A kind of laser and its manufacturing method and application

A technology of lasers and optical components, applied in the field of lasers, can solve the problems of inability to scan long-distance objects, small spot, and inability to scan larger areas, etc., and achieve the effects of easy transverse mode control, thin thickness, and simple structure

Active Publication Date: 2021-01-22
VERTILITE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Vertical-cavity surface-emitting lasers can be used in electronic fields such as three-dimensional perception and lidar, but when the power of the vertical-cavity surface-emitting laser is small, it cannot meet the scanning of long-distance objects
At the same time, because the vertical cavity surface emitting laser emits a small spot, it cannot scan a larger area

Method used

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  • A kind of laser and its manufacturing method and application
  • A kind of laser and its manufacturing method and application
  • A kind of laser and its manufacturing method and application

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Embodiment Construction

[0059] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0060] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, ...

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Abstract

The invention provides a laser and a manufacturing method and application thereof. The laser comprises a lifting substrate, a reflecting layer, at least one platform-shaped structure, a plurality of grooves and a second material layer, wherein the lifting substrate comprises a first surface and a second surface which are opposite to each other; the reflecting layer is positioned on the second surface; the at least one platform-shaped structure is positioned on the reflecting layer, and the platform-shaped structure comprises at least two active layers and a first material layer; the pluralityof grooves are formed in the first material layer; the second material layer is located on the first material layer and fills the plurality of grooves; the refractive index of the first material layeris greater than that of the second material layer; a tunnel junction is arranged between the at least two active layers, and each active layer comprises a first semiconductor layer, an active regionand a second semiconductor layer. The laser provided by the invention can improve the current injection efficiency.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a laser and its manufacturing method and application. Background technique [0002] Vertical cavity surface emitting laser (Vertical Cavity Surface Emitting Laser, VCSEL) is developed on the basis of gallium arsenide semiconductor material, which is different from other light sources such as LED (light emitting diode) and LD (Laser Diode, laser diode), with small size, The advantages of circular output spot, single longitudinal mode output, small threshold current, low price, and easy integration into large-area arrays are widely used in optical communication, optical interconnection, optical storage and other fields. [0003] Vertical-cavity surface-emitting lasers can be used in electronic fields such as three-dimensional perception and lidar, but when the power of the vertical-cavity surface-emitting laser is small, it cannot satisfy the scanning of long-distance objects. At t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/183
CPCH01S5/18302H01S5/18361H01S5/18386H01S2304/00
Inventor 张成梁栋刘嵩
Owner VERTILITE CO LTD
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