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High-power semiconductor laser with limited length bandwidth

A technology of semiconductors and lasers, applied in the field of optoelectronics, can solve the problems of limited width increase, reduce energy consumption and volume, simplify the test process, and achieve the effect of target response

Active Publication Date: 2020-08-28
全磊光电股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of the need to ensure the lateral single mode of the traditional laser, the increase in width is very limited

Method used

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  • High-power semiconductor laser with limited length bandwidth
  • High-power semiconductor laser with limited length bandwidth
  • High-power semiconductor laser with limited length bandwidth

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The embodiment of the present invention discloses a high-power semiconductor laser with a limited and long bandwidth, including: a multi-mode waveguide, a plurality of fan-shaped tilted gratings are used in the grating area of ​​the multi-mode waveguide, and the extension lines of each fan-shaped tilted grating plane converge on the multi-mode At a point on the transverse central axis of the waveguide, the inclination angle formed by each sector-shaped i...

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Abstract

The invention discloses a high-power semiconductor laser with limited length bandwidth, which comprises a multi-mode waveguide, wherein a plurality of fan-shaped inclined gratings are adopted in a grating area in the multi-mode waveguide, the extension lines of the fan-shaped inclined grating planes converge at one point on the transverse central axis of the multi-mode waveguide, the inclination angle formed by each fan-shaped inclined grating plane and the longitudinal axis of the multi-mode waveguide and the grating period form gradual change, and the fan-shaped inclined gratings are distributed in an axial symmetry mode along the transverse central axis. By designing the fan-shaped inclined gratings, the change of the period and the inclination angle of the gratings can be adjusted, sothat the coupling among multiple modes can be adjusted, the control on the laser light is realized, the bandwidth of the emergent wavelength is flexibly controlled, and the target response is realizedunder the regulation and control of the external current.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, and more specifically relates to a high-power semiconductor laser with limited and long bandwidth. Background technique [0002] Optical communication has developed rapidly in recent decades and has gradually become the most mainstream information transmission method. There are three main reasons for this: First, light has a huge bandwidth, generally hundreds of THz, much larger than traditional electromagnetic wave signals, so A large amount of information can be transmitted at the same time; 2. Light is easy to be transmitted, and the cost and loss of optical fibers used to transmit optical signals are very low, and at the same time, it has strong anti-interference ability; 3. The generation and detection of light have been greatly developed. Implemented in semiconductor-based materials and relatively easy to manufacture. In the light source part, semiconductor lasers have many advanta...

Claims

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Application Information

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IPC IPC(8): H01S5/12
CPCH01S5/1206H01S5/1209H01S5/1215
Inventor 施跃春何扬郝丽君陈向飞
Owner 全磊光电股份有限公司
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