13 results about "Optic layer" patented technology

An optical modulator includes an electro-optic layer including an electro-optic material, and a material layer arranged below the electro-optic layer and having a dielectric constant lower than a dielectric constant of the electro-optic layer. The optical modulator includes a core layer arranged below the material layer and having a refractive index higher than refractive indices of the electro-optic layer and the material layer, and an electrode that applies an electric signal to the electro-optic layer. The refractive index of the material layer is 0.85 times the refractive index of the electro-optic layer or higher.

An electro-optic device is described. The electro-optic device includes a substrate, an insulator on the substrate, an optical structure on the insulator and an electrode proximate to at least a portion of the optical structure. The substrate includes a trench region having a plurality of trenches therein. The trench region has an effective microwave index based on a substrate material and the plurality of trenches. The insulator is on the substrate. The optical structure is on the insulator. The optical structure has a thin film electro-optic layer including lithium. The electrode is proximate to a portion of the optical structure.

To provide a light source device excellent in light utilization efficiency.SOLUTION: The light source apparatus according to the present disclosure includes a first light source that outputs first light, a wavelength converter that converts the first light into second light, a first optical layer that transmits the first light and reflects the second light, a second light source that outputs third light, a light guide section that guides the second light and the third light, a parallelizing system that parallelizes the third light, and a second optical layer that transmits the third light and reflects the second light. The wavelength conversion element has a first surface and a second surface facing opposite to each other, and a third surface crossing the first surface and the second surface. The first light enters the third surface of the wavelength conversion element via the first optical layer. The second light travels through the light guide portion and is emitted from a region on the first surface side of the light guide portion. The third light is collimated by the collimating optical system, then enters the area located on the second surface side of the light guide section via the second optical layer, then proceeds through the light guide section in a direction parallel to the third surface, and is then emitted from the area located on the first surface side of the light guide section.SELECTED DRAWING: Figure 2

The teachings of the present disclosure enable a reduction of the refractive index of a material by incorporating an additive selected from air, vacuum, or an inert gas in the material to turn the material into a material foam that is suitable for use in optical systems. A material foam in accordance with the present disclosure is characterized by a porosity that reduces its refractive index from that of the same material as found in nature. The higher porosity also decreases the density of the material from that of the same material as found in nature. Material foams in accordance with the present disclosure are suitable for use in the low-refractive-index layers of a Bragg mirror.

The invention discloses an airborne integrated air-cooled optical fiber cladding power stripper, comprising a total reflection parabolic mirror and a laser total absorption surface layer; the total reflection parabolic mirror is arranged inside a fuselage; the laser total absorption surface layer is integrally formed with a fuselage skin; the application adopts an integrated design of a cladding power stripper and a fuselage skin, and combines the design principle of a parabolic mirror to directly scatter stray light onto an inner wall of a cavity through a quartz glass tube, thereby greatly reducing the surface heat flux density of the stray light radiated to the absorption surface of the inner wall, and concentrating all the generated waste heat onto the inner surface of the skin, and then transferring it to the outer surface and utilizing the natural cold source of the airborne environment - high-altitude low-temperature and high-speed airflow for real-time heat dissipation, so that a large amount of waste heat generated by the stray light stripped from the optical fiber cladding can be efficiently dissipated in real time to meet the temperature control requirements of the cladding power stripper, and the cladding power stripper has a simple structure and a greatly reduced overall weight, thereby meeting the requirements of lightweight design.

This document describes a slot waveguide modulator that utilizes both silicon photonics and electro-optic materials to achieve high bandwidth, high efficiency and low optical loss. The slot waveguide modulator has an electro-optic layer that is sandwiched between two mode stopper layers, where the mode stopper layers are formed in waveguide layers having a refractive index that is higher than the refractive index of the electro-optic layer.

