Fiber-Optic Phase Shifting Interferometer

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,995.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
HQ0006-07-C-7741
Agency Tracking Number:
B063-025-0134
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
LUMINIT, LLC
20600 Gramercy Place, Suite 203, Torrance, CA, 90501
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
612439146
Principal Investigator:
Fedor Dimov
Director of Research and Developmen
(310) 320-1066
kyu@luminitco.com
Business Contact:
Engin Arik
President and CEO
(310) 320-1066
earik@luminitco.com
Research Institution:
n/a
Abstract
To address the MDA need for non-destructive evaluation and detection of surface and subsurface defects in aspheric telescope SiC mirrors, Luminit, LLC proposes to develop a new Fiber Optic Phase Shifting Interferometer (FOPSI). The proposed FOPSI is a non-contact real-time in situ surface roughness monitoring system based on an innovative, modular, highly sensitive interferometer consisting of a movable sensor head and a rapid non-mechanical phase shifting module, using single mode fibers to generate the reference and object waves. A high-speed camera in the sensor head captures a sequence of consecutive interferograms within sub-millsecond time intervals, which are then used to reconstruct the surface profile so that real-time image processing software can detect defects. The lightweight sensor head (<1 kg) can be easily positioned for in situ monitoring and evaluation of a SiC mirror in production. In Phase I Luminit will develop a proof-of-principle FOPSI and demonstrate the feasibility of mapping the surface profile in <5 minutes and detecting defects within 1 micron of a typical 10 inch SiC aspherical mirror surface with an accuracy of 5 nm rms. In Phase II Luminit will develop a full functioning FOPSI for in situ monitoring and evaluation of aspheric telescope SiC mirrors.

* information listed above is at the time of submission.

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