Frequency Separator With Adjacent Filter Spacing Beyond Bandwidth
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Solution Overview
Problem
In optical communication systems, the broadened optical spectrum leads to energy leakage between frequency bands, causing errors in quantization, even when using red chirp phenomena and narrow frequency distribution probe signals.
Innovation Solution
A frequency separator with multiple filters separates light into distinct frequency bands, ensuring that the center frequencies of adjacent bands are separated beyond the bandwidth of each filter, preventing energy leakage and reducing quantization errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the width of the optical pulse is narrowed to increase transmission speed, then the transmission speed is improved, but the optical spectrum is broadened causing energy leakage between frequency bands
Solution Approach 1:
The optical spectrum is segmented into multiple distinct frequency bands using a series of filters. Each filter is assigned to a specific frequency band, and the center frequencies of adjacent bands are separated beyond the bandwidth of each filter to prevent energy leakage. This segmentation approach allows narrow optical pulses to be transmitted at high speed while maintaining clear separation between frequency components.
2Measurement precision
If light is separated into multiple frequency bands for quantization, then the quantization precision is improved, but energy leakage from one frequency band to adjacent bands causes quantization errors
Solution Approach 1:
Multiple filters serve as intermediary elements that mediate the separation between adjacent frequency bands. Each filter is positioned at a specific center frequency, and the filters collectively create isolation zones between frequency bands. This intermediary filtering approach enables precise quantization of optical signals while preventing energy leakage-induced errors between adjacent frequency bands.
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
This approach effectively suppresses quantization errors by ensuring that energy from one frequency band does not leak into adjacent bands, improving the accuracy of optical A/D conversion and signal processing.
Implementation Method 1
a plurality of filters to separate light having a plurality of first optical pulses, each of the first optical pulses having one of a plurality of frequencies, into a plurality of light components, each of the light components being to have one of a plurality of frequency bands corresponding to the plurality of frequencies
Data Source
AI summary
A frequency separator includes a plurality of filters to separate light having a plurality of optical pulses, each of the optical pulses having one of a plurality of frequencies, into a plurality of light components, each of the light components being to have one of a plurality of frequency bands corresponding to the plurality of frequencies, in which among the plurality of filters, a center frequency of a first frequency band of a first filter and a center frequency of a second frequency band, adjacent to the first frequency band, of a second filter are separated beyond a bandwidth of each of the first and second frequency bands.