SBIR/STTR Research Award
MULTIPLE DIODE PUMPED HO:TM:YAG PLANAR RING LASER
Award amount
$496,004Program and phase
SBIR · Phase IIAward year
1991Award details
- Awarding agency
- National Aeronautics and Space Administration
- Branch
- Not reported
- Recipient company
- Electro-optics Technology, Inc
- Proposal award date
- Not reported
- Contract end date
- Not reported
- UEI
- Not reported
- Solicitation number
- Not reported
- Topic code
- Not reported
Research abstract
WE PROPOSE TO USE MULTIPLE DIODE PUMPING OF A PLANAR MONOLITHIC HL:TM:YAG RING LASER TO REALIZE A PRACTICAL, HIGHPOWER, SINGLE FREQUENCY, ROOM TEMPERATURE LASER @2.1UM. MULTIPLE DIODE PUMPING ENSURES HIGH GAIN IN ALL REGIONS OF THE LASING PATH. THIS DISTRIBUTED HIGH GAIN ELIMINATES REABSORPTION LOSSES IN THE HO:TM:YAG THREE LEVEL LASER. DIODE PUMPED RING LASERS OFFER ADVANTAGES OVER CO2 LASERS. HO:TM:YAG RING LASERS BY VIRTUE OF THEIR MONOLITHIC STRUCTURE ARE INHERENTLY COMPACT, RELIABLE AND LIGHTWEIGHT. LIFETIMES APPROACHING 20,000 HOURS, EFFICIENCIES GREATER THAN 10% AND FREQUENCY STABILITIES BETTER THAN 10KHZ ARE ALL POSSIBLE WITH DIODE PUMPING. REDUNDANCY OF CRITICAL DIODE PUMPS PRECLUDES "HARD FAILURES". UNLIKE NONPLANAR ND:YAG RING LASERS AT 1.06UM, HO:TM:YAG LASERS AT 2.1UM ARE EYE-SAFE AND SHOULD FIND APPLICATION AS TRANSMITTERS IN NASA'S CW AND PULSED COHERENTLASER RADAR SYSTEMS.
Technology keywords
Not reported