Laser Details TRIZ Cases

Periodic refractive-index regions boost photonic-crystal coupling, helping smaller PCSELs cut power use without degrading emission characteristics.

Individually addressable VCSELs and a metasurface create nonrepetitive speckle codes that improve 3D matching precision and support thinner modules.

A weld-sealed SM-TO package replaces bulky TO laser packaging with recessed feedthroughs for surface mounting, better heat dissipation, and reliability.

Lateral wall portions guide emitted light sideways, shortening the optical path and freeing space for more flexible component mounting.

An inclined lower mirror and an upper mirror redirect the laser beam through a cover, reducing directional deviation for better beam combination.

A source-follower GaN FET reuses gate drive current through the laser diode to cut pre-driver power draw, ground bounce, and ringing.

An enhancement cavity stacks high-rate ultrafast pulses and switches them out at lower repetition for cost-effective three-photon microscopy.

A resonant driver and compensated sensing circuit generate short high-current laser pulses at lower voltage without high-speed comparators.

An inductive charging path replaces resistive recharge in a resonant laser pulse circuit, cutting dissipation while enabling fast, precise current pulses.

Emission timing feedback modulates the excitation drive signal to synchronize passive Q-switched laser pulses and avoid excess excitation.

A triangular trench layout and polygonal apertures suppress higher-order mode shifts, limiting beam splitting and divergence at high current.

A patterned metal layer or etched substrate lets a photodiode monitor VCSEL output power in compact packages without tall reflective structures.

Directed gas flow over the semiconductor laser facet limits dust adhesion in tight optical spacing, helping preserve stable optical output.

Forward voltage becomes a low-noise self-mixing signal through aperture tuning and a tunnel junction, removing the need for a monitor diode.

Staggered PWM duty cycles let multiple laser beams project lines and dots while limiting overlap intensity and preserving visibility.

A radiation-transmissive body shifts optical path lengths so multiple emission regions achieve distinct virtual focal points with simpler, more precise manufacturing.

A compact micro-ring resonator with split DBRs tunes lasing wavelength while cutting phase adjustment and power use for single-mode operation.

A resonant tank and per-diode switches generate narrow high-current LIDAR pulses while limiting parasitic inductance and false diode triggering.

A bottom-side metal layer with emission openings reduces voltage gradients in bottom-emitting VCSEL arrays and improves optical power uniformity.

Bleed current control and process-based voltage thresholds keep laser diode drivers forward biased while limiting silicon breakdown risk.

A low-NA fiber and collimating lens module cut beam divergence and BPP, enabling high-brightness diode laser output for welding and 3D printing.

Beam characteristics are adjusted inside the fiber by perturbation and preserved by refractive-index confinement, avoiding complex free-space optics.

A dual-profile fiber with confinement regions adjusts beam diameter, divergence, and power density without free-space optics.

Time-gated laser sensing blocks side-light saturation, enabling accurate physiological measurements from up to 7 mm in compact wearables.

Independently driven wavelength segments cut heat and power use while improving spectral resolution in compact hyperspectral imaging.

A conductive layer inside the insulating layer drains accumulated charge, enabling faster switching and more stable color balance.

Integrated branching and monitoring multiplexers on a PLC chip enable accurate RGB wavelength monitoring while reducing light source size.

By combining graphene with quantum dot or quantum well absorbers, this mirror improves thermal stability and enables stable high-power ultrafast pulses.

SOA bias modulation suppresses light during wavelength transitions, enabling nanosecond pulses with fast switching and stable wavelength control for lidar.

Phase-compensated metasurface simulation and a transparent intermediary layer cut interface reflection and energy loss in light-emitting assemblies.

Segmented tunable Bragg gratings and feedback phase correction suppress temporal pedestals in CPA lasers while preserving ultrashort high-energy pulses.

Adaptive feed-forward plus feedback helps an optical resonator track periodic non-harmonic modulation with less delay and distortion.

A photonic crystal layer and selective doping steer current density to boost surface-emitted light intensity and directionality.

Optical negative feedback at the opposite waveguide end narrows laser linewidth while reducing power loss and preserving frequency tuning.

A threaded height adjustment barrel aligns the laser diode and lens for focal tuning, easier assembly, heat dissipation, and star-like lighting.

A GaAsP cap enables wafer removal, oxide-free desorption, and separate VCSEL regrowth steps for cleaner DBR growth and faster throughput.

Split and time-delayed laser sub-beams ionize air over a larger display region at lower output power, reducing optical component stress.

Temperature-corrected photodiode feedback stabilizes endoscope illumination brightness and chromaticity despite light source and sensor heating.

Angled bottom-emitting VCSEL output and a grating coupler improve PIC waveguide coupling, cut power loss, and reduce back-reflection.

A composite cavity with narrow and wide bandgap semiconductors improves heat removal, optical power efficiency, and high-power reliability.

A convex substrate and conductivity-type step structure replace oxidation-defined confinement to stabilize current injection and beam output.

Electronic phase shifting in an optical feedback cavity tunes multi-wavelength laser output with high selectivity while avoiding bulky moving parts.

A dual-semiconductor cavity uses vertical or evanescent coupling to cut optical loss and improve heat removal at high laser power.

Sub-lenses between laser elements and main lenses correct mounting errors and beam divergence to keep collimated output within target quality range.

Duty-cycled inductive and capacitive energy recycling cuts laser pulse power loss and heat in time-of-flight sensor drivers.

Opposite bond-wire routing and recessed IC mounting cut crosstalk in dense photoemitter arrays while preserving signal integrity above 50 GHz.

Isolated cathodes with a common n-type anode give VCSEL sub-arrays flexible drive circuits while reducing fabrication complexity and optical loss.

Etched openings in a photosensitive encapsulant enable fine-pitch, high-aspect-ratio LED vias while reducing collapse risk during formation.

Hybrid bonding stacks VCSEL emitters with driver circuits to cut parasitic impedance, shrink module area, and improve emitter switching in LiDAR.

Controlled spot-laser scanning and beam angles improve poly-silicon crystal alignment and uniformity during amorphous silicon crystallization.