High-Power, High-Efficiency 1.907nm Diode Lasers

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNL07AA08C
Agency Tracking Number: 054017
Amount: $599,696.00
Phase: Phase II
Program: SBIR
Awards Year: 2007
Solicitation Year: 2005
Solicitation Topic Code: S6.02
Solicitation Number: N/A
Small Business Information
nLight Photonics
5408 NE 88th Street, Building E, Vancouver, WA, 98665-0990
DUNS: 799811646
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Steve Patterson
 Principal Investigator
 (360) 713-5182
 steve.patterson@nlight.net
Business Contact
 David Gustafson
Title: Manager Advanced Tech Programs
Phone: (360) 566-4471
Email: david.gustafson@nlight.net
Research Institution
N/A
Abstract
nLight developed high-power, high-efficiency laser diodes emitting at 1907nm for the pumping of solid-state lasers during the Phase I. The innovation brought to bear at 19-xxnm wavelengths nLight's design knowledge and experience from its highly successful 9xx-nm and 14xx-nm, high-efficiency and high-power laser diode programs. The expected performance for the laser at the conclusion of the phase I was 25% electrical-to-optical (E/O) conversion efficiency and 18 W continuous-wave power (CW) - both measured at 15C. The program was highly successful in achieving performance of 25W and 23% efficiency at 20C (5C warmer than projection). Such lasers meet the brightness and power requirements for the direct pumping of the quasi 4-level 5I7 to 5I8 transition in singly-doped Ho:YAG lasers. This work can readily be extended to 18xx-nm and 20xx-nm with comparable performance for application to the pumping of other solid-state lasers.

* information listed above is at the time of submission.

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