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Low-speed polarization scrambling instrument

A polarization scrambler and polarization technology, which is applied in the field of slow polarization scrambler, and can solve the problems of high cost, easily damaged components, and difficult maintenance.

Inactive Publication Date: 2018-04-20
CHENGDU MAKEMODE COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In optical fiber sensing, polarization-dependent noise has a great impact on the sensing signal, and it is generally necessary to use a polarization scrambler to reduce the polarization-dependent noise. However, the current polarization scrambler is a device based on electrical signals, which is expensive, and the cheapest scrambler is The polarizer is about 20,000 RMB, which is not suitable for low-end optical fiber sensing system or optical fiber sensing research, and the device is easily damaged and difficult to maintain

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Embodiment Construction

[0014] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.

[0015] Such as Figure 1~2 As shown, the slow polarization scrambler includes a scrambler; the scrambler includes a steel block 3, a first motor 9, a slider 5 and a push rod 6, and the steel block 3 is provided with a chute 4, The slider 5 is located in the chute 4; the output end of the motor 9 is connected with a turntable 10, and the surface of the turntable 10 is provided with a columnar protrusion 11, and the columnar protrusion 11 is not located at the center of the turntable 10; It includes a collar 13 and a limiting plate 12; one end of the columnar protrusion 11 is fixed on the turntable 10, and the limiting plate 12 is fixed on the other end of the columnar protrusion 11; the collar 13 is set on t...

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Abstract

The invention discloses a low-speed polarization scrambling instrument, and relates to the field of optical fiber sensing. The low-speed polarization scrambling instrument disclosed by the invention comprises a scrambler, the scrambler comprises a steel block, a motor and a push rod, a chute is formed in the steel block, a slide block is arranged in the chute, a turntable is arranged on an outputshaft of the motor, a columnar projection is arranged on the turntable, a sleeve ring is sleeved on the columnar projection, a limiting plate for preventing the deviation of the sleeve ring is furtherarranged on the columnar projection, an optical fiber is fixed to the slide block, the motor converts circular motion into reciprocating of the slide block through the turntable and the push rod so as to drive the optical fiber fixed to the slide block to reciprocate, and thus polarization state scrambling of laser in the optical fiber is achieved.

Description

technical field [0001] The invention relates to the field of optical fiber sensing, in particular to a slow polarization scrambler. Background technique [0002] Optical fiber sensing technology began in 1977 and developed rapidly with the development of optical fiber communication technology. Optical fiber sensing technology is an important symbol to measure the degree of informatization of a country. From the Hangzhou Internet of Things and Sensing Technology Application Forum, we learned that optical fiber sensing technology has been widely used in military, national defense, aerospace, industrial and mining enterprises, energy and environmental protection, industrial control, medicine and health, metrology and testing, construction, household appliances and other fields. vast market. There are hundreds of optical fiber sensing technologies in the world, and physical quantities such as temperature, pressure, flow, displacement, vibration, rotation, bending, liquid level,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/2507G02B26/00
CPCH04B10/2507G02B26/00
Inventor 黄若川李道斌曾应华
Owner CHENGDU MAKEMODE COMM TECH