Recovery Act - Development of a Fiber Based Source of High Average Power Ultrafast Pulses at 2.0 Microns

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$750,000.00
Award Year:
2010
Program:
STTR
Phase:
Phase II
Contract:
n/a
Award Id:
90394
Agency Tracking Number:
90052
Solicitation Year:
n/a
Solicitation Topic Code:
04d
Solicitation Number:
n/a
Small Business Information
1855 South 57th Court, Boulder, CO, 80301
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
160115093
Principal Investigator:
DaisyRaymondson
Dr.
(303) 544-9068
draymondson@kmlabs.com
Business Contact:
DaisyRaymondson
Dr.
(303) 544-9068
draymondson@kmlabs.com
Research Institute:
Colorado School of Mines
Ralph Brown
Office of Research Adminstration
Golden, CO, 80401
(303) 273-3910

Abstract
Bright coherent light sources in the soft x-ray region of the spectrum are useful for a variety of applications of interest to DOE in the basic sciences, nanoscience and biology, and for technological applications. At Free-Electron Laser Facilities, peak power output of the x-ray pulses is enhanced by using a mid-infrared laser pulse instead of a near-infrared pulse. The current front end for mid-infrared pulse generation is a large research-grade titanium-sapphire laser amplifier. Fiber lasers constitute a promising technology for robust ultrafast systems in a compact footprint. In this project, we will make use of recent advances in ultrafast fiber laser design in combination with optical parametric amplification to convert the laser output to 2 micron wavelength for use in free-electron lasers or high harmonic generation. We will make use of the technique of crossed-polarized wave generation to remove the pedestals that tend to limit pulse duration in fiber lasers. We conducted simulations of the crossed-polarized wave pulse compression process to verify feasibility for 2 micron pulse compression. We also constructed a fiber oscillator operating in the all-normal dispersion regime, which allows high output power simultaneous with pulses that are compressible to sub-100 fs. This oscillator will form the front end of the amplifier to be built in Phase II. We plan to implement the fiber laser amplifier system we designed in the Phase I project. We expect to obtain 100fs, 250

* information listed above is at the time of submission.

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