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Microwave signal optical fiber steady-phase transmission system based on phase compensation

A microwave signal and phase-stable transmission technology, applied in the field of microwave photonics, can solve problems such as system complexity, and achieve the effect of large system bandwidth, low construction and maintenance costs

Active Publication Date: 2015-03-25
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, the active control method requires multiple lasers and phase-synchronized microwave sources, and the system is relatively complex

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  • Microwave signal optical fiber steady-phase transmission system based on phase compensation

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Embodiment Construction

[0029] see figure 1 , figure 1 It is a schematic structural diagram of the present invention, the present invention provides a microwave signal optical fiber phase-stable transmission system based on phase compensation, the system includes: a central station A, a remote B and a single-mode optical fiber 10, the central station A through Single-mode optical fiber 9 is connected with far-end B, wherein:

[0030] The central station includes:

[0031] A microwave signal source 1, used to provide a local oscillator microwave signal, which is the signal to be transmitted;

[0032] Wherein, the microwave signal source 1 can be a vector network analyzer or a microwave signal source;

[0033] A first radio frequency power divider 2, its input end is connected with the output end of microwave signal source 1, and it is used for the local oscillator microwave signal that described microwave signal source 1 produces is divided into two paths;

[0034] A frequency divider 3, whose inp...

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Abstract

The invention provides a microwave signal optical fiber steady-phase transmission system based on phase compensation. The system comprises a center station, a far end and a single mode fiber, and the center station is connected with the far end through the single mode fiber. The system processes signals at the center station only, so the construction cost and the maintenance cost are low; system bandwidth is large; phase stabilization can be achieved for signals severe in phase jitter.

Description

technical field [0001] The invention relates to a microwave signal optical fiber phase-stable transmission system, in particular to a phase-compensated microwave signal optical fiber phase-stable transmission system, which belongs to the technical field of microwave photonics. Background technique [0002] The phase-stable transmission technology of microwave signals is widely used in distributed synthetic aperture radar, deep space exploration, atomic clock distribution, global navigation satellite system and other fields. Traditional microwave signal transmission uses coaxial cables for phase-stable transmission, but the cables are large in loss, bulky, and costly, making it difficult to achieve long-distance transmission. Due to the advantages of wide bandwidth, low loss, anti-electromagnetic interference, and low price, optical fiber is considered to be very suitable for microwave signal transmission, especially long-distance transmission. However, due to the influence ...

Claims

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Application Information

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IPC IPC(8): H04B10/2507H04B10/2575
Inventor 李伟王玮钰孙文惠王文亭刘建国祝宁华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI