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Integration optical waveguide three dimensional electric field measuring system and method based on time division multiplexing

An integrated optical waveguide and time-division multiplexing technology, applied in electrostatic field measurement and other directions, can solve the problems of low spatial resolution, large sensor size, interference, etc., and achieve the effects of high spatial resolution, improved accuracy, and reduced volume

Inactive Publication Date: 2018-04-17
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

The existing three-dimensional electric field sensors are generally made of metal dipole antennas with three directions perpendicular to each other. The three-dimensional electric field sensor probe with this metal structure will cause non-negligible interference to the measured electric field. low rate

Method used

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  • Integration optical waveguide three dimensional electric field measuring system and method based on time division multiplexing
  • Integration optical waveguide three dimensional electric field measuring system and method based on time division multiplexing
  • Integration optical waveguide three dimensional electric field measuring system and method based on time division multiplexing

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Embodiment 1

[0029] Embodiment 1: as Figure 1-2 As shown, an integrated optical waveguide three-dimensional electric field measurement system based on time division multiplexing, including:

[0030] A wavelength-tunable polarization-maintaining laser source 1 is used to generate a linearly polarized beam whose wavelength can be regulated by an electrical signal processing unit 10;

[0031] The MZI-type integrated optical waveguide field sensor 4 in the x direction, the integrated optical waveguide field sensor 5 in the y direction, and the integrated optical waveguide field sensor 6 in the z direction of the MZI type with asymmetrical lengths of the two arms have a two-by-two mutually perpendicular structure, that is, three integrated optical waveguide field sensors. The waveguide one-dimensional electric field sensor constitutes an integrated optical waveguide three-dimensional electric field sensor; it is used to receive the three components of the space electric field signal in the x, ...

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Abstract

The invention relates to an integration optical waveguide three dimensional electric field measuring system and method based on time division multiplexing, and belongs to the electric field measuringtechnical field; the system comprises a polarization-maintaining laser source with a tunable wavelength, MZI type integration optical waveguide electric field sensors with two arms of asymmetrical lengths, a single-mode fiber, a polarization maintaining fiber, an optical switch, an optical combiner, a photoelectric detector and an electric signal processing unit. The integration optical waveguidethree dimensional electric field measuring system based on time division multiplexing employs the optical switch and the time division multiplexing technology to control the output wavelength of the polarization-maintaining laser source with the tunable wavelength, locks the static state working point of the three MZI type integration optical waveguide electric field sensors with two arms of asymmetrical lengths at [pi] / 2, thus carrying out three dimensional measurements for the electric field in a random direction in a space.

Description

technical field [0001] The invention relates to a time-division multiplexing-based integrated optical waveguide three-dimensional electric field measurement system and method, belonging to the technical field of electromagnetic field measurement. Background technique [0002] The direction of the actual measured electric field is often unknown, but the electric field along any direction in space can be decomposed into three electric field components perpendicular to each other. Therefore, in order to measure the electric field along any direction in space, it is of great significance to study a three-dimensional electric field sensor that can measure the three components of the electric field in space. The existing three-dimensional electric field sensors are generally made of metal dipole antennas with three directions perpendicular to each other. The three-dimensional electric field sensor probe with this metal structure will cause non-negligible interference to the measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/14
CPCG01R29/14
Inventor 张家洪李川李英娜赵振刚万小容
Owner KUNMING UNIV OF SCI & TECH
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