High-Efficiency, High-Temperature Laser Diodes for Naval High-Energy Laser Applications

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68936-13-C-0121
Agency Tracking Number: N121-013-1178
Amount: $149,426.00
Phase: Phase II
Program: SBIR
Awards Year: 2013
Solicitation Year: 2012
Solicitation Topic Code: N121-013
Solicitation Number: 2012.1
Small Business Information
WA, Vancouver, WA, 98665-0990
DUNS: 799811646
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Zhigang Chen
 Princpal Investigator
 (360) 566-4460
Business Contact
 Huimin Huang
Title: Staff Accountant
Phone: (360) 566-4660
Email: huimin.huang@nlight.net
Research Institution
Based on the promising results obtained under Navy Phase I SBIR funding, nLight proposes a Phase II continuation toward the development of fiber-coupled high power and high efficiency diode laser pumps around 975 nm that operate at high ambient temperatures. Under the Phase I SBIR base program, nLight designed, demonstrated, and delivered to Navy a 30-W, 975-nm fiber-coupled (200µm / 0.15 NA) laser module with fiber-coupled power conversion efficiency of>63% at 25°C. This is achieved through diode laser epitaxy design optimization, improvement in heatsink thermal resistance for lower diode junction temperature, and improvement in the optical-to-optical fiber-coupling efficiency of the diode laser pump. In the proposed Phase II effort, nLight will address the key area of required improvement high temperature operation while maintaining high efficiency and scaling up power. At the end of the Phase II base program, nLight will deliver to Navy (or a recipient of its choosing) a 25-W, 975-nm fiber-coupled (200µm/0.22 NA) laser module with a power conversion efficiency of>57% at 70°C. At the end of the Phase II option program, nLight will deliver to Navy a>100W, 975-nm fiber-coupled (200µm/0.22 NA) laser module with>70% conversion efficiency at 70°C.

* 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