Magneto-optical switch control method, device, and optical communication and optical integration system

By using high-voltage pulse drive voltage and adaptive control based on dual criteria, the problems of slow switching speed, severe heat generation, and signal jitter in magneto-optical switches are solved. This achieves high-speed switching, low Joule heating, and jitter-free synchronous on/off, improving the reliability of magneto-optical switch status judgment.

CN122226025BActive Publication Date: 2026-07-17E-PHOTICS(SHENZHEN)COMM INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
E-PHOTICS(SHENZHEN)COMM INC
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing magneto-optical switches have slow switching speeds, generate significant heat, and suffer from signal jitter due to asynchrony between the control signal and the input optical signal. Furthermore, their status judgments are inaccurate, failing to meet the requirements for high-speed and high-reliability applications.

Method used

By employing a high-voltage pulse drive voltage and combining it with dual criteria of drive current and insertion loss, adaptive variable pulse width control is achieved. This ensures that the drive voltage is immediately turned off after the magnetic field saturates. Furthermore, the system is aligned with the input optical signal through a synchronous electrical signal triggering mechanism to detect the status of the magneto-optical switch in real time.

Benefits of technology

It significantly improves the switching speed of magneto-optical switches, reduces Joule heating, eliminates signal jitter, enhances the reliability of status judgment, and meets the requirements of high-speed switching and low energy consumption.

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Abstract

This invention discloses a magneto-optical switch control method, device, and optical communication and optical integration system, relating to the field of magneto-optical switch control technology. The method includes: responding to a switch control signal triggered by an external input device and outputting a corresponding electrical signal; upon receiving an indication flag from the electrical signal, controlling a driving device to apply a driving voltage to the magneto-optical switch to establish a magnetic field for switching between on / off states; acquiring the driving current, input optical power, and output optical power of the magneto-optical switch, and calculating the current insertion loss value based on the input and output optical power; when the driving current meets a preset condition characterizing magnetic field saturation, and the current insertion loss value meets a preset condition characterizing the on / off state, controlling the driving device to stop applying the driving voltage and maintaining the on / off state of the magneto-optical switch, thus solving problems such as slow switching speed, severe heat generation, and signal jitter caused by the control signal and input optical signal not originating from the same source in existing magneto-optical switches.
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