Mixed coherent polarization method based on phase control and polarization control

A technology of polarization control and phase control, which is applied in the field of optical engineering, can solve the problems of unreported coherent polarization synthesis methods, and achieve the effects of high-efficiency coherent polarization synthesis, fast convergence rate, and simple structure

Active Publication Date: 2017-08-11
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, no coherent polarization synthesis method based on polarization control has been reported

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  • Mixed coherent polarization method based on phase control and polarization control
  • Mixed coherent polarization method based on phase control and polarization control
  • Mixed coherent polarization method based on phase control and polarization control

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Such as figure 1 Shown is a schematic diagram of the organizational structure of a hybrid coherent polarization synthesis method based on phase control and polarization control. The components required to realize the method include a fiber phase compensator 1 , a fiber polarization beam combiner 2 , a fiber polarization controller 3 , a fiber analyzer 4 , a photodetector 5 and a synthesis controller 6 . The fiber optic polarization beam combiner 2 includes a first fiber optic polarization beam combiner 2-1 and a second fiber optic polarization beam combiner 2-2. This method realizes three-way input by using optical fibers and optical fiber devices through cascaded phase control and polarization control. High-efficiency coherent polarization synthesis of light beams to output linearly polarized light; including a phase control module and a polari...

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Abstract

The invention discloses a mixed coherent polarization method based on phase control and polarization control. According to the method, through cascaded phase control and polarization control, high-efficiency coherent polarization synthesis of three input light beams is realized by means of an optical fiber and an optical fiber device, thereby outputting linearly polarized light. A device required for realizing the method comprises an optical fiber phase compensator, an optical fiber polarization beam combiner, an optical fiber polarization controller, an optical fiber polarization analyzer, a photoelectric detector and a synthesis controller. Based on the method, the number of the input light beams can be increased to above three. Compared with a coherent polarization synthesis method based on phase control, the mixed coherent polarization method can prevent an influence of unmatched input light beam strength and realizes high-efficiency coherent polarization synthesis.

Description

technical field [0001] The invention relates to a coherent polarization synthesis method, in particular to a hybrid coherent polarization synthesis method based on phase control and polarization control, and belongs to the technical field of optical engineering. It has important application prospects in free space laser communication, laser atmospheric transmission, laser radar and other fields. Background technique [0002] The coherent polarization combining method can be used to combine the linearly polarized light whose polarization states are perpendicular to each other into one beam. Coherent polarization synthesis based on optical fibers and optical fiber devices has the advantages of compact structure, high stability, and easy combination with other optical fiber devices. It has important application prospects in the fields of free space laser communication, laser atmospheric transmission, and lidar. However, due to factors such as inconsistency in the input beam ph...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/28
CPCG02B27/283
Inventor 耿超杨燕李新阳李枫黄冠
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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