Device for measuring shaping index of all-optical regenerator

Abstract

The invention discloses a device for measuring the shaping index of an all-optical regenerator. The device comprises an optical signal generation unit, a power-adjustable optical amplifier, an ASE noise loading module, an optical splitter, an all-optical regenerator to be measured and an optical power meter, specific test time, the noise loading power of the ASE noise loading module is adjusted; completing the measurement of the power transfer function of the to-be-measured all-optical regenerator, the gain size of the working point, the optical signal to noise ratio of the input degradation signal and the total gain of the degradation signal, and finally calculating an optical shaping index parameter which can be used for representing the optical signal to noise ratio improvement capability of the all-optical regenerator according to the measurement index.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and more specifically relates to a measuring device for the shaping index of an all-optical regenerator. Background technique [0002] With the rapid growth of capacity requirements of optical communication systems, optical networks are developing towards intelligent all-optical networks and dynamic resource scheduling. In order to ensure the stability and reliable service of the optical communication system, it is necessary to monitor the optical performance of the optical network performance or the all-optical information processing devices that make up the optical network. Optical Signal-to-Noise Ratio (OSNR) has become one of the most important performance monitoring parameters of optical network nodes. The traditional optical signal-to-noise ratio measurement method first uses a spectrometer to measure the out-of-band noise, and then interpolates and integrates the out-of-band...

AI Technical Summary

Problems solved by technology

However, these methods are all indirect measurement techniques based on digital signal processing algorithms in the coherent receiver, and the cost of the required measurement equipment is high; in addition, the optical receiver will introduce additional photoelectric noise, which is difficult to truly reflect the all-optical regenerator Optical signal to noise ratio performance

[0004] In short, for the measurement of OSNR or optical shaping index parameters of all-optical regenerators, the existing traditional spectrometer-based out-of-band measurement and coherent receiver-based in-band OSNR estimation methods may have measurement accuracy Low, or there are problems such as high cost of measuring devices

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