Millimeter wave signal photonics generating method and millimeter wave signal photonics generating device

A production device and photonics technology, applied in the field of microwave photonics, to achieve the effect of narrow line width and good spectral purity

Inactive Publication Date: 2015-05-13
JILIN UNIV
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  • Description
  • Claims
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Problems solved by technology

However, due to the limitation of the processing rate of electronic devices, traditional electronic technology is gradually approaching the bottleneck for the generation of high-speed microwave signals.

Method used

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  • Millimeter wave signal photonics generating method and millimeter wave signal photonics generating device

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Embodiment 1

[0021] The tunable laser is Santec's TSL-510 tunable laser. The wavelength range of the laser is 1510nm~1630nm; The half-wave voltage of the Zendel modulator and the second Mach-Zehnder modulator is 5.5V, and the half-wave voltage of the phase shifter is 15V; YOFC's high nonlinear optical fiber: the length is 1000 meters, the gain and loss The peak value is 5dB, and when the optical carrier wavelength is 1550nm, the line width of the stimulated Brillouin gain spectrum is Γ B =30MHz, stimulated Brillouin frequency shift f b =9.2GHz; the isolation degree of the optical isolator is greater than 40dB; the intensity modulator is MXAN-LN-20 of Photline Company, the half-wave voltage is 5.5V, and the bandwidth is 20GHz; the microwave signal source is the microwave signal generator E8257D produced by Agilent Company , the output frequency range is 100kHz to 70GHz; the bandwidth of the first photodetector is 60GHz; the bandwidth of the second photodetector is 40GHz; the bandwidth of t...

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Abstract

The invention discloses a millimeter wave signal photonics generating method based on a highly non-linear optical stimulated Brillouin scattering effect and a millimeter wave signal photonics generating device, and belongs to the technical field of microwave photonics. The device consists of a tunable laser, a first coupler, two parallel Mach - Zehnder modulator, a first DC power supply, the second DC power supply, the third DC power supply, isolators, second coupler, a first photo detector, spectrum analyzers, high nonlinear optical circulator, a second photo detector, microwave amplifiers, intensity modulator, a fourth DC power supply and a microwave signal source. The millimeter wave signal generating device according to the selected output frequency is highly nonlinear optical fiber different in 54GHz to 66GHz. Since the stimulated Brillouin frequency shift value and the wavelength of the pump light of relevant, also can adjust the wavelength tunable laser, millimeter wave signal generator output frequency of the device is adjustable within a certain range.

Description

technical field [0001] The invention belongs to the technical field of microwave photonics, and in particular relates to a photonics generation method and device of a millimeter wave signal based on a highly nonlinear optical fiber stimulated Brillouin scattering effect. Background technique [0002] High-quality microwave / millimeter wave signal sources play an extremely important role in systems such as wireless communications, optical radio frequency networks, military radar systems, and inter-satellite links. However, due to the limitation of the processing rate of electronic devices, traditional electronic technology is gradually approaching the bottleneck for the generation of high-speed microwave signals. The use of photonic technology to generate, process and transmit high-frequency microwave / millimeter wave signals can not only easily solve the bottleneck problem of electronic technology processing speed, but also transmit signals to longer distances, and has low los...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25G02F1/35
Inventor 董玮肖永川陈维友张歆东阮圣平王鑫
Owner JILIN UNIV
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