Acousto-optic tunable bandpass filter with strong sideband suppr

Details Acousto-optic tunable bandpass filter with strong sideband suppr Acousto-optic tunable bandpass filter with strong sideband suppr

1988-04-27

1990-01-30

LaRoche, Eugene R.

G02F 111

Patent

active

048969494

ABSTRACT:
A method and apparatus for improving the bandpass characteristic of an acousto-optic tunable filter in which two optically birefringement crystal parts are oriented so that their respective optic axes are tilted with respect to each other. The amount of tilt as well as the angle of incidence to the first part is selected so as to subject the light to a first bandpass characteristic in a first part of the crystal and a second bandpass characteristic in a second part of the crystal such that the bandpass characteristics have a common center frequency. When the bandpass characteristics have a ratio of 1.5, sideband suppression is significantly improved.

REFERENCES:
patent: 3729250 (1973-04-01), Kustere et al.
patent: 3729251 (1973-04-01), Hearn
patent: 3759603 (1973-09-01), Eschler
patent: 3928814 (1975-12-01), Feichtner
patent: 4040722 (1977-08-01), Nielson
patent: 4052121 (1977-10-01), Chang
patent: 4110016 (1978-08-01), Berg et al.
patent: 4206347 (1980-06-01), Avicola
patent: 4602852 (1986-07-01), Moroz
patent: 4639092 (1987-01-01), Gottlieb
patent: 4653869 (1967-03-01), Gottlieb

Affiliated with

Also associated with

Rating

Acousto-optic tunable bandpass filter with strong sideband suppr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acousto-optic tunable bandpass filter with strong sideband suppr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acousto-optic tunable bandpass filter with strong sideband suppr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1920553