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Gaussian light comprehensive experiment teaching system and experiment method thereof

A teaching system and Gaussian light technology, applied in the field of Gaussian light comprehensive experimental teaching system, can solve problems such as not involving two Gaussian modes, and achieve the effects of efficient teaching tasks, strong controllability, and comprehensive training.

Active Publication Date: 2020-04-17
XI AN JIAOTONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, the contents mentioned above are the basic contents in Gaussian light experiment teaching, which can enable students to have a certain understanding of its basic properties, and do not involve the two Gaussian modes that have been widely studied in practical applications. Laguerre- Gaussian and Hermitian-Gaussian

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  • Gaussian light comprehensive experiment teaching system and experiment method thereof

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] like figure 1 As shown, a Gaussian light comprehensive experiment teaching system provided by the present invention is composed of three modules: Gaussian mode generation module I, mode mutual conversion module II and mode acquisition module III.

[0038] Among them, the Gaussian mode generation module I consists of a laser, an attenuation plate 2, a beam expander system 3, a half-wave plate 4, a non-polarizing beam splitter 5, a spatial light modulator 6, an optical 4F system 7 and a pinhole 8. The laser generates fundamental mode Gaussian light 1, the light intensity is reduced by the attenuator 2, and then the beam expander system 3 is used to increase the spot size, and then the polarization component of the beam is adjusted by the half-wave plate 4, and after passing through the non-polarizing beam splitter 5, it is uniform and vertical T...

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Abstract

The invention discloses a Gaussian light comprehensive experiment teaching system and an experiment method thereof. The system comprises a Gaussian mode generation module I, a mode mutual conversion module II and a mode acquisition module III. The Gaussian mode generation module I comprises a laser, an attenuation sheet, a beam expanding system, a non-polarization beam splitter and the like; the mode mutual conversion module II comprises an integrated Gaussian light mode converter and the like; the mode acquisition module III is a charge-coupled device image sensor; the laser is used for generating fundamental mode Gaussian light, then the light intensity is weakened by an attenuation sheet, the size of a light spot is increased by the beam expanding system, the polarization component of the light beam is adjusted by a half-wave plate, and the light beam can uniformly and vertically enters a spatial light modulator after passing through a non-polarization beam splitter, finally the selected first-stage diffracted light is a finally generated Gaussian mode after passing through an optical 4F system combined with a small hole; after being reflected by the reflector, the first-stage diffraction light sequentially passes through the adjusting lens and the integrated Gaussian light mode converter and finally enters the charge-coupled device image sensor.

Description

technical field [0001] The invention belongs to the technical field of optical experiment teaching, and in particular relates to a Gaussian light comprehensive experiment teaching system and an experiment method thereof. Background technique [0002] Gaussian light is an electromagnetic beam whose transverse electric field and irradiance distribution approximately satisfy a Gaussian function. It has received extensive attention and research in the field of optics. Among them, the Hermite-Gaussian mode and the Laguerre-Gaussian mode are the two most commonly used Gaussian modes. . At the same time, Gaussian light can better describe the characteristics of fundamental-mode laser beams in confined stable cavities. It is of great significance to study Gaussian light as the basis for studying other types of laser beams. [0003] At present, the existing experimental teaching system for Gaussian light mainly includes the measurement and exploration of the characteristics of the G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/22
CPCG09B23/22
Inventor 童童张沛贾俊亮刘青张俊武高博
Owner XI AN JIAOTONG UNIV
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