Star-Type Electromagnetic Networks TRIZ Cases
- Burst-Mode Laser Driver With Energy Recycling for Fast Bias Switching
Stores bias-current energy during burst-off periods and reuses it for fast laser turn-on, cutting dummy-load power loss and preserving stability.
- PON Termination Interference Diagnosis Using Power and Timing Tests
Test signals at varied power and scheduled time slots reveal which PON termination devices cause interference and how to optimize them.
- Fiber Connectivity Detection Using Optical Loss Regression
A distance-based regression model predicts expected optical signal levels to flag fiber connectivity issues and reduce technician dispatches.
- Fibre Optic Network Fault Detection with Retroreflectors
Retroreflectors and coherent signals distinguish spine and feeder-fibre faults despite splitter insertion loss.
- Remote Optical Network Terminal Detection via Polarization Reflections
This case identifies connected ONTs from the OTB by varying signal polarization and analyzing reflected power without line disconnection.
- ONU-Timed Optical Power Control for Equalized PON Uplink Bursts
Arrival-time mapping adjusts amplification or attenuation, reducing OLT receiver power-range demands and overload risk.
- Optical Fiber Sensing Device for Residential Event Localization
An optical fiber sensing device localizes vibrations and temperature changes in residential areas by analyzing backscattered light characteristics.
- Optical Level Control Apparatus for GE-PON Surge Elimination
An optical level control apparatus detects input intensity and suppresses the head field of burst signals before transmission.
- Optical Splitter Reflective Film Remote Network Detection
A reflective film on one output port reflects test signals to a management device, resolving the trade-off between detection efficiency and accuracy.
- Multi-Input AWG for PON Power Meter
A multi-input arrayed waveguide grating separates optical signals into detection channels.
- Optical Network Unit Compliance Detection via Extinction Ratio Analysis
An optical line terminal analyzes extinction ratio and average transmit power from test transmissions to identify malfunctioning network units.
- PON Component Failure Prediction via Optical Profile Drift
A PON monitoring system generates optical profiles to predict component time-to-failure based on signal drift.
- Optical Fiber Distance Estimation via Chromatic Dispersion
A transport unit estimates optical fiber transmission distance using spectral null analysis to determine registration timing.