Photonic generating device for tunable multi-output microwave signals

A technology of microwave signal and generating device, applied in the field of microwave photonics, can solve the problem of phase noise deterioration at high frequency of tuning bandwidth, etc., and achieve the effect of narrow line width and good spectral purity

Active Publication Date: 2019-04-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional method of generating microwave signals is generated by electrical means, and the electronic bottleneck effect of electrical devices, the tuning bandwidth, and the deterioration of phase noise at high frequencies have made the research on the generation of microwave signals by electrical methods gradually reach the bottleneck.

Method used

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  • Photonic generating device for tunable multi-output microwave signals
  • Photonic generating device for tunable multi-output microwave signals
  • Photonic generating device for tunable multi-output microwave signals

Examples

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Embodiment 1

[0019] The tunable laser is the TSL-510 tunable laser of Santec Company, and the wavelength range of the laser is 1510nm~1630nm; the first coupler and the second coupler are FBT Fiber Optic Splitter / FBTFiber of Snow-Sea Company, and the splitting ratio is 1: 1; The Mach-Zehnder modulator is the intensity modulator MX-LN-40-PFA-PFA of Photline Company, with a bandwidth of 40GHz and a half-wave voltage of V π 5.5V; DC regulated power supply is GPS-4303C of GW Instek, the output voltage range is adjustable from 1V to 20V; the arbitrary waveform generator is M8195A of Agilent; the tunable optical filter is XTM-50U, and the wavelength tuning range In 1480nm~1620nm, the tuning accuracy is 5pm, the minimum full width at half maximum (FWHM) is 32pm (4GHz), the maximum full width at half maximum (FWHM) is 650pm (80GHz), the bandwidth tuning accuracy is 1pm, and the insertion loss is 5dB; the erbium-doped fiber amplifier is WZEDFA-SO-P-S-0-1-2 of Wuxi Zhongxing Optoelectronics Technolog...

Embodiment 2

[0022] The tunable laser is the TSL-510 tunable laser of Santec Company, and the wavelength range of the laser is 1510nm~1630nm; the first coupler and the second coupler are FBT Fiber Optic Splitter / FBTFiber of Snow-Sea Company, and the splitting ratio is 1: 1; The Mach-Zehnder modulator is the intensity modulator MX-LN-40-PFA-PFA of Photline Company, with a bandwidth of 40GHz and a half-wave voltage of V π 5.5V; DC regulated power supply is GPS-4303C of GW Instek, the output voltage range is adjustable from 1V to 20V; the arbitrary waveform generator is M8195A of Agilent; the tunable optical filter is XTM-50U, and the wavelength tuning range In 1480nm~1620nm, the tuning accuracy is 5pm, the minimum full width at half maximum (FWHM) is 32pm (4GHz), the maximum full width at half maximum (FWHM) is 650pm (80GHz), the bandwidth tuning accuracy is 1pm, and the insertion loss is 5dB; the erbium-doped fiber amplifier is WZEDFA-SO-P-S-0-1-2 of Wuxi Zhongxing Optoelectronics Technolog...

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Abstract

The invention relates to a photonic generating device for tunable multi-output microwave signals, which belongs to the technical field of microwave photonics. The photonic generating device for tunable multi-output microwave signals is composed of a tunable laser, a first coupler, a Mach-Zehnder modulator, a DC voltage-stabilized power supply, an arbitrary waveform generator, a tunable optical filter, an Erbium-doped optical fiber amplifier, a phase modulator, an isolator, a highly-nonlinear optical fiber, a circulator, a second coupler, a photodetector, a microwave power amplifier, an electric filter, a power splitter and a spectrum analyzer. Narrow-linewidth and good-spectral purity microwave signals are generated through a photoelectric oscillation technology based on stimulated Brillouin scattering effects of the multi-pumped and highly-nonlinear optical fiber, and the spectral line width of the output signals of the microwave signal generating device is equal to the spectral linewidth of Brillouin gains. Through changing the output of the arbitrary waveform generator, the amount of the pump light and the wavelength can be changed, and thus, multi-frequency output of the microwave signals can be realized, and the frequency is tunable in a certain range. The device disclosed in the invention has an optical output mode and an electric output mode.

Description

technical field [0001] The invention belongs to the technical field of microwave photonics, and in particular relates to a photonics generating device for tunable multi-output microwave signals based on multi-pump and highly nonlinear optical fiber stimulated Brillouin scattering effect. Background technique [0002] Microwave signal sources are widely used in communication, radar, transportation, medical treatment, detection and other fields, including high-speed point-to-point wireless local area network, mobile broadband wireless system, inter-satellite link, optical radio frequency network, military radar system, high-resolution high-speed automotive radar, biological imaging for cancer identification, non-destructive testing, etc. With the rapid development of communication technology, the amount of information transmission is increasing day by day, various types of wireless communication systems have been developed one after another, and the available spectrum is becom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50H04B10/516H04B10/548H04B10/70H04B10/80
CPCH04B10/503H04B10/516H04B10/548H04B10/70H04B10/802H04B10/806
Inventor 董玮王悦张歆东
Owner JILIN UNIV
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