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.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Efficient 2nd and 4th harmonic generation of a single-frequency, continuous-wave fiber amplifier

Thomas Südmeyer, Yutaka Imai, Hisashi Masuda, Naoya Eguchi, Masaki Saito, and Shigeo Kubota
Opt. Express 16(3) 1546-1551 (2008)

Miniature wavelength-selectable Raman laser: new insights for optimizing performance

Xiaoli Li, Helen M. Pask, Andrew J. Lee, Yujing Huo, James A. Piper, and David J. Spence
Opt. Express 19(25) 25623-25631 (2011)

High power 404 nm source based on second harmonic generation in PPKTP of a tapered external feedback diode laser

Jesper Holm Lundeman, Ole Bjarlin Jensen, Peter E. Andersen, Stefan Andersson-Engels, Bernd Sumpf, Götz Erbert, and Paul Michael Petersen
Opt. Express 16(4) 2486-2493 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription