Monolithic integrated mode-adjustable chaotic laser and manufacturing and control method

A chaotic laser, monolithic integration technology, applied in the field of lasers, can solve the problem that mode tunable chaotic lasers cannot be realized

Active Publication Date: 2021-06-08
NANJING UNIV
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Problems solved by technology

[0006] The present invention provides a single-chip integrated mode tunable chaotic laser, manufacturing an

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  • Monolithic integrated mode-adjustable chaotic laser and manufacturing and control method
  • Monolithic integrated mode-adjustable chaotic laser and manufacturing and control method
  • Monolithic integrated mode-adjustable chaotic laser and manufacturing and control method

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[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 monolithic integrated mode-adjustable chaotic laser and a manufacturing and control method, the laser comprises a left segment and a right segment of same active equivalent Pi phase shift uniform Bragg sampling grating and a middle segment of active equivalent Pi phase shift antisymmetric Bragg sampling grating which are integrated on the same chip and share one segment of optical waveguide; the antisymmetric Bragg sampling grating is used for realizing conversion of incident light and reflected light between a TE0 mode and a TE1 mode; and the power ratio of the input light and the output light injected into the antisymmetric Bragg sampling grating in the middle section is changed by adjusting the bias current of the equivalent pi phase-shift uniform Bragg sampling grating in the left section and the right section respectively, and chaotic laser output is generated. According to the invention, the problem that a mode-tunable chaotic laser cannot be realized in the prior art is solved.

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 ...

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Application Information

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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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