Unlock instant, AI-driven research and patent intelligence for your innovation.

Microwave Field Intensity Atomic Measurement Device of All-fiber Mach-Zehnder Interferometer

A measuring device and interferometer technology, which is applied in the direction of electromagnetic field characteristics, can solve the problems of bulky detection antenna and low detection sensitivity

Active Publication Date: 2021-07-02
SHANXI UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: how to solve the problems of low detection sensitivity and bulky detection antenna of the traditional microwave measurement method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microwave Field Intensity Atomic Measurement Device of All-fiber Mach-Zehnder Interferometer
  • Microwave Field Intensity Atomic Measurement Device of All-fiber Mach-Zehnder Interferometer
  • Microwave Field Intensity Atomic Measurement Device of All-fiber Mach-Zehnder Interferometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A beam of weak power about 100mW, 852nm laser 1 is introduced into a 1×4 fiber optic beam splitter 2, which is evenly distributed to four output ports, and two beams of light with the same intensity are incident on the atoms filled with cesium atoms as probe light In the steam pool 16, the optical fiber joint is connected to one end face of the atomic gas chamber by a melting method, and the two beams of light propagate in parallel in the gas chamber with the same optical path; The transition resonance of the first excited state 6P3 / 2;

[0014] The other two beams of light with the same intensity pass through the first high-speed optical fiber phase stretcher 14 and the second high-speed optical fiber phase stretcher 15 respectively, and combine with the two beams of probe light passing through the atomic gas cell in two 2×2 optical fibers. 6 and 9 overlap and interfere to form two sets of Mach-Zehnder interferometers, and the interference signals of the two sets of int...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of measurement of microwave electric field. The microwave field intensity atomic measurement device of the all-fiber Mach-Zehnder interferometer, including the first laser emitting device (1), 1×4 fiber beam splitter (2), the second laser emitting device (3), fiber coupling head (4 ), fiber circulator (5), first 2×2 fiber combiner (6), first fast detector (7), oscilloscope or spectrum analyzer (8), second 2×2 fiber combiner (9), second fast detector (10), PID module (11), dual-channel voltage output module (12), signal source (13), first high-speed optical fiber phase stretcher (14), second high-speed optical fiber Phase stretcher (15), cesium atom vapor cell (16). The beneficial effect of the invention is that: the measurement of the extremely weak microwave field is realized by using the Mach-Zehnder interferometer, and the whole device is miniaturized and the structure is compact.

Description

technical field [0001] The invention relates to the field of microwave electric field measurement, in particular to a device for measuring extremely weak microwave fields with high sensitivity by using a Mach-Zehnder interferometer. Background technique [0002] The precise measurement of microwave electric field is of great significance to the fields of communication, national defense and biological detection. In the current microwave field measurement, the pursuit of small size, portability and measurement sensitivity of the sensor is increasing. The traditional microwave electric field measurement method uses a metal antenna with electrical characteristics to detect weak microwave signals. If you want to increase The effective detection distance of microwave antennas for unknown moving targets requires the antennas to have larger and larger apertures, and the increase in test sites makes it difficult to establish an electromagnetic environment that meets the requirements....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/08
Inventor 张林杰杨文广肖连团
Owner SHANXI UNIV