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Erbium-doped fiber amplifier control system

An erbium-doped optical fiber and control system technology, applied in the field of communication, can solve problems such as unfavorable cost reduction, efficiency improvement, inconvenient production and maintenance, etc., and achieve the effect of simple structure, low implementation cost and easy implementation

Inactive Publication Date: 2018-04-27
TIANJIN SINO GERMAN VOCATIONAL TECHNICAL COLLEGE
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  • Application Information

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Problems solved by technology

Erbium-doped fiber amplifiers with different functions have different parameters in the production process, and need to be matched with different control systems, which makes the production and maintenance of the control system of erbium-doped fiber amplifiers very inconvenient, which is not conducive to reducing costs and improving efficiency

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  • Erbium-doped fiber amplifier control system
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  • Erbium-doped fiber amplifier control system

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Embodiment Construction

[0031] In order to solve the defects of the prior art, the present invention provides an erbium-doped fiber amplifier control system. The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] figure 1 It is a schematic diagram of the connection of each module of an erbium-doped fiber amplifier control system in an embodiment of the present invention; as figure 1 As shown, the control system in the embodiment of the present invention includes 6 optical power detection modules, 2 pump laser driver modules and 1 adjustable optical attenuator driver module, and these modules are integrated on one circuit board.

[0033] Wherein, the input optical power detection end and the output optical power detection end of each power control loop are connected to t...

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Abstract

The invention aims to provide an erbium-doped fiber amplifier control system. In the hardware structure, the control system can be applied to erbium-doped fiber amplifiers of various functions. The control system comprises a control module, three power control loops, two pump laser driver modules, and one adjustable light attenuation driver module, wherein both an input light power detection end and an output light power detection end of each power control loop are connected with a signal input end of the control module, a drive signal input end of each pump laser driver module is connected with a signal output end of the control module, a drive signal output end of each pump laser driver module is used for connecting with a pump laser of a to-be-controlled erbium-doped fiber amplifier, adriver signal input end of the adjustable light attenuation driver module is connected with the signal output end of the control module, and a driver signal output end of the adjustable light attenuation driver module is used for connecting with a to-be-controlled adjustable light attenuator.

Description

technical field [0001] The invention relates to the communication field, in particular to an erbium-doped optical fiber amplifier control system. Background technique [0002] Erbium-doped fiber amplifier (EDFA) uses fiber doped with erbium ions as the gain medium, and the particle inversion occurs under the excitation of pump light to realize the amplification of optical signals. Erbium-doped fiber amplifier is one of the most important core devices in optical communication system. [0003] In optical communication systems, erbium-doped fiber amplifiers with multiple functions are required, such as pre-amplifiers, line amplifiers, power amplifiers, etc.; the control methods of each function of erbium-doped fiber amplifiers are different, such as: automatic power control, automatic gain control , Automatic current control, etc. Erbium-doped fiber amplifiers with different functions have different parameters in the production process, and need to be matched with different c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/291H04B10/293H01S3/10
CPCH04B10/2912H01S3/10015H04B10/293
Inventor 张志利郭卉郭肖鹏
Owner TIANJIN SINO GERMAN VOCATIONAL TECHNICAL COLLEGE
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