Microring-assisted Mach-Zehnder optical switch automatic calibration device and method

Abstract

An automatic calibration device and a calibration method of a micro ring type optical switch are disclosed. The method comprises the following steps: reading the transmission spectrum of a micro ringassisted Mach-Zehnder interference optical switch in the initial state; preprocessing the initial transmission spectrum; processing the preprocessed transmission spectrum by using a trained parametercalculation model to obtain the state parameters of the optical switch; and automatically calibrating the optical switch to a cross or pass-through state according to the state parameters. In the invention, the working state of the micro ring assisted Mach-Zehnder interference optical switch is acquired in real time by using a trained neural network model, and the working state is automatically calibrated by using an automatic control device. A machine learning algorithm is effectively combined with the working state calibration of the optical switch, which can greatly improve the calibrationefficiency of an optical switch unit and array.

Description

technical field [0001] The invention relates to the field of integrated optoelectronics, in particular to an automatic calibration method and an automatic calibration device for a microring-assisted Mach-Zehnder interference optical switch based on machine learning. Background technique [0002] With the continuous growth of network transmission data traffic, various big data applications, such as cloud computing and high-definition video, the data transmission volume continues to surge, and the scale of future data centers will continue to expand. The traditional optical-electrical-optical signal exchange method will definitely become the bottleneck of data exchange nodes due to its shortcomings such as high energy consumption and bulky volume. The optical interconnection technology using all-optical switching can directly complete the exchange of information between optical channels in the optical domain. It has many advantages such as high speed, broadband, transparency, ...

AI Technical Summary

Problems solved by technology

But due to process error, the initial state of the switch is random

The traditional use of manual adjustment or on-chip optical power monitoring feedback adjustment to realize the working state calibration of the micro-ring assisted Mach-Zehnder interference optical switch has the disadvantages of complicated operation and long time consumption.

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