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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 10 — May. 15, 2010
  • pp: 1542–1544

Active phase and polarization locking of a 1.4 kW fiber amplifier

Gregory D. Goodno, Stuart J. McNaught, Joshua E. Rothenberg, Timothy S. McComb, Peter A. Thielen, Michael G. Wickham, and Mark E. Weber  »View Author Affiliations


Optics Letters, Vol. 35, Issue 10, pp. 1542-1544 (2010)
http://dx.doi.org/10.1364/OL.35.001542


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Abstract

A three-stage Yb-fiber amplifier emitted 1.43 kW of single-mode power when seeded with a 25 GHz linewidth master oscillator (MO). The amplified output was polarization stabilized and phase locked using active heterodyne phase control. A low-power sample of the output beam was coherently combined to a second fiber amplifier with 90% visibility. The measured combining efficiency agreed with estimated decoherence effects from fiber nonlinearity, linewidth, and phase-locking accuracy. This is the highest-power fiber laser that has been coherently locked using any method that allows brightness scaling.

© 2010 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 26, 2010
Revised Manuscript: March 24, 2010
Manuscript Accepted: March 28, 2010
Published: May 5, 2010

Citation
Gregory D. Goodno, Stuart J. McNaught, Joshua E. Rothenberg, Timothy S. McComb, Peter A. Thielen, Michael G. Wickham, and Mark E. Weber, "Active phase and polarization locking of a 1.4 kW fiber amplifier," Opt. Lett. 35, 1542-1544 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-10-1542

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