Electrooptical switch and modulator

Details Electrooptical switch and modulator Electrooptical switch and modulator

1987-08-13

1989-04-11

LaRoche, Eugene R.

350 9614, 350 9615, 350355, 350356, G02F 101, G02B 610, G02B 626, G02B 642

Patent

active

048200093

ABSTRACT:
A directional coupler having two coupled waveguides that receive a single optical input through a Y-junction power splitter, and two outputs from the coupled waveguides. Electrodes positioned over the coupled waveguides apply opposite electric fields to the waveguides and, through the electrooptical effect, modulate the optical outputs. For a zero applied voltage and zero electric field, the outputs are both equal to approximately half of the maximum possible output intensity, and no bias voltage is needed for operation as a modulator. As the voltage is varied from zero, positively or negatively, the optical intensity from either of the outputs varies linearly over a useful range. Moreover, the voltage required to switch full power from one output to the other is less than that required for conventional electrooptical modulators or switches.

REFERENCES:
patent: 4012113 (1977-03-01), Kogelnik et al.
patent: 4690488 (1987-09-01), Gee et al.
Matsui et al. "Optical Branch for Optical Data Distribution" The Transaction of the IECE of Japan, vol. E60, No. 3, Mar. 1977.

Affiliated with

Also associated with

Rating

Electrooptical switch and modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrooptical switch and modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrooptical switch and modulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-662100