Optical Wave Guidance TRIZ Cases
- Wafer-to-Wafer Bonding for Laser Integration in Silicon Photonics
A wafer-to-wafer bonding process vertically aligns optical waveguides across separate substrates to integrate laser elements into photonic circuits.
- Laser Diode Nano Patterns for Single-Mode Wavelength Control
Post-growth nano patterns simplify fabrication complexity while enabling precise wavelength control through cleavage mirror angle adjustment.
- Asymmetric Optical Confinement Layers in AlGaN Lasers
Upper and lower optical confinement layers with asymmetric energy gaps confine light within the active region of a semiconductor device.
- Laterally Injected LED With Slanted Facet
A laterally injected light-emitting diode uses a p-type superlattice layer to inject holes into an active region.
- Semiconductor Laser Diode with Insulated Groove for Low Drive Current
A semiconductor laser diode structure uses an insulated groove to capture stray electroluminescent light and reduce drive current.
- Laser Diode Resin Ceiling Reduces Parasitic Capacitance
A laser diode uses a resin ceiling layer to separate the metal contact from the semiconductor ridge.
- Terahertz Laser Surface Emission via Asymmetric Photonic Crystal
A semiconductor laser device emits terahertz waves perpendicularly through a photonic crystal lattice with asymmetric pits.
- Waveguide Structure for Mid-IR Multiwavelength DFB Laser
A waveguide structure guides light between active and passive sections in a mid-infrared laser device.
- External Cavity Laser Thermal Stabilization via Decoupled Intermediate Plate
A decoupled intermediate plate thermally couples gain medium and end mirror to a thermoelectric cooler while mechanically isolating the optical bench.
- Semiconductor Strip Laser Integrated Heat Spreader
Direct integration of a high-conductivity heat spreader eliminates solder layers, reducing thermal resistance and boosting optical power output.
- Photonic Device Current Confinement Layer Doping
Patterned current confinement layer reduces dark current and sidewall leakage to improve signal-to-noise ratio.
- Semiconductor Laser Beam Expanding Structure for High-Speed Output
A semiconductor laser integrates a beam expanding structure at the output end surface to enhance optical performance.
- Semiconductor Laser Element Bulk Defect Suppression
Phosphorus doping stabilizes arsenic interstitials to suppress bulk dislocation loops and maintain characteristic stability under high output power.
- Defect-Free 3D Quantum Dots via Sacrificial Layer Replacement
Sacrificial material replacement prevents crystalline defects during quantum dot growth, maintaining high structural integrity.
- Group III-Nitride LED Current Spreading Layer with SiC
A current spreading layer integrates a silicon carbide film within group III-nitride light emitting devices to enhance electrical conductivity.
- Quantum Cascade Laser Subband Structure for High-Temperature Operation
An injection level in the subband structure relaxes electrons to the emission upper state, enabling high-output operation at elevated temperatures.
- SOI Optical Waveguide Leakage Prevention for CMOS Integration
Segmented SiO2 layers and extraction resolve the thickness contradiction between CMOS compatibility and low propagation loss.
- Semiconductor Optical Element Segmented Current Injection
Segmented current injection in the upper mesa structure resolves the trade-off between optical gain and relaxation oscillation frequency.
- Wavelength-Selectable Laser Diode for Compact WDM Systems
Integrating gain, tuning, and phase regions into one module reduces equipment size and energy consumption while maintaining precise wavelength selection.
- Light-emitting device with asymmetric phase modulation layer
A light-emitting device uses a phase modulation layer with modified refractive index regions to control optical output.
- Semiconductor Laser Wavelength Diversification for Interference Suppression
A semiconductor laser device varies light-emitting layer parameters to emit red beams with distinct peak wavelengths.
- Semiconductor Light Emitting Element Ridge Crack Prevention
A semiconductor light emitting element uses a ridge structure with recesses and a light guide layer to enhance optical confinement.
- In1-xAlxP Clad Layer Strain Control for Optical Semiconductor Doping
Incorporates In1-xAlxP clad layers with controlled strain to stabilize p-type dopant concentration in optical semiconductor devices.
- GaN Optical Devices Using Laser Scribing Metallization
Laser scribing creates scribe regions on gallium nitride backside regions, enabling precise device separation while lowering contact resistance.
- Semiconductor Optical Apparatus Mode Transformation via MQW Segmentation
Segmented multiple quantum well layers with a spacer reduce optical mode size, improving coupling efficiency and device yield.
- Nitride Semiconductor Electron Barrier Layer Segmentation
A p-doped electron barrier layer sequence uses graded aluminum content to confine charge carriers within the active region of a nitride semiconductor device.
- Surface Emitting Semiconductor Laser Cavity Extending Region
A surface emitting semiconductor laser incorporates an optical loss causing layer within a cavity extending region to suppress unwanted longitudinal modes.
- Semiconductor Laser Blocking Layer Aluminum Gradient
A semiconductor laser blocking layer with stepped aluminum gradation constricts current flow and enhances hole injection efficiency.
- Cleaved Facet GaN Laser Diodes on Semipolar Substrates
Cleaving the semipolar substrate reduces scattering losses and threshold current density compared to dry-etched facets.
- Semiconductor Laser Device Epi Intermediate Layer Cleaving
An epi intermediate layer facilitates substrate division under reduced load.
- DBR Master Laser Injection-Locked Microring for 200 GHz Bandwidth
A DBR master laser injection-locks a whistle-geometry microring to modulate photon lifetime and boost resonance frequency.
- Distributed Feedback Laser Diode Phase-Shift Region Design
A distributed feedback laser diode incorporates a phase-shift region with varying effective refractive indices to enhance single mode generation.
- Light Emitting Element Wavelength Control via Absorbing Layers
Segmented resonator with parallel absorbing layers suppresses unwanted longitudinal modes for accurate wavelength control.
- Monolithic AlInGaN Laser Diode Arrangement with Independent Active Zone Control
AlInGaN laser stacks grown monolithically on a semiconductor substrate enable separate actuation of individual active zones for dynamic light emission.