Distortion/Dispersion Elimination TRIZ Cases
- Disturbance Tolerant Optical Device Using Sensor Segmentation
Segmented photo-sensors cancel electromagnetic interference through differential processing, reducing bit errors in high-noise environments.
- Chromatic Dispersion Compensation via Band Division Timing Adjustment
Band division timing adjustment aligns frequency signals to reduce FFT overlap, lowering power consumption and unit size.
- Wideband Optical Signal Beat Noise Suppression in Correlation OTDR
Correlation OTDR spreads beat noise power outside the receiver passband using wideband Fabry-Perot lasers, improving measured return quality.
- Active Optical Beat Interference Remover for RFoG Networks
An active splitter converts optical signals to electrical form for interference-free combining before retransmission.
- 4D-8QAM Modulation Format for Nonlinear Tolerance
Concentric amplitude shells in a 4D constellation reduce nonlinear interference while maintaining low bit error rates at high spectral efficiency.
- Chromatic Dispersion Monitoring via Cross-Correlation Time Delay
A chromatic dispersion monitoring method uses coherent mixing and cross-correlation to extract time delays from analog electrical signals.
- Optical Transmitter Pre-Emphasis Control via In-Band Power Error Feedback
An optical transmitter module uses an electrical detector to send power error signals to a controller for dynamic pre-emphasis adjustment.
- Ghost Channel Management for Polarization Hole Burning Mitigation
Ghost channels absorb excess polarization effects to balance amplifier saturation levels across optical nodes.