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Turntable double-beam transmission device based on fiber coupler and optical filter

A technology of optical filter and optical platform, which is applied in the field of precision measurement and inertial navigation, can solve the problems of lack of flexibility of the system, complex system on the platform, heavy load of the turntable, etc., and achieve simple mechanical structure, large expandable space, and saving effect of space

Active Publication Date: 2018-08-24
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the existing problems and deficiencies of the prior art, that is, the system on the platform is relatively complex, the volume is relatively large, and the load of the turntable is heavy, which causes the system to lack flexibility in some applications.

Method used

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  • Turntable double-beam transmission device based on fiber coupler and optical filter
  • Turntable double-beam transmission device based on fiber coupler and optical filter
  • Turntable double-beam transmission device based on fiber coupler and optical filter

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Embodiment Construction

[0048] Below in conjunction with accompanying drawing and embodiment this device is described in detail:

[0049] 1. The structure of the device

[0050] 1. Overall

[0051] As shown in Figure 1, the device includes an optical platform A;

[0052] A light source 00, a beam combining module 10, a first reflector 20, a turntable 30, a second reflector 40 and a spectroscopic module 50 are provided;

[0053] The light source 00 includes parallel first and second lasers JG-1 and JG-2;

[0054] The beam combining module 10 includes a series fiber beam combiner GH and a collimator ZZ;

[0055] Optical splitting module 50 comprises coupler OH, the 1st, 2nd collimator ZZ-1, ZZ-2, fiber beam splitter GF and the 1st, 2nd optical filter LB-1, LB-2; Coupler OH and optical fiber splitter The beam splitter GF is connected front and back, the fiber beam splitter GF, the first collimator ZZ-1, the first optical filter LB-1 are connected in sequence, the fiber beam splitter GF, the second c...

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Abstract

The invention discloses a turntable double-beam transmission device based on a fiber coupler and an optical filter, and relates to the field of precision measurement and inertial navigation. The device is placed on an optical platform. A light source, a beam combining module and a first reflector are arranged successively. A turntable is fixed to the optical platform by the legs thereof. The firstreflector is fixed to the optical platform and located at an intermediate position below the bottom surface of the turntable. A second reflector is fixed at an intermediate position above the table top of the turntable. The second reflector and a beam splitting module are arranged one front and back. The beam splitting module is placed above the table top of the turntable. First and second optical filters are Fabry-perot interferometers. The device is simple in structure, high in stability and easy to manufacture, and can be applied to the high-precision detection of a laser gyro, the inertial measurement of a laser interferometer and an atomic interferometer, the measurement of basic physical constants and the high-precision verification of special relativity.

Description

technical field [0001] The invention relates to the field of precision measurement and inertial navigation, in particular to a turntable double-beam transmission device based on a fiber optic coupler and an optical filter, which can be widely used in the high-precision detection of laser gyroscopes, the inertia of laser interferometers and atomic interferometers In systems requiring multiple lasers and turntables, such as measurement, determination of fundamental physical constants, and high-precision verification of special relativity. Background technique [0002] In precision measurement research and technical applications using highly stable lasers, such as Lorentz symmetry testing, earth rotation monitoring and other precision measurement research, lasers and turntables are necessary for experimental systems. With the development of precision measurement technology, the performance index requirements of lasers and turntables are getting higher and higher. It is inevitab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10G02B26/08G01D5/353G01C21/16
CPCG02B26/0833G02B27/1006G01C21/16G01D5/35312
Inventor 毕进李刘锋陈李生支允琳张涛
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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