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A monolithically integrated mode-tunable chaotic laser, fabrication and control method

A technology of chaotic lasers and monolithic integration, applied in the field of lasers, can solve problems such as the inability to realize mode-tunable chaotic lasers, and achieve the effects of practicality, flat spectrum, and simple structure

Active Publication Date: 2022-03-22
NANJING UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a single-chip integrated mode tunable chaotic laser, manufacturing and control method, which solves the problem that the prior art cannot realize the mode tunable chaotic laser

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  • A monolithically integrated mode-tunable chaotic laser, fabrication and control method
  • A monolithically integrated mode-tunable chaotic laser, fabrication and control method
  • A monolithically integrated mode-tunable chaotic laser, fabrication and control method

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.

[0037]In order to solve the above-mentioned technical problem that the monolithic integrated chaotic laser does not have the mode tunable function, the purpose of the present invention is to propose a monolithic integrated mode tunable chaotic laser, which can increase the utilization rate of the mode and provide future optical communication with mode division mult...

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Abstract

The invention discloses a single-chip integrated mode-tunable chaotic laser and its manufacturing and control methods. The laser includes the same active equivalent π phase-shift uniform Bragg sampling grating in the left and right sections and the active equivalent π phase-shifted uniform Bragg sampling grating in the middle section. The phase-shifted antisymmetric Bragg sampling grating is integrated on the same chip and shares a section of optical waveguide; the antisymmetric Bragg sampling grating is used to realize the incident light and reflected light in TE 0 and TE 1 Transformation between modes; by adjusting the bias current of the left and right equivalent π phase-shifted uniform Bragg sampling gratings respectively, changing the power ratio of the input light and output light injected into the middle anti-symmetrical Bragg sampling grating to generate chaotic laser output. The present application solves the problem that the mode-tunable chaotic laser cannot be realized in the prior art.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a single-chip integrated mode-tunable chaotic laser, and a method for manufacturing and controlling the laser. Background technique [0002] As a special form of laser output, chaotic laser has the characteristics of noise-like wide spectrum, inherently hidden and highly applicable. In recent years, with the gradual establishment and improvement of the theoretical system of chaotic lasers, the development and application of chaotic lasers has become a research hotspot. Due to the advantages of small size, low cost, high reliability, easy integration, and direct modulation, semiconductor lasers have become the superior laser devices for chaotic laser generation, and are widely used in secure communication, laser ranging, and power failure detection. As a kind of semiconductor laser, distributed feedback (DFB) laser has built-in Bragg grating, which has the advantages of realizing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/065H01S5/068H01S5/00H01S5/026G02B6/124G02B6/138
CPCH01S5/0651H01S5/065H01S5/068H01S5/0268H01S5/026H01S5/0085G02B6/124G02B6/138
Inventor 何扬施跃春李密陈向飞张学进
Owner NANJING UNIV
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