Shipboard Atmospheric Propagation Measurements

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00164-06-C-6031
Agency Tracking Number: O053-D06-4141
Amount: $99,891.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2005
Solicitation Topic Code: OSD05-D06
Solicitation Number: 2005.3
Small Business Information
DUNS: 106771140
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Principal Investigator
 (617) 547-1122
Business Contact
 Jonah Jacob
Title: President
Phone: (617) 547-1122
Research Institution
Directing a high-power laser (HPL) beam through the atmosphere onto a distant target is limited by atmospheric absorption of the laser light, which causes thermal blooming and wavefront distortions that are difficult to correct. In the near-IR there are three atmospheric windows, in which atmospheric absorption is relatively weak, at wavelengths near 1 micron, 1.6 micron and 2.2 microns. The selection of the operating wavelength and requisite power level of an HPL that is designed to be directed through the atmosphere requires detailed measurement of atmospheric absorption as a function of wavelength by both molecules and aerosols. SRL proposes to develop an absorptometer that accurately measures the absorption of laser beams in the atmosphere in these windows and is insensitive to scattering losses. The instrument, which will utilize sensitive interferometry, will be capable of measuring both gas constituents and naturally occurring aerosols in both laboratory anid field experiments, with the objective of delivering a measurement system that can be used on a shore-based site and on a seagoing vessel. In Phase I SRL will complete a conceptual formulation and design of a system that can measure the absorption of a low-power laser beam by atmospheric gases and naturally occurring aerosols in a laboratory and maritime environment. In Phase II SRL will design, fabricate, test and deliver a robust aerosol-laden-air measurement system.

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

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