Optical power switch

Details Optical power switch Optical power switch

2007-08-21

2007-08-21

Hughes, Deandra M (Department: 3663)

Optical: systems and elements

Absorption filter

Fluid

Reexamination Certificate

active

07431170

ABSTRACT:
The present invention provides a protective device for sensitive infrared sensors as Forward Looking Infrared imagers (FLIRs). A prior device using materials with higher order susceptibilities to electric polarization, which provides protection against extremely intense radiation from high-power lasers is combined with a low energy optical power limiters such as the chalcogenide glass and the vanadium dioxide which respond reversibly to infrared radiation.

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patent: 303836 (1989-02-01), None
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Bobb, L.; “Active Optical Filter”; NTIS AP-0006403/0, filed May 30, 1979, pp. 1-10, Dept. of Army.
Orr et al; “Vo2Protective Devices”; NTIS AO-A2120181, 6/XAB; Jun. 1989, pp. 1-33, Tech Report.
Khoo, R C.; “Optical Thermal Induced . . . Interface”; Appl. Phys. Lett., vol. 40, #8, Apr. 15, 1982; pp. 645-647.

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