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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 13 — Jul. 1, 2013
  • pp: 2292–2294

Power scalable >25 W supercontinuum laser from 2 to 2.5 μm with near-diffraction-limited beam and low output variability

Vinay V. Alexander, Zhennan Shi, Mohammed N. Islam, Kevin Ke, Michael J. Freeman, Agustin Ifarraguerri, Joseph Meola, Anthony Absi, James Leonard, Jerome Zadnik, Anthony S. Szalkowski, and Gregory J. Boer  »View Author Affiliations


Optics Letters, Vol. 38, Issue 13, pp. 2292-2294 (2013)
http://dx.doi.org/10.1364/OL.38.002292


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Abstract

A power scalable thulium-doped fiber-amplifier-based supercontinuum (SC) laser covering the shortwave infrared region from 2 to 2.5 μm is demonstrated. The SC laser has an average power up to 25.7 W and a spectral density of >12dBm/nm. Power scalability of the laser is proven by showing that the SC laser maintains a nearly constant spectral output, beam quality (M2 measurements), and output spectral stability as the SC average power is scaled from 5 to 25.7 W average output power. We verify that the SC laser beam is nearly diffraction limited with an M2<1.2 for all power levels. Output spectral stability measurements with power scaling show a radiometric variability of <0.8% across the entire SC spectrum.

© 2013 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(320.6629) Ultrafast optics : Supercontinuum generation
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 27, 2013
Revised Manuscript: May 28, 2013
Manuscript Accepted: May 29, 2013
Published: June 26, 2013

Virtual Issues
July 1, 2013 Spotlight on Optics

Citation
Vinay V. Alexander, Zhennan Shi, Mohammed N. Islam, Kevin Ke, Michael J. Freeman, Agustin Ifarraguerri, Joseph Meola, Anthony Absi, James Leonard, Jerome Zadnik, Anthony S. Szalkowski, and Gregory J. Boer, "Power scalable >25 W supercontinuum laser from 2 to 2.5 μm with near-diffraction-limited beam and low output variability," Opt. Lett. 38, 2292-2294 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-13-2292


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