The Collier Report of U.S. Government Contracting

Sampling of Federal Government Funding Actions/Set Asides

In order by amount of set aside monies.

• $99,996 - Tuesday the 31st of January 2012
  Department Of Army
  W6QK ACC-APG
  PERFORMANCE OF WORK IN ACCORDANCE WITH

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• $8,340 - Friday the 29th of June 2012
  National Institute Of Standards And Technology
  DEPT OF COMM/NAT INST STAND AND TECHNOL
  SINGLE PHOTON DETECTORS

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• $128,750 - Friday the 21st of September 2012
  Department Of Army
  W6QK ACC-APG ADELPHI
  10-BAR LASER DIODE STACK

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• $124,969 - Wednesday the 14th of November 2012
  National Aeronautics And Space Administration
  NASA SHARED SERVICES CENTER
  GROWING INTEREST IN PRECISE MEASUREMENTS OF METHANE CONCENTRATION AND DISTRIBUTION IN THE EARTH'S ATMOSPHERE IS STIMULATING EFFORTS TO DEVELOP LIDAR SYSTEMS IN THE SPECTRAL REGION OF 1.65 UM UTILIZING PATH DIFFERENTIAL ABSORPTION TECHNIQUES. THE KEY ELEMENT OF SUCH SYSTEMS IS A HIGH ENERGY OPTICAL SOURCE WITH GOOD BEAM PROPERTIES OPERATING IN THE VICINITY OF A METHANE ABSORPTION LINE. IN-BAND PUMPING Q-SWITCHED SOLID STATE LASERS (SSLS) BASED ON ER-DOPED ACTIVE MEDIA ARE GOOD CANDIDATES FOR THIS REQUIRED OPTICAL SOURCE. THE IN-BAND PUMPING OF SSLS ALLOWS FOR SHIFTING A SIGNIFICANT PORTION OF THE SYSTEM THERMAL LOAD FROM THE GAIN MEDIUM TO THE PUMP DIODES, THUS GREATLY REDUCING GAIN MEDIUM THERMAL DISTORTIONS DELETERIOUS TO SSL POWER SCALING WITH HIGH BEAM QUALITY. AS THE GOAL OF THIS SBIR PROGRAM, WE PROPOSE TO DEVELOP AN EFFICIENT Q-SWITCHED SSL WITH PULSE ENERGY>1 MJ AT 1000 HZ REPETITION RATE WITH IN-BAND LASER DIODE PUMPING OPERATING AT A WAVELENGTH OF 1651 NM WELL-MATCHED TO THE PRINCIPLE ABSORPTION BAND USED FOR THE DETECTION OF METHANE IN THE EARTH'S ATMOSPHERE. BASED ON GALLIUM GARNET GAIN MEDIA, THIS SSL WILL ALSO PROVIDE SUFFICIENT TUNABILITY FOR DIAL TECHNIQUES. WE WILL LEVERAGE LEGACY WORK CARRIED OUT AT PLI IN THE DEVELOPMENT OF HIGH ENERGY Q-SWITCHED ER:YAG SSLS WITH IN-BAND LASER DIODE PUMPING, AS WELL AS AN EXCELLENT LEGACY IN THE DESIGN AND MANUFACTURING OF THE PUMP LASER DIODES THEMSELVES.

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• $124,956 - Thursday the 15th of November 2012
  National Aeronautics And Space Administration
  NASA SHARED SERVICES CENTER
  FUTURE NASA LIDAR MISSIONS REQUIRE LOW NOISE AND LARGE AREA PHOTODETECTORS OPERATED AT SHORT-WAVE INFRARED (SWIR) WAVELENGTHS. SILICON AVALANCHE PHOTODIODES HAVE VERY LOW RESPONSIVITY FOR WAVELENGTH LONGER THAN 1.1 UM; AND WHILE INP-BASED APDS HAVE HIGH RESPONSIVITY IN THE SWIR REGION, THEY EXHIBIT HIGH NOISE EQUIVALENT POWERS (NEPS) DUE TO THE RELATIVELY HIGH EXCESS NOISE OF BULK INP MULTIPLICATION REGIONS. WE PROPOSE TO DEVELOP LOW-NOISE ANALOG APDS OPERATING IN THE SWIR REGION BY INCORPORATING IMPACT IONIZATION ENGINEERED STRUCTURES COUPLED WITH AN EPITAXIAL NEGATIVE FEEDBACK GAIN QUENCHING MECHANISM INTO THE MULTIPLICATION REGION OF LINEAR MODE APDS. THE GOAL IS TO DEVELOP LARGE-AREA (>250 UM DIAMETER), LOW-NOISE SWIR DETECTORS WITH HIGH QUANTUM EFFICIENCY (>75%), HIGH BANDWIDTH (~100 MHZ), AND VERY LOW NEP APPROACHING NASA TARGETS OF 20 FW/RT(HZ). IN ADDITION TO DISCRETE DEVICE CHARACTERIZATION, THESE DEVICES WILL BE INCORPORATED INTO PROTOTYPE LIDAR RECEIVERS FOR PERFORMANCE ASSESSMENT.

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