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Device for increasing frequency difference of Zeeman double-frequency laser

A Zeeman dual-frequency, laser technology, applied to the structure/shape of optical resonators, can solve the problems of increasing laser frequency difference and high laser frequency difference, so as to improve the frequency difference performance, improve the degree of frequency splitting, and improve the frequency difference Effect

Active Publication Date: 2014-05-21
SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
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Problems solved by technology

The magnetic field of the longitudinal magnetic field method is parallel to the direction of the optical axis of the laser. The frequency difference of the laser using the longitudinal magnetic field method is relatively high, generally about 2MHz, such as Chinese patent CN85100730, but the magnetic field is provided by a simple magnetic ring of a single material, and the magnetic performance has not been optimized. design, which limits the further improvement of the frequency difference of the laser

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  • Device for increasing frequency difference of Zeeman double-frequency laser
  • Device for increasing frequency difference of Zeeman double-frequency laser
  • Device for increasing frequency difference of Zeeman double-frequency laser

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Embodiment Construction

[0026] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0027] The invention provides a device for increasing the frequency difference of a Zeeman dual-frequency laser. The magnetic ring in the device is made of high-stability magnetic material and a hollow magnetic ring composed of a semi-closed yoke structure, which can provide a uniformly distributed magnetic field for the laser and increase the degree of frequency splitting caused by the Zeeman effect, thereby improving Frequency difference performance of dual-frequency lasers.

[0028] Please refer to figure 1 , figure 1 Shown is a schematic diagram of a device for increasing the frequency difference of a Zeeman dual-frequency laser according to a preferred embodiment of the present invention. The present invention proposes a device for increasing the frequency difference of a Zeeman dual-freque...

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Abstract

The invention provides a device for increasing frequency difference of a Zeeman double-frequency laser. The device comprises a laser tube, a heater strip tightly winded on a tube wall of the laser tube, a magnet ring disposed around the laser tube, and isolation rubber filled between the heater strip and the magnet ring. The invention discloses the device for increasing frequency difference of the Zeeman double-frequency laser. The device can greatly increase the frequency difference of double-frequency laser beams generated by Zeeman effect in a condition that the performance of a single-frequency laser is kept constant. The device uses a hollow magnet ring with magnet yoke which provides an equally distributed magnetic field for the laser and improves frequency splitting degree generated by the Zeeman effect, thereby improving frequency difference performance of the double-frequency laser.

Description

technical field [0001] The invention relates to the field of Zeeman dual-frequency lasers, and in particular to a device for increasing the frequency difference of Zeeman dual-frequency lasers. Background technique [0002] The dual-frequency laser interferometry system has the characteristics of high resolution, high speed and low noise, and is widely used in the field of high precision measurement. The dual-frequency laser interferometry system consists of a dual-frequency laser, a dual-frequency laser interferometer and a data processing unit. Its principle is to use two beams of different frequencies for length measurement. The dual-frequency laser emits orthogonally polarized laser beams with a certain frequency difference, and the laser interferometer converts the target displacement information into optical interference signals, and the interference signals are processed by the data processing unit to obtain the target displacement information. [0003] According to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/08
Inventor 吴萍张志平张晓文池峰陈勇辉
Owner SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
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