Coupling Light Guides TRIZ Cases
- Spiral Optical Delay Waveguide Layout for Compact Long Delay
Spiral multimode and single-mode waveguides create long optical delay in a smaller footprint while limiting evanescent coupling loss.
- Plasmonic Metasurface Beam Steering With Tunable Phase Control
Voltage-tuned plasmonic waveguides create subwavelength phase patterns for optical beam steering in LiDAR and free-space links.
- Vacuum Chamber Lens Assembly With Flexure Alignment Control
Spiral flexures and actuators align an in-vacuum objective lens in five degrees of freedom while reducing chamber size and reentrant window needs.
- Airtight Carbon Nanotube Saturable Absorber for Fiber Laser Durability
An airtight housing isolates the carbon nanotube saturable absorber from oxygen, extending fiber laser life while preserving pulse performance.
- Edge Coupler Fine Alignment by Heater-Induced Waveguide Bending
Adjacent heaters thermally bend an overhanging waveguide core to refine edge-coupler alignment and improve mode transformation and light coupling.
- Thin Silicon-III-V Waveguide Transition for Refractive Index Matching
Layered multi-section tapers bridge silicon and III-V index mismatch, enabling low-loss coupling on thin silicon photonic platforms.
- Glass-Board Optical Module for Hermetic Sealing and Thermal Stress Relief
Glass-board vias link heat conduction and temperature control to protect sealed electrical and optical elements from thermal stress.
- Fusion-Spliced Fiber Interface for Laser Feedback Light Blocking
A refractive-index mismatch at a fusion-spliced fiber interface totally reflects feedback light, protecting the resonant cavity and reducing waste.
- Optical Fiber Laser Coupling Layout for Stray Light Shielding
A shielding and reflecting layout blocks stray light from reaching optical parts and bonding materials in high-output optical fiber laser coupling.
- Fiber Optic Closure Tray Layout for Bend Radius Protection
A pivotable rear tray in a sealed fiber closure stores excess fiber at safe bend radius while preserving signal integrity and splice access.
- LiDAR Wavelength-Selectable Scanning for Wider Angle Coverage
Multiple tunable lasers and a light selection element expand LiDAR scanning angle coverage for richer surrounding detection in driving systems.
- Graphene Waveguide Photodetector Without Transfer-Related Defects
Direct CVD graphene growth on an insulated waveguide avoids transfer contamination and damage, improving photodetector consistency and mobility.
- Optical Coupler Support Layout for Thermal Axis Stability
A segmented support layout counteracts thermal expansion near electronics, helping an optical coupler maintain optical axis alignment.