Coherent light generators – Particular component circuitry – Optical pumping
Patent
1986-05-20
1987-12-29
LaRoche, Eugene R.
Coherent light generators
Particular component circuitry
Optical pumping
350353, 372 21, 372 99, 332 751, G02B 523, G02F 101
Patent
active
047156899
ABSTRACT:
A phase conjugate resonator (PCR) employing at least one phase conjugate mirror (PCM) provides high resolution spatial detection of individual locations in a two-dimensional optical array which exceed or fall below a threshold level. In one embodiment the optical intensity profile under investigation is imposed either onto one or both of the pump beams of a degenerate four-wave mixing PCM. In another embodiment a pair of PCMs are used as the two mirrors forming the PCR, with the pump beams for one PCM modulated and the pump beams for the other PCM serving as a threshold reference. In either case, the spatially modulated optical output may be read out with multiple detectors or an imaging system, or the cumulative area output of the PCR can be read out with a single detector to characterize the intensity profile relative to the threshold.
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Lind Richard C.
O'Meara Thomas R.
Duraiswamy V. D.
Hughes Aircraft Company
Karambelas A. W.
LaRoche Eugene R.
Laslo V. G.
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