Abstract:
An alignment system for aligning a field space concentrator (FSC) joined to a fiber array unit (FAU) with a photonic integrated circuit (PIC) chip includes a first sensor on the PIC chip that responds electrically to interaction with a first alignment element on the FSC, a second sensor on the PIC chip that responds electrically to interaction with a second alignment element on the FSC, and a processor electrically connected to the first and second sensors for receiving and processing signals from the first and second sensors to determine an alignment of the FSC with the PIC chip.
Abstract:
An optical device may include at least two waveguides with different propagation constants. Each waveguide is associated with a grating antenna with a grating period selected to emit light at the same emission angle despite the different propagation constants. Each waveguide may be part of an optical path that includes phase shifters. Additionally, the waveguides may be formed in a waveguide layer that is separate from a perturbation layer in which the grating antennas as formed.
Abstract:
An optical device may include at least two waveguides with different propagation constants. Each waveguide is associated with a grating antenna with a grating period selected to emit light at the same emission angle despite the different propagation constants. Each waveguide may be part of an optical path that includes phase shifters. Additionally, the waveguides may be formed in a waveguide layer that is separate from a perturbation layer in which the grating antennas as formed.
Abstract:
L'invention se rapporte à un coupleur optique (10) dans une configuration verticale, propre à fonctionner pour une longueur d'onde et comprenant un premier guide d'ondes (12), et un deuxième guide d'ondes (14). Le deuxième guide d'ondes (14) présente une structuration (33) sous forme d'une succession de structures (36), les structures (36) s'étendant selon le long d'une direction transversale perpendiculaire à la direction longitudinale, étant parallèles entre elles et orthogonales à la direction générale du premier guide d'ondes (12), chaque structure (36) étant agencée à la fois dans le cœur (30) et la gaine (32) du deuxième guide d'ondes (14) et présentant des paramètres influant sur le couplage par ondes évanescentes entre le premier guide d'ondes (12) et le deuxième guide d'ondes (14), ces paramètres étant choisis de sorte que le couplage soit supérieur à 15%.
Abstract:
An optical coupling input/output interface including a multilayer ribbon comprising a plurality of layers with each layer having a plurality of waveguides. The I/O interface further includes a coupling interface section, wherein the plurality of layers are staggered to allow for evanescent coupling of the waveguides of each layer with a corresponding layer of waveguides in a photonic device.
Abstract translation:一种光耦合输入/输出接口,包括多层带,其包括多个层,每个层具有多个波导。 I / O接口还包括耦合接口部分,其中多个层交错以允许每个层的波导与光子器件中的相应的波导层的ev逝耦合。
Abstract:
A pipe section for coupling to one or more further pipe sections in order to form an elongate tubular, the pipe section comprising and optical fibre extending along the longitudinal direction of the pipe section, a waveguide disposed near one end of the pipe section and being in optical communication with the optical fibre, the waveguide being configured to guide light in a plane substantially perpendicular to the longitudinal axis of the pipe section.
Abstract:
Techniques for coupling light into graphene using a planar photonic crystal having a resonant cavity characterized by a mode volume and a quality factor and at least one graphene layer positioned in proximity to the planar photonic crystal to at least partially overlap with an evanescent field of the resonant cavity. At least one mode of the resonant cavity can coupled into the graphene layer via evanescent coupling. The optical properties of the graphene layer can be controlled, and characteristics of the graphene-cavity system can be detected. Coupling light into graphene can include electro-optic modulation of light, photodetection, saturable absorption, bistability, and autocorrelation.
Abstract:
Two-dimensional coupled resonator optical waveguide arrangements and systems, devices, and methods thereof. Networks of coupled resonator optical waveguides are arranged so as to exploit topological properties of these optical networks. Such arrangement affords topological protection against disorders or perturbations in the network that may hinder or block photon flow. As a result of a disorder, photons traversing along edge states of the array are rerouted based on the disorder or perturbation. Photon routing in the network is accordingly protected against disorder or defects.
Abstract:
An optical coupler that provides evanescent optical coupling includes an optical fiber and a waveguide. The optical fiber has a glass core, a glass inner cladding surrounding the glass core, and a polymeric outer cladding surrounding the glass inner cladding. The glass core and glass inner cladding define for the fiber a glass portion, which can be exposed at one end of the fiber by removing a portion of the polymeric outer cladding. The glass portion has a glass-portion surface. The waveguide has a waveguide core and a surface, and can be part of a photonic device. The glass portion of the fiber is interfaced with the waveguide to establish evanescent coupling between the fiber and the waveguide. Alignment features are used to facilitate aligning the fiber core to the waveguide core during the interfacing process to ensure suitable efficiency of the evanescent coupling.