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High-speed optical soliton transmission system under Raman amplification and computing method for soliton spectrum

A Raman amplification and transmission system technology, applied in transmission systems, electromagnetic wave transmission systems, optics, etc., can solve the problems of complex optical soliton transmission spectrum, in-depth research limitations, difficult pulse time-domain waveforms, etc., to achieve simple structure and low price. , good effect

Inactive Publication Date: 2010-03-10
LIAOCHENG UNIV
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Problems solved by technology

At present, most of the research on optical fiber Raman amplification at home and abroad focuses on the selection and optimization of the number, power, wavelength, etc. of pump sources in the linear transmission system. Using autocorrelation technology to measure pulse time domain changes, it is difficult to accurately judge pulse time domain waveform and other parameters, and the transmission spectrum of optical solitons is complex, so in-depth research in this field is limited

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  • High-speed optical soliton transmission system under Raman amplification and computing method for soliton spectrum
  • High-speed optical soliton transmission system under Raman amplification and computing method for soliton spectrum
  • High-speed optical soliton transmission system under Raman amplification and computing method for soliton spectrum

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Embodiment Construction

[0009] exist figure 1 Among them, the 10GHz high-speed optical pulse (1) is amplified by the appropriate power of the erbium-doped fiber amplifier (2) to form an optical soliton pulse. At this time, the characteristic parameters such as the waveform of the input soliton pulse can be measured by using the second harmonic-frequency resolution optical gate technology. Then the optical solitons are input into the optical fiber (3) for transmission; the continuous pumping light emitted by the Raman laser (4) is adjusted by the polarization controller (5) and then pumped backwards by the multiplexer (6) into the transmission optical fiber. The optical soliton signal transmitted in the medium realizes distributed Raman amplification. Finally, the optical pulse measurement or transmission can be performed at the measuring instrument or at the output port (7).

[0010] Considering that this system adopts the Raman amplification of continuous pump wave 1450nm backward pumping, the effe...

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Abstract

The invention discloses a high-speed optical soliton transmission system under Raman amplification and a computing method for a soliton spectrum, which build the high-speed optical soliton transmission system, modify a soliton transmission equation and give the computing method for the soliton spectrum by adopting backward pump Raman amplification technology. The high-speed soliton pulse transmission system built by the invention has good performance, a simple structure, low cost and easy use, and overcomes the shortages of the prior optical pulse transmission system; and the corresponding computing method provides powerful support for pulse transmission system optimization and intensive study of the field. The system and the computing method can be applied in the fields of high-speed pulse transmission and high-speed communication.

Description

Technical field [0001] The invention relates to a high-speed optical soliton transmission system under Raman amplification and a calculation method for the soliton spectrum, which can be applied to the fields of high-speed optical pulse transmission and high-speed communication. Background technique [0002] The Raman amplification in the present invention is all-optical amplification based on the principle of stimulated Raman scattering and using optical fiber as a gain medium. Compared with rare earth-doped optical fiber amplification, it has a larger gain bandwidth and flexible gain Spectral region, lower amplifier spontaneous emission noise, and the ability to effectively suppress the degradation of the signal-to-noise ratio have gained more and more applications in optical fiber transmission systems in recent years. At present, most of the research on optical fiber Raman amplification at home and abroad focuses on the selection and optimization of the number, power, wav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/37G02F1/39G02F1/35H04B10/17H01S3/067H04B10/508
Inventor 郑宏军刘山亮黎昕
Owner LIAOCHENG UNIV
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