Multi-channel broadband microwave optical transmission link receiving end phase stabilization device

A transmission link and receiving end technology, which is applied in the field of microwave optical transmission, can solve problems such as the inability to realize multi-channel broadband microwave optical phase-stable transmission, and achieve the effect of ensuring phase and cycle consistency, reducing measurement time, and realizing phase-stable transmission

Active Publication Date: 2019-06-25
THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0006] The invention provides a multi-channel broadband microwave optical transmission link receiving end phase stabilization device to solve the problem that the current phase stabilization technology cannot realize multi-channel broadband microwave optical phase stabilization transmission

Method used

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  • Multi-channel broadband microwave optical transmission link receiving end phase stabilization device
  • Multi-channel broadband microwave optical transmission link receiving end phase stabilization device
  • Multi-channel broadband microwave optical transmission link receiving end phase stabilization device

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0029] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0030] see figure 1 , is a ...

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Abstract

The invention provides a phase stabilization device of a receiving end of a multichannel broadband microwave optical transmission link. The phase stabilization device comprises a phase measurement pilot link, a delay measurement pilot link, a controller and a plurality of optical transmission links, each optical transmission link comprises a transmitting part and a receiving part connected throughan optical fiber, output ends of the phase measurement pilot link and the delay measurement pilot link correspondingly provide a first optical signal and a second optical signal to the receiving part, and the receiving part transmits the first optical signal and the second optical signal to the transmitting part through an optical fiber; the transmitting part transmits the first optical signal and the second optical signal together with an input optical signal of the transmitting part to the receiving part through an optical fiber, and the receiving part outputs the input optical signal and correspondingly transmits the first optical signal and the second optical signal to the receiving ends of the phase measurement pilot link and the delay measurement pilot link so as to measure phase differences and time differences of the optical transmission links, thereby adjusting the phases of the optical signals in the optical transmission links in a phase stabilization manner.

Description

technical field [0001] The invention belongs to the field of microwave optical transmission, in particular to a multi-channel broadband microwave optical transmission link receiving end phase stabilization device. Background technique [0002] Due to the advantages of broadband, low loss, flexible distribution, anti-interference and low weight, microwave optical transmission technology is very suitable for the transmission and distribution of radio frequency signals, especially broadband high frequency signals. Remote control, phased array sub-array, etc. have broad application prospects. In these applications, ensuring the phase stability of a single-channel microwave optical transmission link and the phase consistency between multiple channels is one of the key technologies to realize system functions. However, the optical transmission medium optical fiber is affected by the external environment (temperature, vibration, etc.), which will cause the equivalent length of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/40H04B10/077H04J14/02
CPCH04B10/077H04B10/0775H04B10/40H04J14/0227
Inventor 喻洁孙力军瞿鹏飞
Owner THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP
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