Distortion/Dispersion Elimination TRIZ Cases
- Dielectric Waveguide Interface for Stable PMF Polarization
Defined polarization injection and splitting at the PMF interface reduces S-parameter variation and signal reflections in high-frequency links.
- Semiconductor Optical Isolator Using Saturable Gain for Wideband PICs
An attenuator-amplifier isolator uses intensity-dependent gain to deliver CMOS-compatible optical isolation across a wider wavelength band.
- Optical Signal Pre-Equalization for Accurate Compensation Coefficients
Amplitude-distribution scaling helps optical transmitters estimate compensation coefficients despite wire attenuation, improving SNR and waveform consistency.
- Optical Signal Pre-Equalization for Nonlinearity Coefficient Estimation
Amplitude-distribution scaling helps estimate pre-equalization filter coefficients and compensate optical link nonlinearity.
- Optical Filter Fiber Padding for Upstream-Downstream Latency Balance
Fiber padding inside optical filter modules offsets upstream-downstream path delay imbalance to keep 5G channel latency symmetry within limits.
- Wavelength-Independent PON Extender for Long-Reach Split Networks
Raman and optical amplification with dispersion compensation extends split PON reach to 100 km without remote OLT deployment.
- Frequency-Domain Equalization Circuit for Wraparound Distortion Control
Lower-frequency constraint updates suppress block wraparound distortion in adaptive frequency-domain equalization without added processing load.
- Optical Module Nonlinear Compensation for Lower Bit Error Rates
Modulator-specific compensation data stored in the optical module lets the communication apparatus cut nonlinear distortion and bit error rates.
- OPA Photonic Circuit for Multimode Fiber Mode-Mixing Correction
Control wavelengths let an OPA photonic circuit map cross-coupling and correct multimode fiber mode mixing for higher data rates and spatial resolution.
- CVBG Dispersion Compensator Using Polarization Conversion
A PBS and quarter-wave-plate layout lets a CVBG compensate chromatic dispersion by delaying spectral components and recompressing broadened pulses.
- CVBG Dispersion Compensator With Polarization Routing for Pulse Compression
A PBS and quarter-wave-plate path lets a CVBG compensate chromatic dispersion in transmission, compressing broadened optical pulses.
- Frequency-Domain MIMO-FIR Filtering With Reduced Block Overlap
By keeping only the needed inverse-FFT symbols, this case cuts overlap redundancy and calculation load in long-distance optical signal processing.
- Optical Module Compensation Data for Modulator Nonlinearity
Modulator-specific compensation data stored in the optical module lets the communication apparatus cut nonlinear distortion and bit error rates.
- Optical Signal De-Noising Using Unsupervised Distortion Learning
Unsupervised distortion learning separates stochastic and deterministic effects to improve optical signal compensation with less training data.
- Optical Repeater Control for Phase Conjugation and Dispersion Compensation
Wavelength-aware repeater control combines phase conjugation and dispersion compensation to suppress nonlinear distortion in multi-span optical links.
- Optical Network Parameter Estimation Using Virtual Signal Waveforms
Intensity-only detection and virtual signal waveform modeling estimate optical network parameters with lower power and hardware cost.
- Optical Signal Processing for Multi-Core Fiber Crosstalk Removal
Equalization and optical phase recovery remove inter-core crosstalk in multi-core fiber links, supporting optical signals above 100 Gbps.