Photon linear frequency conversion and optical fiber transmission method for microwave and millimeter wave signals

An optical fiber transmission, millimeter wave technology, applied in the millimeter wave, optical communication, microwave fields, can solve the problems of limited system performance improvement, mutual restriction of dispersion compensation and linear optimization, etc., to achieve the effect of good local vibration isolation and best performance

Active Publication Date: 2021-11-23
XIDIAN UNIV
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Problems solved by technology

However, there are currently few schemes that can simultaneously optimize nonlinear distortion and compensate link dispersion in the photonic mixing structure, and the existing simultaneous optimization schemes, dispersion compensation and linear optimization, restrict each other, making the performance of the system limited.

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  • Photon linear frequency conversion and optical fiber transmission method for microwave and millimeter wave signals
  • Photon linear frequency conversion and optical fiber transmission method for microwave and millimeter wave signals
  • Photon linear frequency conversion and optical fiber transmission method for microwave and millimeter wave signals

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing the embodiment of the present invention is described in detail: present embodiment is carried out under the premise of technical solution of the present invention, has provided detailed implementation mode and concrete operation process, but protection scope of the present invention is not limited to subordinates the embodiment.

[0028] figure 1 It is a schematic diagram of the photon linear frequency conversion and optical fiber transmission method of microwave and millimeter wave signals. The device includes 1 laser LD, 2 dual polarization quadrature phase shift keying DP-QPSK modulators, 3 electrical power splitter PS, 4 electrical attenuator ATT, 5 polarization controller PC, 6 polarizer Pol, 7 single-mode fiber SMF, 8 erbium-doped fiber optical amplifiers EDFA, 9 photodetectors PD. The optical carrier output from the laser enters the DP-QPSK modulator and is divided into two channels, the upper channel enters the X-...

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Abstract

The invention discloses a photon linear frequency conversion and optical fiber transmission method for microwave and millimeter wave signals, and relates to the technical field of microwaves and the technical field of optical communication. The method is shown in a figure 1 in the specification, and comprises a laser, a dual-polarization quadrature phase shift keying modulator, an electric power divider, an electric attenuator, a polarization controller, a polarizer, a single-mode fiber, an erbium-doped fiber optical amplifier and a photoelectric detector. A radio frequency signal and a local oscillator signal are modulated to an optical carrier in a minimum point modulation mode, so that the frequency conversion efficiency is improved; the main bias voltage of the modulator is used for compensating power fading caused by optical fiber dispersion; and the polarization controller is used for realizing linear optimization. Dispersion compensation and linear optimization are simultaneously realized in the photon frequency conversion system, the system gain and the dynamic range are improved to a greater extent, and the method has important application value in the fields of multi-base-station radars, wireless communication and the like.

Description

technical field [0001] The invention relates to the technical field of optical communication and microwave and millimeter wave technology, and mainly relates to photon frequency mixing of microwave and millimeter wave signals and linear optimization and dispersion compensation in links. Background technique [0002] In recent years, military electronic and civilian communication systems such as electronic warfare, radar, and satellite communications are developing towards multi-band and large bandwidth. Multi-stage frequency mixing structure, each stage needs signal processing units such as frequency conversion, filtering, amplification, etc., making the entire frequency mixing module very large and complex. At the same time, the proposal of the distributed structure in the radar system and the development of the micro-cell structure in the mobile communication system have multiplied the number of base stations. How to realize the efficient and low-cost transmission of signa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/2507H04B10/2513H04B10/2543
CPCH04B10/2507H04B10/2513H04B10/2543
Inventor 翟伟乐文爱军
Owner XIDIAN UNIV
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