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

A crystal fiber and optical regenerator technology, 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: 2006-01-04
NANJING UNIV OF POSTS & TELECOMM
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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

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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 is composed of an optical split 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 optical split coupling Device 1 has main and secondary output ports, the main output port 11 of optical splitting coupler 1 is connected to photonic crystal fiber 3, the output end of photonic crystal fiber 3 is connected to optical amplitude modulator 4, and the output end of optical amplitude modulator 4 Connect the optical band-pass filter 5, the output port OUT of the optical band-pass filter 5 is the output port of the regenerator; The output terminal of the RF filter 6 is connected to the input terminal of the phase shifter 7, and the output terminal of the phase shifter 7 is connected to the optical amplitude modulator 4 to form a crystal fiber soliton type all-optical regenerator.

[0017] After the design and assembly are completed, after t...

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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 for reforming and reusing the optical signal during optical signal transmission, 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 strength becomes weaker, the waveform is distorted, and the signal-to-noise ratio (S / N) reduction and timing jitter, bit error increases, affecting the performance and communication quality of the communication system. Usually, at a certain distance (position) in the system, the weakened signal is re-amplified by the method of regenerative relay forwarding, the deformed signal waveform is reshaped, the original standard waveform is restored, and the transmission is made after judgment and ret...

Claims

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Application Information

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Patent Type & Authority Applications(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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