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Novel erbium-doped optical fiber amplifier

An erbium-doped fiber and amplifier technology is applied in the field of new erbium-doped fiber amplifiers, which can solve the problem of not being able to adjust its optimal working state, and achieve the effects of improving automatic adjustment performance and automatic adjustment accuracy.

Inactive Publication Date: 2016-12-14
GUILIN TRYIN TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The invention provides a new type of erbium-doped optical fiber amplifier, which solves the problem that it cannot adjust its own best working state according to the input optical signal power and the optical signal output power at the same time

Method used

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  • Novel erbium-doped optical fiber amplifier

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with examples, but the present invention is not limited to these examples.

[0017] The new type of erbium-doped fiber amplifier includes an optical coupler, a first optical isolator, a wavelength division multiplexer, a second optical isolator, an input detection unit, a pump laser, an output detection unit and a control unit; the optical coupler and the external optical signal The optical coupler is connected to the second optical isolator through the first optical isolator and the wavelength division multiplexer through the erbium-doped optical fiber; the optical coupler is connected to the control unit through the input detection unit; the wavelength division multiplexer is pumped The laser is connected with the control unit; the second optical isolator is connected with the control unit through the output detection unit, and the second optical isolator is connected with the external load.

[0018]...

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Abstract

The invention provides a novel erbium-doped optical fiber amplifier. The novel erbium-doped optical fiber amplifier is provided with an input detection unit, a pumping laser, an output detection unit and a control unit; input power and output power are both detected; the control unit performs automatic regulation of temperature and power through the pumping laser according to the detection result, so as to enable the amplifier to operate at the optimal state; a temperature automatic control part comprises a temperature detection module and a temperature regulation module, and a feedback closed loop control structure is formed; a power automatic control part comprises a power detection module and a power control module, and a feedback closed loop control structure is formed; and the closed loop control structure can improve the automatic regulation precision of the temperature and the power, thereby improving the automatic regulation performance of the amplifier.

Description

technical field [0001] The present invention relates to amplifiers, in particular to novel erbium-doped fiber amplifiers. Background technique [0002] Erbium-doped fiber amplifiers are widely used in dense wavelength division multiplexing optical communication systems and optical fiber cable television systems. The erbium-doped fiber amplifier directly amplifies the optical signal without photoelectric-optical conversion, and has the characteristics of large output power, high gain, wide operating frequency range, polarization-independent, low noise index, and amplification characteristics independent of system bit rate and data format. . [0003] The existing adaptive erbium-doped fiber amplifier changes the pumping parameters of the amplifier according to the power of the output optical signal, thereby adjusting the gain of the amplifier. Its disadvantage is that it cannot select the best working parameters according to the power of the input optical signal, and it is di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/094H04B10/294
CPCH01S3/067H01S3/094H04B10/2942
Inventor 姚峰
Owner GUILIN TRYIN TECH CO LTD
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