Half-wave plates in arm waveguides compensate for birefringence, eliminating polarization dependence across the wavelength band.
Photonic integrated circuit with geometrically arranged active and passive regions reduces fabrication complexity while increasing chip yield.
Hollow-core waveguides reduce resistance losses and accelerate signal propagation by replacing dielectric materials with air-filled paths.
A photonic resonant motor converts optical power into mechanical torque using coupled optical resonators and radiation pressure.
A waveguide crossing structure uses a vertically displaced intermediary layer to transfer optical signals between intersecting guides.
Tuned reflector recirculates optical signals through waveguide photodetectors to boost responsivity.
A resin buffer layer between the modulation electrode and substrate reduces mechanical stress on the optical modulator.
Loading microstructured fiber core and cladding with hydrogen extends operational life under high peak power conditions.
A dielectric trench houses a waveguide core to protect electronic components during fabrication.
Nested Mach-Zehnder interferometer with photonic resonators reduces device footprint and optical losses in LiDAR systems.
A pseudo-random phased array uses asymmetric emitter spacing to suppress grating lobes and enable fast beam steering.
Roughening the upper surface of a slab waveguide scatters high-order modes, resolving manufacturing precision challenges in compact optical modulators.
Vertical stacking of overlapping substrates enables non-intersecting optical paths, eliminating alignment complexity and signal interference in dense systems.
A rib-type optical waveguide uses tapered transitions to widen the core at intersection points.
Direct laser writing produces large-mode-area waveguides with low propagation loss, enabling high-power visible sources.
A multilayer film integrates a perovskite oxide layer with zirconia on silicon to boost modulation efficiency in photonic circuits.
Merges optical waveguides and MOS transistors on one bulk silicon chip via a half-boat-shaped layer, reducing surface area and simplifying fabrication.
A polymer layer compensates for silicon thermo-optic effects, reducing wavelength drift to 0.5 pm/K.
Longitudinal structural elements diffract core light into cladding modes, creating spectral peaks or dips without requiring multiple materials.
Lateral germanium overgrowth eliminates threading dislocations and optical absorption losses during hybrid III-V laser co-integration.
Increasing the c-axis length of epitaxial lithium niobate films to 13.88 Å suppresses DC drift in electro-optical waveguides.
Integrating photonic and electronic dies via vertical stacking reduces connection distance, minimizing signal transmission energy loss.
Asymmetric RF line crossing geometry compensates for lithographic mask misalignment, maintaining balanced modulation strength despite fabrication errors.
Ion implantation shifts silicon ring resonator resonance while annealing restores the Q-factor, reducing thermal tuning complexity.
Merging integrated circuits and optical components on a single chip eliminates separate assembly steps, reducing fabrication complexity and cost.
A Bragg reflector structure uses vertically stacked waveguide cores to enable reliable dielectric filling between separated segments.
Asymmetric waveguide arms adjust optical coupling ratios through varied longitudinal offsets.
Evanescent coupling in stitched reticle fields links waveguides through overlapping fields, eliminating fiber attachment complexity and reducing signal loss.
A gain medium amplifies surface states through evanescent coupling, overcoming energy transfer limitations at media boundaries.
Segments waveguide paths to combine polysilicon routing flexibility with low-loss transmission, reducing signal attenuation.
A Mach-Zehnder optical modulator uses an extended second polarity region to block dopant diffusion between adjacent waveguides.
Segmenting the waveguide and taper into distinct materials reduces optical loss while simplifying fabrication complexity.
A MEMS optical switch uses interdigitated electrodes to steer light beams via voltage-controlled antenna positioning.
Depressed cladding refractive index profiles enlarge effective area while suppressing bending loss to extend high-power light propagation distance.
A surface waveguide spotsize converter uses a non-linear thickness profile to achieve adiabatic mode transition between different index contrast regions.
Replacing slow thermal tuning with stationary acoustic waves, this device achieves instantaneous refractive index changes for dynamic signal distribution.
A heterogeneously integrated sensor uses an intermediate waveguide to bridge dissimilar materials for optical signal transfer.
Wafer bonding transfers a mono-crystalline silicon waveguide layer onto a high refractive index substrate to integrate active photonic devices.
A semiconductor optical waveguide uses symmetric dummy patterns to control core width during photolithography and etching.
Cascading Mach-Zehnder interferometers multiply pulse repetition rates up to 30 GHz, overcoming fiber attenuation and phase noise limits.
A photonic polarizer uses evanescent coupling between spiral and straight waveguides to filter light signals.
Tapered input rib waveguides broaden channel bandwidth in optical multiplexers while maintaining high peak transmission efficiency.
Shallow holes in a silicon layer suppress light loss while enabling precise splitting ratio control.
Curving the second arm reduces excess bending losses while maintaining compact device size for efficient signal routing.
High conductivity materials mitigate thermal heating in silicon waveguides, preventing physical damage and enabling higher optical input power levels.
A tapered waveguide structure transitions optical power through varying core widths to achieve stable attenuation across a wide wavelength range.
Integrating inductors within multilayer wiring layers reduces device area while maintaining performance.
A thin plate optical modulator incorporates a stray light removing member to improve the signal-to-noise ratio of output light.