Optical fiber type terahertz wave generation device and method based on modulation instability

A modulation instability and generation method technology, applied in the field of optically generated terahertz waves, can solve problems such as unfavorable practicality, low frequency multiplication, and high cost of terahertz systems, and achieve the effects of simple and compact structure, cost saving, and lower bandwidth requirements
CN102544985AInactive Publication Date: 2012-07-04HUNAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HUNAN UNIV
Publication Date
2012-07-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an optical fiber type terahertz wave generation device and method based on modulation instability. The terahertz wave generation device based on modulation instability in optical fiber comprises a monomode laser, a phase modulation, a microwave source, an intensity modulator, an optical amplifier, a tunable filter, a photoelectric detector and an antenna. The optical fiber type terahertz wave generation device disclosed by the invention has simple and compact structure, can realize generation of tunable terahertz waves by adjusting the frequency of a microwave drive signal and has the advantages of greatly reducing the bandwidth requirements of the device and saving the cost of a system.
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Description

technical field

[0001] The invention relates to optically generated terahertz wave technology in the field of microwave photonics, in particular to a fiber-type terahertz wave generation device and method based on modulation instability. Background technique

[0002] At present, the terahertz frequency band, which is in the microwave frequency band and the light wave frequency band, has attracted the attention of many scientific research institutions and companies. The terahertz wave in the 0.1-0.3THz frequency band has great development potential in high-speed wireless communication, military radar, imaging and other application fields due to its relatively small transmission loss in the atmosphere and relatively high power generation. It is a very popular emerging field. Research areas. Since this frequency band is closer to the microwave frequency band, electronic technology is often used to generate terahertz waves, such as electronic lasers, electronic solid-state sour...

Claims

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