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Photoinjection-type chaotic photonic integration device and preparation method thereof

A photon integration and optical injection technology, which is applied in the fields of optical network and photonic signal processing, secure optical communication, and optoelectronic devices, can solve the problems that the bandwidth cannot exceed 10GHz, the chaotic laser is limited to the relaxation oscillation frequency, etc., and achieves low production cost, The effect of increased bandwidth and stable performance

Inactive Publication Date: 2013-01-16
DALIAN UNIV OF TECH
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Problems solved by technology

Prior art [1-4] due to its own structure and optical feedback, the generated chaotic laser is limited by the relaxation oscillation frequency of a single distributed feedback semiconductor laser, and the bandwidth cannot exceed 10 GHz

Method used

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  • Photoinjection-type chaotic photonic integration device and preparation method thereof
  • Photoinjection-type chaotic photonic integration device and preparation method thereof
  • Photoinjection-type chaotic photonic integration device and preparation method thereof

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Embodiment Construction

[0024] The optical injection type chaotic photonic integrated device of the present invention includes: a master distributed feedback semiconductor laser DFB 1 , a semiconductor optical amplifier SOA 2 , a passive optical waveguide 3 and a slave distributed feedback semiconductor laser DFB 4 . The main distributed feedback semiconductor laser DFB 1 generates continuous wave (continuous wave, CW) laser, which is amplified by the semiconductor optical amplifier SOA 2 and enters the passive optical waveguide 3, and then injected into the slave distributed feedback semiconductor laser DFB 4. By adjusting the semiconductor optical amplifier SOA 2, the control of the injection intensity is realized; by adjusting the central wavelength detuning between the main distributed feedback semiconductor laser DFB 1 and the slave distributed feedback semiconductor laser DFB 4, the slave distributed feedback semiconductor laser produces chaos in the bandwidth laser.

[0025] Attached below f...

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Abstract

The invention discloses a photoinjection-type chaotic photonic integration device and a preparation method thereof. The photoinjection-type chaotic photonic integration device is characterized in that a principal distributed feedback semiconductor laser generates continuous wave laser, and the laser enters a passive waveguide after being amplified by a semiconductor optical amplifier, and then is injected into a subordinate distributed feedback semiconductor laser. Chaotic laser of a bandwidth can be generated by the subordinate distributed feedback semiconductor laser by adjusting the central wavelength between the semiconductor optical amplifier and the principal distributed feedback semiconductor laser as well as the subordinate distributed feedback semiconductor laser. According to the invention, photonic integration can be realized by injecting light into the semiconductor laser to generate the chaotic laser of the bandwidth, so that the chaotic laser performance is improved, the device size is greatly reduced, the stability of the system is improved, and the method has a simple process flow, is low in implementation cost, and has a broad application prospect in the future field of optical communication and photonic signal processing.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic devices, and in particular relates to an optical injection type photon integrated device, which realizes the generation of broadband chaotic laser by a single photon device, and can be applied to the fields of confidential optical communication, optical network, photon signal processing and the like. Background technique [0002] In recent years, the generation and application of chaotic lasers have received more and more attention. Semiconductor lasers have the advantages of small size, low price, and wide application range. Therefore, chaotic laser generation based on semiconductor lasers has attracted special attention and research. At present, chaotic laser has great advantages and application potential in the fields of secure communication, automobile anti-collision radar, optical time domain reflectometer, high-speed true random code generator, sensing and optical coherence tomography...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/40G02F1/39
Inventor 赵清春殷洪玺窦欣宇曹暾
Owner DALIAN UNIV OF TECH
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