Optoelectronic circuit and a method for the transmission of an optical clock signal
AssigneeRohde & Schwarz GmbH & Co. KG
InventorsGerhard Kahmen, Ingo Dettmann
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Abstract
An optoelectronic circuit for transmitting an optical clock signal to an electronic component contains a clock-generating device for the generation of an optical clock signal, a converter element for the conversion of the optical clock signal into an electrical clock signal supplied to the electronic component and an optical line from the clock-generating device to the conversion element. The optoelectronic circuit in this context provides a delay time of the optical clock signal from the clock-generating device to the conversion element. The optoelectronic circuit accordingly comprises an adjustable optical element for adjusting the delay time between the clock-generating device and the electronic component.
Claims11
An optoelectronic device comprising:
- at least two optoelectronic circuits;
- at least two electronic components;
- a regulating device for controlling delay times of the at least two optoelectronic circuits;
- a clock-generating device for generating optical clock signals;
- a converter element for converting the optical clock signals into electrical clock signals supplied to the at least two electronic components;
- and
- an optical line from the clock-generating device to the converter element,
- wherein the at least two optoelectronic circuits provide adjustable optical elements for adjusting a delay time between the clock-generating device and the at least two electronic components,
- wherein the regulating device controls a compensation of a temperature gradient within the at least two optoelectronic devices by the adjustable optical elements,
- wherein the optoelectronic device is a sampling circuit, wherein the optoelectronic device comprises sample-and-hold elements as the at least two electronic components, to which the at least two optoelectronic circuits transmit the electrical clock signals,
- wherein the delay times of the at least two optoelectronic circuits are set in such a manner that different sampling times of the sample-and-hold elements are achieved with whole-number divisors of a clock period, and
- wherein the regulating device controls a fine-tuning of the sampling times by adjusting the delay times of the at least two optoelectronic circuits.
A method for transmitting an optical clock signal to an electronic component, comprising the following steps:
- generating the optical clock signal,
- converting the optical clock signal into an electrical clock signal supplied to the electronic component, and
- supplying the optical clock signal via an optical line for conversion into the electrical clock signal,
- wherein the optical clock signal is provided with a delay time from the optical clock signal generation to the electronic component,
- wherein the delay time is adjusted,
- wherein the delay time is regulated,
- wherein a temperature gradient within the electronic component is compensated,
- wherein the method serves for transmission of a clock signal in a sampling circuit of the electronic component,
- wherein the electronic component, to which the optical clock signal is transmitted, comprises sample-and-hold elements, and
- wherein sampling times of the sample-and-hold elements are obtained with whole-number divisors of every clock period.
A method for transmitting an optical clock signal to an electronic component, comprising the following steps:
- generating the optical clock signal,
- converting the optical clock signal into an electrical clock signal supplied to the electronic component, and
- supplying the optical clock signal via an optical line for conversion into the electrical clock signal,
- wherein the optical clock signal is provided with a delay time from the optical clock signal generation to the electronic component, wherein the delay time is adjusted,
- wherein the delay time is regulated,
- wherein a temperature gradient within the electronic component is compensated,
- wherein a calibration signal is fed from a calibration device to the electronic component for determining calibration values, and
- wherein calibration values are determined based on a calibration signal of a calibration measurement, and the delay time is adjusted on the basis of the calibration values.
Dependencies are inferred from the claim text.