SBIR/STTR Research Award
High-Power, High-Efficiency 1.907nm Diode Lasers
Award amount
$69,675Program and phase
SBIR · Phase IAward year
2006Award details
- Awarding agency
- National Aeronautics and Space Administration
- Branch
- Not reported
- Recipient company
- nLight Photonics
- Proposal award date
- 2006-01-27
- Contract end date
- 2006-07-24
- UEI
- L7A6MYHETLS6
- Solicitation number
- Not reported
- Topic code
- S6.02
Research abstract
nLight proposes to develop high-power, high-efficiency laser diodes emitting at 1907nm. Performance is expected to improve from the current state-of-the-art technology at 15C of 20% electrical-to-optical (E/O) conversion efficiency and 11.5W continuous-wave power (CW) to 25% E/O efficiency and 18W of CW power at the conclusion of Phase I. At the conclusion of Phase II, these values are expected to improve to 38% E/O efficiency and greater than 35W CW power. Quasi-CW power will be >>100W per laser bar. 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. Compared to the diode-pumping of Thulium-sensitized Ho:YAG, direct diode pumping of Ho:YAG takes advantage of Holmium's much larger emission cross section, the absence of Ho:Tm up conversion, and Ho:YAG's large energy storage lifetime. Direct diode pumping of Ho:YAG also results in decreased system size, weight and complexity and an improvement in overall system efficiency when compared to pumping with a diode-pumped Th:YAG laser, all critical metrics for space and airborne platforms. This work could be extended to 18xxnm and 20xxnm quite readily with comparable power and efficiency performance.
Technology keywords
Not reported
Other awards by this recipient
Verified by the same UEI. These are other public SBIR/STTR award pages, not a merged company record.
- Wavelength Stabilized Two Dimensional External Cavity Arrays for Pumping Alkali Vapor Laser Systems
- High-Efficiency Resonantly Pumped 1550-nm Fiber-Based Laser Transmitter
- High-Efficiency, High-Temperature Laser Diodes for Naval High-Energy Laser Applications
- Compact, Rugged, Multiple Spectral Band Laser
- Multi-kW Fiber Lasers Based on Novel Light Guide Combiners
Awards with the same topic code
Verified by an exact topic code match. This is not a text-similarity match.
- Automated Semantic Enrichment for Data Discovery and Decision Support
- Automated Semantic Enrichment for Data Discovery and Decision Support
- Cloud-Based Crowdsourced Semantic Social Mobile App for Disaster Response
- A Robust Real-Time Collaboration Technology for Decision Support in Multi-Platform Virtual Globe Environments
- Distributed GIS Computing for High Performance Simulation and Visualization
Research funding history
56 SBIR/STTR records share this UEI (2004–2013). Reported award amounts total $18,993,588. Reported amounts are not federal obligations.
Phases: Phase I, Phase II
Agencies: Department of Defense, National Aeronautics and Space Administration, Department of Energy