Optical Signal Relay Apparatus for Adaptive Wavelength Conversion
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Solution Overview
Problem
In WDM optical network systems, administrators face challenges in performing suitable wavelength conversion of optical signals without knowing the bandwidth and signal format set by users, which are essential for determining appropriate reception and transmission parameters.
Innovation Solution
An optical signal relay apparatus that includes reception and transmission means, channel information acquisition means, and control means. This apparatus acquires channel information of the optical signal, determines the necessary reception and transmission parameters based on this information, and applies these parameters to ensure suitable wavelength conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wavelength conversion is performed in an optical signal relay apparatus, then wavelength resources can be efficiently used, but the apparatus cannot determine appropriate reception and transmission parameters when the bandwidth and signal format of the optical signal are unknown
Solution Approach 1:
The patent applies preliminary action by measuring the spectrum of the optical signal before wavelength conversion to acquire channel information (bandwidth and signal format). This preliminary measurement enables the optical signal relay apparatus to determine appropriate reception and transmission parameters in advance, resolving the contradiction between wavelength conversion capability and lack of channel information.
Solution Approach 2:
The patent implements feedback by using the measured spectrum information to adjust and determine the reception and transmission parameters for wavelength conversion. The channel information acquisition unit provides feedback about the signal characteristics, which the control unit uses to optimize the conversion process, ensuring both adaptability and informed parameter selection.
2Adaptability or versatility
If users set bandwidth and signal format according to their application requirements, then short-term spot demand can be met, but the administrator cannot know these parameters for suitable wavelength conversion
Solution Approach 1:
The patent applies self-service by enabling the optical signal relay apparatus to automatically acquire channel information (bandwidth and signal format) through spectrum measurement, without requiring manual configuration or administrator intervention. The system serves itself by autonomously determining the appropriate parameters based on the measured signal characteristics, thus maintaining flexible wavelength usage while eliminating information loss.
3Reliability
If reception and transmission parameters are set based on known optical signal information, then suitable wavelength conversion can be performed, but this approach cannot satisfy short-term use in wavelength units with varying bandwidth and signal format
Solution Approach 1:
The patent implements dynamics by making the parameter setting process adaptive rather than static. The optical signal relay apparatus dynamically determines reception and transmission parameters based on real-time spectrum measurement of the optical signal. This dynamic approach maintains parameter setting accuracy while enabling flexibility for short-term wavelength allocation with varying bandwidth and signal format requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the optical signal relay apparatus to perform suitable wavelength conversion even when the bandwidth and signal format of the optical signal are unknown, thereby efficiently managing wavelength resources and meeting short-term spot demands in optical network systems.
Implementation Method 1
reception means for receiving a first optical signal of a first wavelength included in a wavelength-multiplexed signal to convert the received first optical signal into an electric signal
Implementation Method 2
transmission means for transmitting a second optical signal obtained by modulating a transmission light of a second wavelength based on the electric signal
Data Source
AI summary
A wavelength conversion apparatus and a wavelength conversion method capable of suitably performing wavelength conversion in accordance with channel information of an optical signal are provided. Reception means receives a first optical signal of a first wavelength included in a wavelength-multiplexed signal to convert the received first optical signal into an electric signal. Transmission means transmits a second optical signal obtained by modulating a transmission light of a second wavelength based on the electric signal. Channel information acquisition means acquires channel information of the first optical signal. Control means determines, based on the channel information, a reception parameter that the reception means applies to the reception of the first optical signal and a transmission parameter that the transmission means applies to the transmission of the second optical signal, applies the determined reception parameter to the reception means, and applies the determined transmission parameter to the transmission means.