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US 6,785,430 B2Granted
Method and apparatus for integrating an optical transmit module
AssigneeIntel Corporation
InventorMario J. Paniccia
Life of this patent
Estimating the term…
Abstract
An optical transmit module. In one aspect of the present invention, an optical beam is generated with a gain medium disposed in a semiconductor substrate. A tunable Bragg grating also disposed in the semiconductor substrate may be optically coupled to the gain medium to tune an output wavelength of the optical beam. The semiconductor substrate further includes an optical modulator optically coupled to receive the optical beam. The optical modulator is coupled to modulate the optical beam in response to a modulation signal.
Claims29
An apparatus, comprising:
- a gain medium disposed in a semiconductor substrate;
- a tunable Bragg grating disposed in the semiconductor substrate, the tunable Bragg grating optically coupled to the gain medium so as to tune an output wavelength of an optical beam generated from the gain medium;
- and
- an optical modulator disposed in the semiconductor substrate, the optical modulator optically coupled to receive the optical beam, the optical modulator including a plurality of capacitors having charge modulated regions in the semiconductor substrate, wherein the optical beam is directed through the semiconductor substrate and through the charge modulated regions of the capacitors, the charge modulated regions of the capacitors in the semiconductor substrate to modulate the optical beam generated from the gain medium in response to a modulation signal.
1 more element
A. A method, comprising:
- generating an optical beam with a gain medium disposed in a semiconductor substrate;
- tuning an output wavelength of the optical beam with a tunable Bragg grating disposed in the semiconductor substrate optically coupled to the gain medium;
- and
- modulating the optical beam with an optical modulator disposed in the semiconductor substrate in response to a modulation signal by directing the optical beam through the semiconductor substrate and through charge modulated regions of a plurality of capacitors included in the optical modulator.
1 more element
An optical communications system, comprising:
- an optical transmit module disposed in a semiconductor substrate, the optical transmit module including:
- a gain medium disposed in the semiconductor substrate;
- a tunable Bragg grating disposed in the semiconductor substrate, the tunable Bragg grating optically coupled to the gain medium so as to tune an output wavelength of an optical beam generated from the gain medium;
- and
- an optical modulator disposed in the semiconductor substrate, the optical modulator optically coupled to receive the optical beam, the optical modulator including a plurality of capacitors having charge modulated regions in the semiconductor substrate, wherein the optical beam is directed through the semiconductor substrate and through the charge modulated regions of the capacitors, the charge modulated regions of the capacitors in the semiconductor substrate to modulate the optical beam generated from the gain medium in response to a signal;
- a multiplexer optically coupled to receive a plurality of optical beams generated in the semiconductor substrate, wherein the optical beam generated from the gain medium is one of the plurality of optical beams generated in the semiconductor substrate, the multiplexer to multiplex the plurality of optical beams into a single wave division multiplexed (WDM) optical beam;
- a demultiplexer optically coupled to receive the WDM optical beam through an optical fiber, the demultiplexer to demultiplex the WDM optical beam back into the plurality of optical beams;
- and
- a plurality of optical receivers, each of the optical receivers optically coupled to receive a respective one of the plurality of optical beams.
6 more elements
Dependencies are inferred from the claim text.