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Single Frequency Lasers for Space-Based Wind and Aerosol Lidar

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX09CB26C
Agency Tracking Number: 074730
Amount: $898,548.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: S1.01
Solicitation Number: N/A
Solicitation Year: 2007
Award Year: 2009
Award Start Date (Proposal Award Date): 2009-03-10
Award End Date (Contract End Date): 2012-01-31
Small Business Information
510 Herndon Parkway
Herndon, VA 20170-5225
United States
DUNS: 107940207
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Floyd Hovis
 Principal Investigator
 (703) 471-7671
Business Contact
 Floyd Hovis
Title: Assistant Vice President
Phone: (703) 956-3626
Research Institution

Stable, single-frequency cw lasers operating at 2 µm and at 1064/532/355 nm are needed in a number of lidar systems that are being planned for NASA airborne and space-based lidar systems. These include the following.
1. Direct Detection Doppler Wind Lidar systems that operate at 355 nm.
2. Coherent Wind Lidar systems that operate at 2 µm.
3. High Spectral Resolution Lidar systems that operate at 1064/532/355/nm.
4. Ozone DIAL systems.

At least two missions that have been recommended by the NRC Earth Science Decadal Survey will need the technology that we propose to develop. These are the 3D-Winds mission and the ACE (Aerosol/Clouds/Ecosystems) mission.

In our Phase 1 SBIR we successfully completed proof of principle demonstrations of the desired cw single-frequency lasers. Our approach for the 2 µm source was a compact linear resonator that demonstrated 65 mW of single frequency output compared to a goal of 20 mW. Our approach for the 1064/532/355 nm source was intracavity second and third harmonic generation in a compact 1064 nm ring laser that demonstrated simultaneous single-frequency outputs of 520 mW at 1064 nm, 240 mW at 532 nm, and 1.9 mW at 355 nm. The goal was > 1 mW at 355 nm. For Phase 2 we propose to build more hardened engineering demonstration units of the lasers, to develop electronics that could be readily transitioned to radiation hardened designs, and to demonstrate a frequency locking module for the 1064/532/355 nm source. We expect both lasers to be at a TRL of 5 at the completion of the Phase 2 work.

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

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