Gain control method and system for optical transmission, optical amplifier and optical module
An optical amplifier and gain control technology, applied in transmission systems, electromagnetic wave transmission systems, electrical components, etc., can solve problems such as difficult real-time processing, unable to ensure the normal operation of PIN receivers, and affecting stable output.
Active Publication Date: 2020-12-15
南京捷澳德信息科技有限公司
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Problems solved by technology
In the related technology, in the process of gaining the transmitted light through the SOA optical amplifier, it is difficult to realize the real-time processing of the large-scale and high-frequency changes of the input optical power for the tracking control of the gain parameters of the SOA optical amplifier. It affects the stable output of the SOA optical amplifier to the gain light, and thus cannot guarantee the normal operation of the PIN receiver
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[0054] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0055] figure 1 is a flow chart of a gain control method for optical transmission shown according to an exemplary embodiment, as shown in figure 1 As shown, it is applied to an optical amplifier, the optical amplifier is connected to an optical module capable of receiving and sending a target optical signal through multiple optical channels through an optical receiver, and the target optical signal is an optical signal sent by a preset light source, the method includes:
[0056] In step 101, a corresponding gain parameter is calibrated for each segment boundary value among a plurality of segment boundary values within the effective incident optical power r...
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The invention relates to an optical transmission gain control method, a system, an optical amplifier and an optical module. The method comprises the following steps: calibrating a corresponding gain parameter for each segment boundary value in a plurality of segment boundary values in an effective incident light power range of the optical amplifier; when the optical amplifier receives incident light, amplifying the incident light power of the optical amplifier on any optical channel in the plurality of optical channels through the optical amplifier according to the gain parameter correspondingto the maximum segmentation boundary value to serve as the incident light power of the optical receiver; and in the process of continuously receiving light by the optical receiver, adjusting the gainparameter of the optical amplifier according to the number of the optical channels of which the incident light power of the optical receiver is changed to exceed the preset optical power range and the gain parameter corresponding to each segment boundary value. The gain parameter of the optical amplifier can be adjusted in real time by monitoring the change condition of the incident light power of the optical receiver, so that the stability of the output light power of the optical amplifier is ensured. The normal work of the optical receiver is further ensured.
Description
technical field [0001] The present disclosure relates to the technical field of optical fiber communication, and in particular, to a gain control method and system for optical transmission, an optical amplifier and an optical module. Background technique [0002] With the development of the Internet, cloud computing and big data services, the application of 100G optical transmission is becoming more and more widespread. In particular, with the increasing demand for long-distance optical transmission in recent years, the 100G 40KM optical The demand for applications is also gradually increasing. In the application scenario of 100G 40km long-distance optical transmission, the traditional solution needs to use DWDM (Dense Wavelength Division Multiplexing, Dense Wavelength Division Multiplexing) equipment to increase the transmission distance, but its networking is complex, requiring additional equipment costs and maintenance costs Higher, and the use of 100GBASE-ER4 / LR4 optica...
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IPC IPC(8): H04B10/293H04B10/291
CPCH04B10/2914H04B10/293
Inventor 周长征王向前蔡尧
Owner 南京捷澳德信息科技有限公司