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Hybrid fiber amplifier ASE compensation parameter using method

A fiber amplifier and compensation parameter technology, applied in the field of hybrid fiber amplifier ASE compensation parameters, to achieve the effect of precise gain control, improve the applicable range and application occasions, and improve the effect of application breadth

Active Publication Date: 2019-10-18
GUANGXUN SCI & TECH WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no explanation for the overall gain control

Method used

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  • Hybrid fiber amplifier ASE compensation parameter using method
  • Hybrid fiber amplifier ASE compensation parameter using method
  • Hybrid fiber amplifier ASE compensation parameter using method

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Effect test

Embodiment 1

[0077] Embodiment 1 of the present invention provides a method for obtaining ASE compensation parameters of a hybrid fiber amplifier, using a hybrid fiber amplifier composed of a Raman fiber amplifier and an erbium-doped fiber amplifier, and the hybrid fiber amplifier is connected to a test optical path, such as figure 1 As shown, the test optical path is connected sequentially to form a light source 1, an adjustable attenuator 2, a hybrid fiber amplifier 4, and a spectrum analyzer 5, and the control port of the hybrid fiber amplifier 4 is connected to a control device, such as figure 2 As shown, the method includes:

[0078] In step 201, according to one or more groups of optical signal parameters involved in the working environment of the hybrid fiber amplifier 4, the light source 1 and the adjustable attenuator 2 are set so that the optical signal entering the hybrid fiber amplifier 4 meets specified requirements .

[0079] Wherein, the specified requirement may be that t...

Embodiment 2

[0103] In addition to providing a method for obtaining ASE compensation parameters of a hybrid fiber amplifier as described in Embodiment 1, the embodiment of the present invention further provides a method for using ASE compensation parameters of a hybrid fiber amplifier. The method uses the method described in Embodiment 1. The hybrid optical fiber amplifier ASE compensation parameter acquisition method is calculated to obtain multiple ASE compensation parameters (refer to image 3 The ASE compensation parameter display form shown), and the mapping relationship between each ASE compensation parameter and the working parameters of the Raman fiber amplifier and the erbium-doped fiber amplifier of the corresponding import formula, such as Figure 5 As shown, the method specifically includes the following execution steps:

[0104] In step 301, the mapping relationship is stored in the control device of the hybrid fiber amplifier 4 .

[0105] In the specific implementation proce...

Embodiment 3

[0116] After providing a hybrid fiber amplifier ASE compensation parameter usage method as described in Embodiment 2, the embodiment of the present invention further provides a hybrid fiber amplifier ASE compensation parameter usage device, which can be used to complete the embodiment The content of the method described in 2. Such as Figure 6-8 As shown, the device for use includes a light source 1, an adjustable attenuator 2, and a hybrid fiber amplifier 4, wherein the light source 1, the adjustable attenuator 2, and the hybrid fiber amplifier 4 are connected in sequence, wherein the hybrid fiber amplifier 4 The control port of the control port is connected with the control device 6, and the control device includes a Raman fiber amplifier control subunit 6-1 and an erbium-doped fiber amplifier control subunit 6-2, specifically:

[0117] The optical signal output port of the Raman fiber amplifier is connected to the first signal splitting coupler, the splitting port of the f...

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Abstract

The invention relates to the technical field of optical amplifiers, and provides a hybrid fiber amplifier ASE compensation parameter using method. The use method comprises the following steps: configuring working parameters of a Raman fiber amplifier and an erbium-doped fiber amplifier in the hybrid fiber amplifier according to a set target gain parameter value; searching target ASE compensation parameters corresponding to the configured working parameters of the Raman fiber amplifier and the erbium-doped fiber amplifier from the mapping relationship; and calculating the sum of the input optical power of the erbium-doped fiber amplifier, the target ASE compensation parameter and the gain of the erbium-doped fiber amplifier, and adjusting the gain of the Raman fiber amplifier and / or the erbium-doped fiber amplifier to enable the correspondingly adjusted sum to be equal to the target gain parameter value. According to the invention, different ASE compensation values are obtained by usingan analog working mode and are used for controlling the gain of the EDFA in an actual application occasion, so that the hybrid optical fiber amplifier can achieve an accurate gain control effect.

Description

【Technical field】 [0001] The invention relates to the technical field of optical amplifiers, in particular to a method for using ASE compensation parameters of a hybrid optical fiber amplifier. 【Background technique】 [0002] With the development of high-speed optical communication systems, especially the commercialization of 100G and beyond 100G optical fiber communication systems, the system has higher and higher requirements for optical signal-to-noise ratio. Improving the optical signal-to-noise ratio of the system is a problem that must be solved on every optical communication system equipment. A Raman fiber amplifier (hereinafter referred to as RFA) is increasingly favored by equipment manufacturers due to its ability to improve the optical signal-to-noise ratio. Hybrid fiber amplifier (Hybrid fiber amplifier, hereinafter referred to as HYFA) is a fiber amplifier that combines Raman fiber amplifier RFA and Erbium Doped Fiber Application Amplifier (hereinafter referred...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/293H04B10/071
CPCH04B10/293H04B10/071
Inventor 罗旋陶金涛付成鹏方迪余振宇
Owner GUANGXUN SCI & TECH WUHAN
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