The invention relates to a myopia intervention device and a treatment method thereof. The myopia intervention device comprises a host and a replaceable intelligent eye pad connected with the host, the intelligent eye pad is designed to be of a multi-layer structure, and sequentially comprises a hydrogel contact layer used for being attached to the skin and conducting electricity from the contact eye skin to the inside; the iontophoresis layer is used for generating pulse current to drive nutrient substances in blood to directionally permeate to sclera tissues; the optical layer is used for emitting monochromatic light with different wavelengths to act on cells of the retina; the micro magnetic field layer is used for generating a micro magnetic field with specific form and strength; the host is used for controlling the iontophoresis electrode layer, the optical layer and the micro-magnetic field layer to work cooperatively according to a preset time sequence and performing intervention treatment on eyes; according to the technical scheme, the myopia intervention treatment effect can be improved.

A wide field of view sensor or projector includes a transparent substrate having one or more apertures on one side and one or more chip stacks bonded to opposite sides. Each chip stack includes a flat optic layer (e.g., a metasurface), at least one spacer layer, optionally a filter layer, and an image sensor or light source. In one example, two apertures and two corresponding chip stacks are provided; the two chip stacks each include an image sensor but different metasurfaces and filters to capture different information from the scene. In an alternative embodiment, the two chip stacks include a light source and an image sensor to serve as a light projector and a light receiver, respectively. In other examples, two apertures and a single chip stack are provided, where the single chip stack includes two metasurfaces and / or two filters corresponding to the two apertures.

A lens device for treatment of an eye having a lens capsule with an internal chamber bound, in part, by a dynamic anterior optic and having a perimeter region. A deformable region having a three-dimensional bellows shape defining a volume projects radially outward from the perimeter region of the lens capsule and has an outer membrane segment configured to bend around a hinge relative to an inner membrane segment. A volume of an optical liquid is contained within the internal chamber and the volume of the deformable region. A force translation arm extends radially outward from the deformable region. Upon implantation of the lens device, the force translation arm directly contacts ciliary tissue to harness ciliary body movements that compresses and reduces the volume of the deformable region displacing optical liquid contained within the volume of the deformable region towards the internal chamber.

An optical ring resonator-based gyroscope includes a photonic integrated circuit (PIC) chip including a plurality of optical elements, the plurality of optical elements including a resonator ring; and a printed circuit board including a plurality of electrical components, the photonic integrated circuit being mounted on a surface of the printed circuit board, the photonic integrated circuit and the printed circuit board being electrically connected. A photonic integrated circuit (PIC) chip including a substrate; a dielectric layer; a first waveguide layer forming at least: a ring resonator and reflector portions; a second waveguide layer forming at least: vertical Bragg grating couplers disposed over one of the plurality of reflector portions, a chip waveguide; a magneto-optic layer encapsulated in the dielectric layer; and a metal layer forming a plurality of metal connection pads and a plurality of wire traces for electrically connecting the PIC chip to electronic components.

An integrated electro-optic modulator (1) comprising: - an electro-optic layer (11) comprising an electro-optic material being a uniaxial material with an extraordinary axis (110), comprising at least: o a first region (101) in which the extraordinary axis (110) is oriented along a first direction (111); o a second region (102) in which the extraordinary axis (110) is oriented along a second direction (112) opposite to the first direction (111); - a first electrode (21); - a second electrode (22); - a first optical waveguide (31); and - a second optical waveguide (32); and wherein the first optical waveguide (31) and the second optical waveguide (32) are provided between the first electrode (21) and the second electrode (22) along the extraordinary axis (110).

The teachings of the present disclosure enable a reduction of the refractive index of a material by incorporating an additive selected from air, vacuum, or an inert gas in the material to turn the material into a material foam that is suitable for use in optical systems. A material foam in accordance with the present disclosure is characterized by a porosity that reduces its refractive index from that of the same material as found in nature. The higher porosity also decreases the density of the material from that of the same material as found in nature. Material foams in accordance with the present disclosure are suitable for use in the low-refractive-index layers of a Bragg mirror.

Provided is a photocurable adhesive agent composition for creating an adhesive sheet suitable for use in a high-temperature environment. The photocurable adhesive agent composition that is provided comprises at least one selected from the group consisting of monomers and partial polymers of these monomers. The monomers include nitrogen atom-containing monomers. The adhesive agent composition contains a radical scavenger.