Second order birefringent acousto-optic device

Details Second order birefringent acousto-optic device Second order birefringent acousto-optic device

1976-11-05

1978-10-03

Larkins, William D.

G02F 133

Patent

active

041181131

ABSTRACT:
An acousto-optic deflector that utilizes second order diffraction in a birefringent crystal provides doubled resolution while maintaining high diffraction efficiency. For the second order birefringent deflector employing a paratellurite crystal, 1200 spot resolution was achieved with a 24 MHz bandwidth and 25 .mu. sec access time. This maximum number of spots is twice that obtainable in a conventional first order acousto-optic deflector.

REFERENCES:
patent: 4037933 (1977-07-01), Yano et al.
Warner et al., "Acousto-optic light deflectors using...paratellurite", J. Appl. Physics., vol. 43, No. 11, Nov. 1972, pp. 4489-4496.
Yano et al., Appl. Phys. Letters, vol. 26, No. 12, pp. 689-691, 15 Jun., 1975.

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