Crystal optical fiber solition type full light regenerator and its light signal regenerating method

A technology of crystal fiber and optical regenerator, which is applied in optics, instruments, optical components, etc., can solve the problems of high price, low stability and reliability, achieve simple and reliable structure, and realize the effect of timing judgment and retiming

Inactive Publication Date: 2008-10-08
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

But there are also some shortcomings, such as the construction of this regenerator needs to configure two wavelength converters with specific performance, complex clock recovery loops and semiconductor optical amplifiers, wavelength-tunable ultrashort pulse semiconductor lasers, optical clock pulse generators, etc. Active optical devices, the price of these accessories is high, but the stability and reliability are low

Method used

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  • Crystal optical fiber solition type full light regenerator and its light signal regenerating method

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Embodiment Construction

[0016] The regenerator consists of an optical branch coupler 1, a photodetector 2, a photonic crystal fiber 3, an optical amplitude modulator 4, an optical bandpass filter 5, a radio frequency filter 6, and a phase shifter 7; The device 1 has two output ports, the main and the auxiliary, the main output port 11 of the optical split coupler 1 is connected to the photonic crystal fiber 3, the output end of the photonic crystal fiber 3 is connected to the optical amplitude modulator 4, and the output end of the optical amplitude modulator 4 is connected. Connect the optical bandpass filter 5, the output port OUT of the optical bandpass filter 5 is the output port of the regenerator; the secondary output port 12 of the optical split coupler 1 is connected to the input end of the photodetector 2, and the photodetector 2 The output end of the RF filter 6 is connected to the input end of the phase shifter 7, and the output end of the phase shifter 7 is connected to the optical amplitu...

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Abstract

The crystal optical fiber soliton type full light regenerator and its light signal regenerating method is used in the light signal transmission for the reforming and reusing of light signal. Of the regenerator, the light shunting coupler has two, one main and one auxiliary, output ports, the main output port is connected to the photon crystal fiber, the photon crystal fiber has output is connected to the light amplitude modulator, the light amplitude modulator has output connected to the light band-pass filter, and the light band-pass filter has output port (OUT) as the output port of the light regenerator. The light shunting coupler has auxiliary output port connected to the output of the light detector, the light detector has output connected to a RF filter, the RF filter has output connected to the input of phase shifter, and the phase shifter has output connected to the light amplitude modulator, to constitute the crystal optical fiber soliton type full light regenerator.

Description

technical field [0001] The invention relates to an amplifying device used for reforming and reusing the optical signal during transmission of the optical signal, and belongs to the technical field of optical signal amplifier manufacturing. Background technique [0002] In an ordinary low-speed electrical communication system, when the electrical pulse signal representing information is transmitted for a certain distance, due to the influence of energy loss, dispersion and noise along the line, its intensity becomes weak, the waveform is distorted, and the signal-to-noise ratio (S / N) decrease and timing jitter and bit error increase, which affects the performance and communication quality of the communication system. Usually, at a certain distance (position) in the system, the method of regenerative relay and forwarding is used to re-amplify the weakened signal, reshape the deformed signal waveform, restore the original standard waveform, and send it after judgment and re-ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/09G02B27/10G02B6/26G02F1/35G02F1/39H04B10/18H04B10/508
Inventor 杨祥林陈鹤鸣诸波
Owner NANJING UNIV OF POSTS & TELECOMM
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