Efficient High Power 2 micron Tm3+-Doped Fiber Laser

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNL05AA13C
Agency Tracking Number: 034307
Amount: $599,528.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solicitation Year: 2003
Solicitation Topic Code: E1.02
Solicitation Number: N/A
Small Business Information
9030 S. Rita Road, Tucson, AZ, 85747-9102
DUNS: 014750785
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Shibin Jiang
 Principal Investigator
 (520) 799-7407
 jiang@npphotonics.com
Business Contact
 James Fountain
Title: Business Official
Phone: (520) 799-7424
Email: fountain@npphotonics.com
Research Institution
N/A
Abstract
This proposal is for the development of new Tm3+ doped germanate glass fibers for efficient high power 2-micron fiber lasers capable of generating an output power of up to hundreds watts. We propose to use Tm3+ doped germanate glass fibers because silica glass fiber is not the ideal host for lasers at wavelength of 2-micron and longer. Germanate glass exhibits lower phonon energy compared to silica glass, increasing the quantum efficiency of 3F4 level of Tm3+ ions. Importantly, Tm3+ can be highly doped into germanate glasses, which results in so called cross-relaxation, dramatically improving the quantum efficiency. We will develop double-clad single mode germanate glass fibers with greater than 6wt% Tm3+ concentration to take full advantages of this Tm3+ cross-relaxation process, developing highly efficient fiber lasers at 2-micron. This type of fiber laser is useful for LIDAR applications, can also be used to pump Ho3+ doped crystals to generate extremely high power 2-micron lasers.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government