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Bicyclic-group direct modulation light source system

A modulation light source and ring-based technology, applied in the direction of lasers, laser components, electrical components, etc., can solve the problem of low direct modulation rate of light source, achieve the effect of improving dynamic high-speed modulation characteristics, increasing modulation rate, and increasing direct modulation bandwidth

Inactive Publication Date: 2012-06-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low direct modulation rate of the active ring resonant cavity light source, and propose a dual ring base direct modulation light source system

Method used

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  • Bicyclic-group direct modulation light source system
  • Bicyclic-group direct modulation light source system
  • Bicyclic-group direct modulation light source system

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] Such as figure 1 As shown, a dual-ring base directly modulated light source system includes: two active ring resonators, a coupling waveguide and an output waveguide, one of which is the main active ring resonator (MARR, Master ARR) , the other active ring resonator is a slave active ring resonator (SARR, Slave ARR); the electrodes on the main active ring resonator are used to load a DC bias current, and the output light generated passes through the coupling waveguide as a slave active The injection-locked signal outside the ring resonator is used to load the DC bias current and electrical modulation signal from the electrodes on the active ring resonator, and the modulated optical signal emitted by the laser is output through the output waveguide.

[0014] The coupling waveguide and output waveguide here are passive optical waveguides....

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Abstract

The invention discloses a bicyclic-group direct modulation light source system which is provided for solving the problem of lower modulation speed caused by the influence of limited band and frequency chirp of directly modulated active annular resonant cavity light sources. The system specifically comprises two active annular resonant cavities, a coupling waveguide and an output waveguide, wherein one active annular resonant cavity is a primary active annular resonant cavity, and the other active annular resonant cavity is a secondary active annular resonant cavity. A single chip integrated mode is adopted for the bicyclic-group light source system provided by the invention, the emergent light of the primary active annular resonant cavity is taken as external injection to lock the secondary active annular resonant cavity, the dynamic high-speed modulation characteristic of the secondary active annular resonant cavity is improved obviously, the direct modulation band width of the secondary active annular resonant cavity is increased, and further the light source modulation speed rate of the directly modulated active annular resonant cavities is improved.

Description

technical field [0001] The invention belongs to the field of photon network communication, and relates to the direct modulation technology of light source therein. Background technique [0002] With the rapid development of high-speed optical networks in modern society, the miniaturization and integration of photonic systems - Photonics Integrated Circuit (PIC, Photonics Integrated Circuit) has become an inevitable trend, and it can be used to realize the Internet network with ultra-large capacity and ultra-fast rate in the future and high-speed integrated optical on-chip interconnection network. To achieve this goal, it is first necessary to load an electrical signal on the light beam emitted by the light source, that is, to use electro-optic modulation technology. In the existing light source system modulated by electro-optical modulation technology, there are two schemes of direct modulation and indirect modulation. Direct modulation is realized by directly changing the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/102
Inventor 袁国慧王卓然许洁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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