Electro-optic sampler
First Claim
1. An electro-optic sampler comprising a body of semiconductor material that can be energized to emit light in two opposite directions, first photodetector means, second photodetector means, first and second bodies of electro-optic material defining respective waveguides for transmitting light emitted by the semiconductor device in said first and second directions to the first photodetector means and the second photodetector means respectively, and first and second pairs of electrodes associated with the first and second bodies of electro-optic material for establishing an electrical field within the respective bodies of electro-optic material.
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Accused Products
Abstract
An electro-optic sampler comprises a body of semiconductor material that can be energized to emit polarized light, a photodetector device for generating an electrical output signal representative of the intensity with which light polarized in a predetermined manner is incident on the photodetector device, and a body of electro-optic material defining an optical waveguide for transmitting light from the source of polarized light to the photodetector. First and second electrodes are provided for establishing an electrical field within the body of electro-optic material. The body of electro-optic material has a spherical index ellipsoid when the first and second electrodes are at the same potential and otherwise has a non-spherical index ellipsoid.
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Citations
18 Claims
- 1. An electro-optic sampler comprising a body of semiconductor material that can be energized to emit light in two opposite directions, first photodetector means, second photodetector means, first and second bodies of electro-optic material defining respective waveguides for transmitting light emitted by the semiconductor device in said first and second directions to the first photodetector means and the second photodetector means respectively, and first and second pairs of electrodes associated with the first and second bodies of electro-optic material for establishing an electrical field within the respective bodies of electro-optic material.
- 4. An error sampler comprising a source of polarized light, a strobe generator for pulsing the source of polarized light, a photodetector for generating an electrical signal representative of the intensity with which light polarized in a predetermined manner is incident on the photodetector, a body of electro-optic material defining an optical waveguide for transmitting light from the source of polarized light to the photodetector, first and second electrodes for establishing an electrical field within the body of electro-optic material, said first electrode being connected to receive an electrical input signal to be sampled, and feedback means for applying the signal generated by the photodetector in response to a first optical pulse to the second electrode at the time of application of a second optical pulse, so that the electro-optic material is electrically stressed to an extent dependent on the difference between the amplitude of the input signal at the time of the first optical pulse and the amplitude of the input signal at the time of the second optical pulse.
- 10. An electro-optic sampler comprising a body of semiconductor material that can be energized to emit polarized light, a photodetector for generating an electrical output signal representative of the intensity with which light polarized in a predetermined manner is incident on the photodetector, a body of electro-optic material defining an optical waveguide for transmitting light from the body of semiconductor material to the photodetector, and first and second electrodes for establishing an electrical field within the body of electro-optic material, the body of electro-optic material having a spherical index ellipsoid when the first and second electrodes are at the same potential and otherwise having a non-spherical index ellipsoid.
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18. An electro-optic sample comprising a body of semiconductor material that can be energized to emit polarized light, a photodetector for generating an electrical output signal representative of the intensity with which light polarized in a predetermined manner is incident on the photodetector, a body of electro-optic material defining an optical waveguide for transmitting light from the body of semiconductor material to the photodetector, and first and second electrodes for establishing an electrical field within the body of electro-optic material, the index ellipsoid of the body of electro-optic material being circular in cross-section perpendicular to the direction of transmission of light by the waveguide when the first and second electrodes are at the same potential and otherwise being non-circular in cross-section.
Specification