NASA SBIR 2004 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER: 04 E1.02-8978
SUBTOPIC TITLE: Lidar Remote Sensing
PROPOSAL TITLE: Compact 2 micron seed laser

SMALL BUSINESS CONCERN (Name, E-mail, Mail Address, City/State/Zip, Phone)
NP Photonics, Inc.
9030 S. Rita Road
Tucson , AZ 85747-9102
(520)799-7424

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Shibin Jiang
jiang@npphotonics.com
9030 S. Rita Road Ste 120
Tucson, AZ 85747-9102
(520)799-7407

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
This proposal is for the development of new compact, high power and extremely reliable 2 micron seed laser using newly developed Tm3+ doped germanate glass fibers, which exhibit high quantum efficiency. This type of fiber based seed laser is needed for constructing high energy pulsed 2 micron Ho-doped crystal lasers for LIDAR applications. We propose to use highly Tm3+ doped germanate glass fibers with high gain per unit length to form a short linear cavity to generate single frequency fiber laser operation. 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 gain per unit length and the quantum efficiency. The single frequency fiber laser will be used to construct seed lasers by integrating with controlling electronics.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)

This fiber based seed laser can be used to generate high energy pulsed 2 micron Ho-doped crystal lasers, which are generally used for LIDAR applications in NASA. This proposed device is much more reliable compared to existing technology in NASA's touch operating environment.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
This single frequency 2 micron fiber laser and seed laser can be used for many commercial applications, especially for fiber optic sensor where a long coherence light source is needed.