Spectral Detector Resonator Segmentation Miniaturization
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Solution Overview
Problem
Current noninvasive glucose measurement methods using spectral analysis face challenges in miniaturization for integration into mobile devices, and existing micro spectral detectors are limited in resolution and efficiency due to size constraints and optical signal processing limitations.
Innovation Solution
A spectral detector design featuring a plurality of spectral detection units with resonators of varying lengths, utilizing evanescent coupling and a lattice structure for improved optical signal processing, where each unit includes a light receiver, waveguide, and output unit arranged alternately to enhance signal modulation and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a micro spectral detector is miniaturized for mobile device integration, then the device size is reduced, but the spectral detection resolution and efficiency deteriorate
Solution Approach 1:
The detector is divided into multiple spectral detection units, each containing a resonator and optical signal processor. This segmentation allows parallel processing of different spectral components, maintaining high resolution while reducing overall device size through functional decomposition
Solution Approach 2:
The patent transitions from traditional spatial filtering methods to resonant frequency-based spectral separation. By using resonators with different resonant frequencies coupled to a shared waveguide, the system achieves spectral resolution in the frequency domain rather than requiring large spatial separation, enabling miniaturization without sacrificing resolution
2Measurement precision
If traditional spectral detection methods are used, then spectral analysis is achieved, but the optical throughput and signal-to-noise ratio are limited
Solution Approach 1:
Multiple spectral detection units share a common input waveguide and can process optical signals simultaneously. This merging of optical paths eliminates redundant components and maximizes optical throughput while maintaining spectral resolution through the resonant frequency differences of individual units
Solution Approach 2:
The patent replaces traditional mechanical or spatial optical filtering mechanisms with resonant frequency-based filtering using photonic resonators. This substitution reduces optical losses associated with physical filters while enabling precise spectral separation through resonant coupling, thereby improving signal-to-noise ratio
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 design increases the resolution and efficiency of spectral detection, allowing for higher optical throughput and signal-to-noise ratio while maintaining a compact form factor, enabling accurate analysis of incident light spectra and improved glucose measurement capabilities.
Implementation Method 1
The waveguide may be configured to deliver at least a part of the light traveling therethrough to the resonator based on evanescent coupling
Implementation Method 2
the resonator may be configured to absorb and resonate at least a part of the optical signal incident to the optical signal processor
Implementation Method 3
a waveguide configured to transmit the light incident to the light receiver
Data Source
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AI summary
A spectral detector includes a plurality of spectral detection units, each of the spectral detection units including an optical signal processor configured to deliver an optical signal incident to the spectral detection unit to an outside of the spectral detection unit, and a resonator configured to modulate a spectrum of an optical signal incident to the optical signal processor by interacting with the optical signal processor, at least some of the resonators of the plurality of spectral detection units having different lengths from each other, and a number of optical signal processors included in each respective spectral detection unit varying according to a length of the resonator included in the respective spectral detection unit.