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Sweep frequency electric signal generation system

A technology for generating systems and electrical signals, applied in the field of microwave photonics, can solve problems such as poor frequency stability of sweeping electrical signals, and achieve the effect of improving frequency stability

Active Publication Date: 2021-12-28
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the process of realizing the concept of the present disclosure, the inventors found that there are at least the following problems in the related art: the frequency stability of the frequency-sweeping electrical signal generated by the microwave photon method is poor

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  • Sweep frequency electric signal generation system

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Embodiment Construction

[0064] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0065] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features,...

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Abstract

The embodiment of the invention provides a sweep frequency electric signal generation system. The system comprises a sweep frequency light generation module, a photoelectric oscillator loop and a detection feedback module. The sweep frequency light generation module comprises a semiconductor laser used for generating a single-frequency light signal; and an optical splitter which is used for generating a sweep-frequency optical signal and a first feedback optical signal from the single-frequency optical signal. The photoelectric oscillator loop comprises a first photoelectric converter used for generating a sweep frequency electric signal based on the sweep frequency optical signal; and a phase shift fiber bragg grating which is used for generating a second feedback optical signal based on the frequency sweep optical signal. The detection feedback module comprises a second photoelectric converter and is used for generating a feedback electric signal according to the first feedback optical signal and the second feedback optical signal; a radio frequency source which is used for generating a single-frequency electric signal; and a frequency discriminator which is used for generating a control signal for controlling the semiconductor laser based on the single-frequency electric signal and the feedback electric signal so as to adjust the wavelength of the single-frequency optical signal generated by the semiconductor laser and further adjust the frequency of the sweep-frequency electric signal.

Description

technical field [0001] The embodiments of the present disclosure relate to the technical field of microwave photonics, and more specifically, to a frequency sweeping electrical signal generation system. Background technique [0002] With the development of microwave photonics technology, the way of using microwave photonics to generate frequency-sweeping electrical signals has gradually attracted more and more attention. Among them, the use of photoelectric oscillators to generate frequency-sweeping electrical signals has gradually become the focus of research. [0003] In the process of realizing the concept of the present disclosure, the inventors have found that there are at least the following problems in the related art: the frequency stability of the frequency-sweeping electrical signal generated by the microwave photon method is relatively poor. Contents of the invention [0004] In view of this, an embodiment of the present disclosure provides a frequency sweeping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/13
CPCH01S3/1305H01S3/13
Inventor 李明李国政郝腾飞石暖暖李伟
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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