US 2024/0118136 A1 · FREQUENCY SYNTHESIS SYSTEM AND FREQUENCY GENERATION METHOD OF MICROWAVE PHOTONS BASED ON PHOTOELECTRIC SYNERGY

Abstract

A frequency synthesis system and a frequency generation method of microwave photons based on photoelectric synergy are provided, the system includes an optical frequency comb for generating narrow optical pulse signals with high stability and low phase noise through; an optical frequency doubling/dividing unit for performing frequency doubling or frequency dividing on a repetition frequency of the narrow optical pulse signals output by the optical frequency comb; a photoelectric conversion unit for performing photoelectric conversion on input optical pulse signals, and outputting an electrical frequency comb; a second electrical filter unit for filtering input electrical signals; and a second electrical amplifying unit for performing power amplification on the input electrical signals. An operation frequency and performance of the optical frequency comb is three orders of magnitude or higher than that of common microwave frequency sources, microwave frequency signals with larger frequency range and better performance can be generated.

Claims9

Dependent claims

A frequency synthesis system of microwave photons based on photoelectric synergy, comprising:

an optical frequency comb configured to generate narrow optical pulse signals with high stability and low phase noise;
an optical frequency doubling/dividing unit configured to perform frequency doubling or frequency dividing on a repetition frequency of the narrow optical pulse signals output by the optical frequency comb;
a photoelectric conversion unit configured to perform photoelectric conversion on input optical pulse signals, and output an electrical frequency comb;
a second electrical filter unit configured to filter input electrical signals;
and
a second electrical amplifying unit configured to perform power amplification on the input electrical signals;
the optical frequency comb being connected with the optical frequency doubling/dividing unit, the optical frequency doubling/dividing unit being connected with the photoelectric conversion unit, the photoelectric conversion unit being electrically connected with the second electrical filter unit, and the second electrical filter unit being electrically connected with the second electrical amplifying unit.

4 more elements

A frequency generation method of microwave photons based on photoelectric synergy, comprising:

after performing frequency doubling or frequency dividing on narrow optical pulse signals generated by an optical frequency comb, determining whether a frequency that is required to be generated of signals is capable of being obtained through photoelectric conversion;
in response that the frequency that is required to be generated of the signals is capable of being obtained through the photoelectric conversion, generating signals to be generated by using a direct photoelectric conversion method;
in response that the frequency that is required to be generated of the signals is not capable of being obtained through the photoelectric conversion, determining whether the frequency that is required to be generated of the signals is less than a predetermined frequency threshold;
in response that the frequency that is required to be generated of the signals is less than the predetermined frequency threshold, generating the signals to be generated by using an electrical frequency synthesis method;
and
in response that the frequency that is required to be generated of the signals is not less than the predetermined frequency threshold, generating the signals to be generated by using an optical frequency shifting method.

3 more elements

Dependencies are inferred from the claim text.

Frequency synthesis system and frequency generation method of microwave photons based on photoelectric synergy

Life of this patent

Frequency synthesis system and frequency generation method of microwave photons based on photoelectric synergy

Life of this patent

Abstract

Claims9