Wavelength-Tunable Pluggable Optical Module Signal Blocking Control
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Solution Overview
Problem
In wavelength-tunable pluggable optical modules, unstable optical signals and incorrect wavelengths can be transmitted during wavelength changes, leading to communication malfunctions and quality deterioration, and existing solutions require external device control for wavelength changes.
Innovation Solution
A wavelength-tunable pluggable optical module with a control unit that blocks optical signal output, changes the wavelength, and then resumes output after the change is complete, preventing signal transmission during the process and ensuring stable wavelength changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the wavelength-tunable pluggable optical module performs wavelength change autonomously according to external control requests, then the adaptability and automation of the optical module is improved, but unstable optical signals and incorrect wavelengths may be transmitted during the transition period, causing communication malfunctions and quality deterioration
Solution Approach 1:
The control unit commands the optical power adjustment unit to block the optical signal output before the wavelength change is executed. This preliminary blocking action prevents unstable or incorrect wavelength signals from being transmitted during the transition period, ensuring communication reliability while maintaining autonomous wavelength tuning capability.
2Productivity
If the optical signal is continuously transmitted during wavelength change, then the productivity and response time of the optical module is improved, but unstable optical signals and incorrect wavelengths are transmitted, leading to communication malfunctions
Solution Approach 1:
The optical power adjustment unit blocks the optical signal output in advance before wavelength change occurs, counteracting the potential harmful effect of unstable signal transmission. This preliminary protective action eliminates communication malfunctions while allowing rapid wavelength switching to proceed without interruption.
3Reliability
If the optical power adjustment unit blocks the optical signal during wavelength change, then the reliability and signal stability are improved, but the wavelength change operation time is increased due to the additional blocking and unblocking steps
Solution Approach 1:
The wavelength-tunable pluggable optical module maintains continuous operational readiness by rapidly switching between blocked and unblocked states. The blocking action is temporary and immediately followed by unblocking once wavelength stabilization is detected, ensuring continuous useful action without prolonged interruption to communication operations.
Data Source
AI summary
A pluggable electric connector can communicate a communication data signal and a control signal with an optical communication device. An optical signal output unit is configured to be capable of selectively output a wavelength of an optical signal. An optical power adjustment unit-can adjust optical power of the optical signal. A pluggable optical receptor can output the optical signal to an optical fiber. A control unit controls a wavelength change operation according to the control signal. The control unit according to a wavelength change command, commands the optical power adjustment unit to block output of the optical signal, commands the light signal output unit to change the wavelength of the optical signal after the optical signal is blocked, and commands the light signal output unit and the optical power adjustment unit to output the optical signal after the wavelength change operation.