Optical Waveguide Light Guide TRIZ Cases

Carrier injection changes the refractive index in a multi-mode interferometer waveguide, reducing excess optical loss from traditional couplers.

A silicon modulator employs phase shifters with varying capacitance per unit length to optimize electro-optic performance.

Integrating a lens directly on the semiconductor substrate with the laser source reduces optical loss and device complexity.

An asymmetric tapered optical waveguide rotates polarization mode angles to convert TE and TM modes.

A planar waveguide device uses a heater and heat sink on opposing Si substrate ends to create a controlled temperature gradient across parallel optical waveguides.

Tapered waveguide sections enable adiabatic light transfer across chip boundaries, reducing insertion loss from reticle stitching misalignments.

Dummy regions leverage microloading effects to tune electro-absorption medium composition, resolving precision difficulties in multi-wavelength optical devices.

Adjusting multimode interference waveguide lengths by input wavelength reduces optical loss in Mach-Zehnder modulators.

An undercut in the silicon substrate increases separation distance between waveguide and substrate to reduce electromagnetic energy leakage.

A bridging waveguide structure emulates tapered fiber coupling to interface with optical microresonators.

An air gap between adjacent waveguides prevents crosstalk, allowing closer spacing and a ±45° scanning range.

Nanostructured optical antennas transmit light between stacked integrated circuit layers, eliminating complex via holes and reducing manufacturing costs.

Dual silicon oxide cladding layers with varying fixed charge densities suppress temporal resonance wavelength drift caused by humidity absorption in the core.

A graphene plasmonic phase modulator controls surface plasmon polariton propagation speed via voltage signals.

A dielectric layer between micro-electromechanical electrodes prevents short circuits and stabilizes switching function in integrated optical coupling switches.

A compact integrated photonic device unifies polarization rotation and splitting through a continuous symmetry-breaking layer.

A plasmonic modulator uses an insulating nitride layer between metal electrodes to enable fast optical modulation with low power consumption.

Comb-shaped transmission lines slow electrical signals to match optical velocities, resolving velocity mismatch and boosting bandwidth.

Eccentric triangle protrusions on a light guide plate concentrate and direct light paths to enhance brightness.

Segmented waveguides remove radiated light from the main output path, enabling accurate bias control in thin substrate devices.

A second core bending portion redirects light propagation from a substrate plane to a perpendicular angle using total internal reflection.

Guided light attenuators in slab waveguides prevent erroneous measurements during fabrication, improving yield.

Segmented grating sections compensate second and third order dispersion in silicon-on-insulator waveguides, enabling tailored pulse shaping.

Matches poling period to local thickness variations in lithium niobate waveguides, resolving phase mismatch and boosting second-harmonic conversion efficiency.