Phase conjugation method

Details Phase conjugation method Phase conjugation method

1985-12-16

1988-06-14

LaRoche, Eugene R.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350393, 250201, 356121, 364725, 364736, G02B 2600, G01J 120, G01J 100, G06F 738

Patent

active

047508183

ABSTRACT:
The use of large sensor and phase shifter arrays in phase conjugation adaptive systems is currently limited by the computational power conventionally employed to solve small arrays. Noting that in large arrays many of the derivatives of wavefront slopes are zero, then the properties of sparse matrix mathematics may be used to efficiently calculate the extent of movement of a particular actuator to deform a mirror and thus compensate for phase distortions in an incoming wavefront. Apparatus and methods are provided for handling such large arrays.

REFERENCES:
patent: 4091274 (1978-05-01), Angelbeck et al.
patent: 4181973 (1980-01-01), Tseng
patent: 4438330 (1984-03-01), Hardy
patent: 4447886 (1984-05-01), Meeker
patent: 4547662 (1985-10-01), Cornwell
Pearson et al., "Experimental Studies of a Deformable-Mirror Adaptive Optical System" J. Opt. Soc. Am., vol. 67, No. 3, Mar. 1977, pp. 325-333.

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