Feb 2021 16:36

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