Modulator for electrical signals processed in a laser-acoustic d

Details Modulator for electrical signals processed in a laser-acoustic d Modulator for electrical signals processed in a laser-acoustic d

1973-08-30

1976-03-09

Wilbur, Maynard R.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

350160R, 343 171R, G02F 118, H01J 314

Patent

active

039434648

ABSTRACT:
Either of two beams of coherent light has components which are phase shifted and/or attenuated; the phase shifting is alternatively provided in different embodiments by (a) transmitting the coherent light through a phase plate (which may be of variable opacity); (b) processing the coherent light in a second laser-acoustic delay line through which an acoustic wave has been transmitted, or (c) providing in the laser acoustic delay line two acoustic traveling waves, one of which interacts at the Bragg angle with the coherent light. An interaction at the Bragg angle between either of the light beams and a traveling wave generated in a laseracoustic delay line by an electrical rf signal provides a diffracted light beam having a frequency equal to the sum of the light beam frequency and that of the rf signal. A photodetector heterodynes the two light beams thereby providing a modulated rf signal with phase or amplitude modulation in accordance with the phase shift or attenuation of either of the light beams.

REFERENCES:
patent: 2943315 (1960-06-01), Rosenthal
patent: 3055258 (1962-09-01), Nurvitz
patent: 3088113 (1963-04-01), Rosenthal
patent: 3539245 (1970-11-01), Brienza
patent: 3544806 (1970-12-01), DeMaria et al.
patent: 3571507 (1971-03-01), Korpel
patent: 3573449 (1971-04-01), Maloney
patent: 3700910 (1972-10-01), Smith
patent: 3745353 (1973-07-01), Jernigan et al.
patent: 3821548 (1974-06-01), Jernigan

Affiliated with

Also associated with

Rating

Modulator for electrical signals processed in a laser-acoustic d does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modulator for electrical signals processed in a laser-acoustic d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulator for electrical signals processed in a laser-acoustic d will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-835993