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Internal resonantly enhanced frequency doubling of continuous-wave fiber lasers

Internal resonantly enhanced frequency doubling of continuous-wave fiber lasers
Internal resonantly enhanced frequency doubling of continuous-wave fiber lasers
In this Letter we describe a simple method for frequency doubling in high-power CW fiber lasers that offers the prospect of very high conversion efficiency and high power in the visible wavelength regime. Our approach is based on second harmonic generation in an enhancement resonator within the fiber laser cavity and does not require active cavity length stabilization. This technique has been applied to a cladding-pumped Yb-doped fiber laser to generate 19W of linearly polarized CW green output at 540nm, with excellent temporal stability for 90W of absorbed diode pump power at 975nm. The prospects for further improvement in performance with respect to conversion efficiency and output power are considered.
0146-9592
1896-1898
Cieslak, R.
42a39095-df7e-44e1-94bf-d33d208e36d3
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Cieslak, R.
42a39095-df7e-44e1-94bf-d33d208e36d3
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Cieslak, R. and Clarkson, W.A. (2011) Internal resonantly enhanced frequency doubling of continuous-wave fiber lasers. Optics Letters, 36 (10), 1896-1898. (doi:10.1364/OL.36.001896).

Record type: Article

Abstract

In this Letter we describe a simple method for frequency doubling in high-power CW fiber lasers that offers the prospect of very high conversion efficiency and high power in the visible wavelength regime. Our approach is based on second harmonic generation in an enhancement resonator within the fiber laser cavity and does not require active cavity length stabilization. This technique has been applied to a cladding-pumped Yb-doped fiber laser to generate 19W of linearly polarized CW green output at 540nm, with excellent temporal stability for 90W of absorbed diode pump power at 975nm. The prospects for further improvement in performance with respect to conversion efficiency and output power are considered.

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More information

Published date: May 2011
Organisations: Optoelectronics Research Centre, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 191503
URI: http://eprints.soton.ac.uk/id/eprint/191503
ISSN: 0146-9592
PURE UUID: 431c7ca9-ffdc-492c-8ddf-657a3f5a8826

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Date deposited: 22 Jun 2011 07:27
Last modified: 14 Mar 2024 03:44

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Contributors

Author: R. Cieslak
Author: W.A. Clarkson

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