Optical modulator with ringing suppression

Details Optical modulator with ringing suppression Optical modulator with ringing suppression

1979-05-11

1980-09-09

Corbin, John K.

350149, G02F 103

Patent

active

042214637

ABSTRACT:
Ringing caused by acoustic resonances in an electro-optical crystal modulator and commencing at the trailing edge of a pulse may be suppressed by the combination of a second electro-optical crystal and a polarizer. The polarization of the ringing passing through the second crystal is rotated 90.degree. by applying an appropriate voltage to the second crystal at the trailing edge of the pulse. The polarizer, properly oriented, then blocks the ringing. The crystals may comprise such materials as Cadmium Telluride or Gallium Arsenide.

REFERENCES:
patent: 2753763 (1956-07-01), Haines
patent: 3443857 (1969-05-01), Warter
patent: 3572897 (1971-03-01), Bousky
patent: 3653743 (1972-04-01), Kiefer et al.
patent: 3663091 (1972-05-01), Lee

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