Radiation-hardened RLG readout

Details Radiation-hardened RLG readout Radiation-hardened RLG readout

2005-07-05

2005-07-05

Scott, Jr., Lēon (Department: 2828)

Coherent light generators

Particular resonant cavity

Folded cavity

C356S329000

Reexamination Certificate

active

06914929

ABSTRACT:
A diffractive optical element is interposed between the exit beams from a ring laser gyro readout and the photodetectors for detecting such beams. The diffractive optical element permits the use of photodetectors much reduced in size in order to minimize gyro performance degradation due to radiation.

REFERENCES:
patent: 3577094 (1971-05-01), Tomilinson
patent: 4271397 (1981-06-01), Stiles et al.
patent: 4559500 (1985-12-01), McDermid et al.
patent: 5359414 (1994-10-01), Howard et al.
patent: 5430543 (1995-07-01), Howard
“Method of Fabricating High Efficiency Binary Planar Optical Elements”.
“Binary Lenses for Use at 10.6 Micrometers”, by Swanson et al., Optical Engineering, Sep./Oct. 1985, vol. 24, No. 5.
“The Phase Fresnel Lens” by Miyamoto, Journal of the Optical Society of America, vol. 51, No. 1, Jan. 1961.
“Optics”, by Hecht et al., Addison-Wesley Publishing Company.

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