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Power-scalable internal frequency doubling scheme for continuous-wave fiber lasers

Power-scalable internal frequency doubling scheme for continuous-wave fiber lasers
Power-scalable internal frequency doubling scheme for continuous-wave fiber lasers
We describe a simple power-scalable concept for efficient second harmonic generation in a cladding-pumped continuous-wave fiber laser. Our approach makes use of an internal resonant enhancement cavity to increase the intracavity power and second harmonic conversion efficiency without the need for active cavity length control and stabilization. This technique has been applied to a cladding-pumped Yb-doped fiber laser yielding 15 W of linearly-polarized continuous-wave green output (at 540 nm) for 90 W of absorbed diode-pump power (at 975 nm). The internal conversion efficiency of the laser with respect to the fundamental power entering the enhancement cavity was >63%. The prospects for further improvement in performance with respect to conversion efficiency and output power will be discussed.
Cieslak, Rafal
42a39095-df7e-44e1-94bf-d33d208e36d3
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Cieslak, Rafal
42a39095-df7e-44e1-94bf-d33d208e36d3
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Cieslak, Rafal and Clarkson, W.A. (2011) Power-scalable internal frequency doubling scheme for continuous-wave fiber lasers. SPIE Photonics West, United States. 22 - 27 Jan 2011. 2 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

We describe a simple power-scalable concept for efficient second harmonic generation in a cladding-pumped continuous-wave fiber laser. Our approach makes use of an internal resonant enhancement cavity to increase the intracavity power and second harmonic conversion efficiency without the need for active cavity length control and stabilization. This technique has been applied to a cladding-pumped Yb-doped fiber laser yielding 15 W of linearly-polarized continuous-wave green output (at 540 nm) for 90 W of absorbed diode-pump power (at 975 nm). The internal conversion efficiency of the laser with respect to the fundamental power entering the enhancement cavity was >63%. The prospects for further improvement in performance with respect to conversion efficiency and output power will be discussed.

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More information

e-pub ahead of print date: January 2011
Additional Information: 7914-118
Venue - Dates: SPIE Photonics West, United States, 2011-01-22 - 2011-01-27
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 341827
URI: https://eprints.soton.ac.uk/id/eprint/341827
PURE UUID: 2c7b5f0e-1027-4464-9388-1b12a176b89b

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Date deposited: 07 Aug 2012 13:32
Last modified: 20 Aug 2019 16:30

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Contributors

Author: Rafal Cieslak
Author: W.A. Clarkson

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