DEVELOPMENT OF A MODE-LOCKED TI:SAPPHIRE LASER

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 10127
Amount: $49,471.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
45 Winthrop St, Concord, MA, 01742
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr David Welford
 (508) 371-2299
Business Contact
Phone: () -
Research Institution
N/A
Abstract
ADVANCES IN THE DEVELOPMENT OF TUNABLE SOLID-STATE LASER MATERIALS FOR THE NEAR-INFRARED PROVIDES US WITH THE OPPORTUNITY TO DEVELOP A CLASS OF HIGH PERFORMANCE LASER SYSTEMS THAT OVER-COME THE LIMITATIONS OF PRESENTLY AVAILABLE DYE LASERS. IN PARTICULAR, THE BROADLY TUNABLE TI:AL(2)O(3) SYSTEM IS ATTRACTIVE AS A NEAR-INFRARED DYE LASER SUBSTITUTE THAT OPERATES FROM 680 NM TO 1000 NM WHEN AR(+)-ION LASER PUMPED. THE SUBJECT OF THIS PROPOSAL IS THE DEVELOPMENT OF A NOVEL MODE-LOCKING TECHNIQUE FOR THE TI:AL(2)O(3) LASER THAT WILL PROVIDE A SOURCE OF PICOSECOND/SUBPICOSECOND DURATION PULSES OVER THE ENTIRE LASER TUNING RANGE OF 680 NM TO 1000 NM. WE PROPOSE INTRODUCING A NONLINEAR REFLECTOR INTO A LOSS MODULATED CW MODELOCKED LASER. AN ANALOGY MAY BE DRAWN BETWEEN THE USE OF A SATURABLE OBSORBER IN HYBRID-MODELOCKING OF DYE LASERS AND THE USE OF THE NONLINEAR REFLECTOR FOR THE TIAL(2)O(3) LASER. THE SATURABLE ABSORBER IS A NONLINEAR ELEMENT WITH INCREASING TRANSMISSION AS A FUNCTION OF INCREASING INCIDENT INTENSITY. OUR NONLINEAR REFLECTOR IS A GERMANIUM OPTICAL FLAT WITH INCREASING REFLECTIVITY AS A FUNCTION OF INCREASING INCIDENT INTENSITY. BOTH NONLINEAR DEVICES ARE CAPABLE OF PROVIDING PULSE COMPRESSION IN A SUITABLE RESONATOR CONFIGURATION WITH A GAIN MEDIUM. THE NONLINEAR REFLECTOR THAT SHOULD PROVIDE US WITH A BROAD-BANDWIDTH INTRACAVITY PULSE COMPRESSION ELEMENT WITH SUPERIOR DURABILITY. SUCCESSFUL OPERATION WOULD PROVIDE THE PROOF OF CONCEPT NECESSARY FOR FURTHER DEVELOPMENT OF A SCIENTIFIC INSTRUMENT.

* 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