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High efficiency simulating method for wide band optical fiber Raman amplifier

A technology of Raman amplifiers and simulation methods, applied in optics, instruments, nonlinear optics, etc., can solve problems such as increasing operation and maintenance costs, and achieve the effects of simplifying structure, facilitating use and maintenance, and simplifying the structure of dispersion compensation nodes

Inactive Publication Date: 2009-01-14
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This further increases the complexity of the system and increases the cost of operation and maintenance

Method used

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  • High efficiency simulating method for wide band optical fiber Raman amplifier
  • High efficiency simulating method for wide band optical fiber Raman amplifier
  • High efficiency simulating method for wide band optical fiber Raman amplifier

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Embodiment Construction

[0052] In order to overcome the above-mentioned shortcomings in the process of signal amplification and dispersion compensation in optical fiber communication systems, the present invention proposes a method for amplifying the signal while compensating the dispersion of the optical signal in a broadband range (such as C+L band). Discrete Dispersion Compensated Fiber Raman Amplifier.

[0053] The invention is mainly composed of six components: a semiconductor laser drive power supply, a semiconductor pump laser (LD), a dispersion compensation module, an isolator, a coupler, and a depolarizer.

[0054] The scheme adopted by the present invention to solve the technical problem is: (1) an efficient and stable simulation algorithm and software system are designed. The algorithm combines the shooting method, the improved Newton method and the Broyden rank-one method, and can quickly and accurately simulate the gain and noise characteristics of fiber Raman amplifiers with various str...

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Abstract

A method for simulating wide-band optical fiber Raman amplifier includes solving out the same signal, forward pumping Raman equation under pumping configuration, setting Jacobi matrix, obtaining Jacobi matrix by solving out Raman equation, revising input end power of backward pumping light by improved Newton means, judging whether allowable error is reached or not, judging whether it is possible to use Broyden rank means to calculate Jacobi matrix of next target shooting or not, calculating out relevant value by Broyden rank means and entering next output result.

Description

[0001] The present invention is a divisional application of the invention application of the discrete dispersion compensation type broadband optical fiber Raman amplifier and its parameter determination method. The filing date of the original application: October 11, 2005, the application number: 200510015366.7, and the name: discrete dispersion Compensated broadband fiber Raman amplifier and its parameter determination method. technical field [0002] The invention relates to the field of optical fiber communication, in particular to a high-performance all-optical amplifier capable of synchronously compensating for transmission loss and dispersion of optical signals. Specifically, the invention relates to a high-efficiency simulation method of a broadband optical fiber Raman amplifier. Background technique [0003] With the rapid development of the Internet, the demand for information in the world is growing explosively, which brings enormous pressure to the optical fiber c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/39H04B10/12
Inventor 宁继平韩群陈志强孙良勇庞璐
Owner TIANJIN UNIV