A Hybrid High Power Single Frequency Laser

A single-frequency laser and high-power technology, which is applied in the laser field to achieve the effects of reducing system complexity, improving power stability, and improving electro-optical efficiency

Active Publication Date: 2022-05-10
HUAZHONG PHOTOELECTRIC TECH INST (CHINA SHIPBUILDING IND CORP THE NO 717 INST)
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] Aiming at the technical problems existing in the prior art, the present invention provides a hybrid high-power single-frequency laser that combines the fiber seed source and semiconductor optical amplification, taking into account the advantages of high-power single-frequency fiber lasers and single-frequency semiconductor lasers. Without affecting the single-frequency performance of the laser, simplifying the optical path structure, reducing the number of active optical devices, and reducing system power consumption and system complexity can better meet the needs of practical applications

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  • A Hybrid High Power Single Frequency Laser
  • A Hybrid High Power Single Frequency Laser
  • A Hybrid High Power Single Frequency Laser

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Embodiment Construction

[0041] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0042] refer to image 3 , 1560nm single-frequency laser seed source 1 can use commonly used DFB / DBR single-frequency fiber laser seed source, including 976nm single-mode pump source, optical splitter, wavelength division multiplexer, active grating, polarization controller, etc., polarization control The device is used to ensure the polarization of the output laser.

[0043] Optionally, the 1560nm single-frequency laser seed source 1 can be a commonly used DFB / DBR single-frequency fiber laser seed source, or a 1560nm semiconductor grating external cavity seed source from RIO Company.

[0044] In order to avoid adverse effects on the performance of the seed source caused by the return light of the resonant frequency ...

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Abstract

The invention relates to a hybrid high-power single-frequency laser, comprising an optical fiber seed source unit, a semiconductor optical amplification unit, and a 780nm single-mode polarization-maintaining optical fiber; the optical fiber seed source unit and the semiconductor optical amplification unit are connected through a 780nm single-mode polarization-maintaining optical fiber ; The hybrid single-frequency laser outputs high-power linearly polarized single-frequency laser through a 780nm single-mode polarization-maintaining fiber. The invention combines the advantages of high-power single-frequency fiber lasers and single-frequency semiconductor lasers, simplifies the optical path structure, reduces the number of active optical devices, and reduces system power consumption and system complexity without affecting the single-frequency performance of the laser. It can better meet the needs of engineering applications.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a hybrid high-power single-frequency laser using a single-frequency fiber seed source and a semiconductor optical amplifier, especially for the application of cold atom interferometers. Background technique [0002] The measurement accuracy of cold atom interferometers (cold atom gyroscopes, atomic gravimeters, and gravity gradiometers) based on matter wave interference has reached or exceeded that of similar instruments in the traditional system, verifying their high-precision sensitive measurement capabilities and high-precision autonomous navigation capabilities. It has extremely high application value in aspects such as national gravity field construction and so on. Cold-atom interferometers are on their way to further improvements in precision and commercialization. [0003] The single-frequency laser participates in all the physical processes of atom manipulation in the col...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/50H01S3/109
CPCH01S5/50H01S5/5027H01S5/5036H01S3/109
Inventor 高俊陈新文毛海岑王斌程俊
Owner HUAZHONG PHOTOELECTRIC TECH INST (CHINA SHIPBUILDING IND CORP THE NO 717 INST)
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