Fujikura Limited

Nistica, Inc.

Japan Display Inc.

Hitachi, Ltd.

Molex Corporation

Takaaki Ishikawa

Kunihiko Fujiwara

Jefferson L Wagener

Yuwa Tanaka

Takaaki Kamimura

Susumu Nakaya

Noriyuki Hirata

Carl Edmund Soccolich

Kazuhiro Takizawa

Akito Nishimura

Yukio Hayashi

Shigeo Takahashi

Kazuhiko Mizuno

Hiroshi Furukawa

Michio Tsukii

Takumi Karasawa

Tomoyuki Shinoda

Masayuki Hirose

Takashi Atobe

Seungbum Woo

An optical fiber pitch conversion jig for converting a pitch among optical fibers by inserting the optical fibers from a first end of the optical fiber pitch conversion jig and making the optical fibers protrude from a second end of the optical fiber pitch conversion jig, the optical fiber pitch conversion jig includes: a groove portion including grooves extending from the first end to the second end, a first linear part on a side closer to the first end and in which a pitch among the grooves is a first pitch, and a pitch change part that is continuous with the first linear part and in which the pitch widens to a second pitch larger than the first pitch. In the pitch change part, at least one of the grooves is curved.

Optical fiber pitch conversion jig, optical connector, pitch conversion cord, optical conversion box, and pitch conversion method for optical fibers

An optical device includes an optical port array, an optical arrangement, a dispersion element, a focusing element and a programmable optical phase modulator. The optical port array has at least one optical input port for receiving an optical beam and a plurality of optical output ports. The optical arrangement allows optical coupling between the input port and each of the output ports and prevents optical coupling between any one of the plurality of optical output ports and any other of the plurality of optical output ports. The dispersion element receives the optical beam from the input port after traversing the optical arrangement and spatially separates the optical beam into a plurality of wavelength components. The focusing element focuses the plurality of wavelength components. The programmable optical phase modulator receives the focused plurality of wavelength components and steers them to a selected one of the optical outputs.

Optical arrangement for managing diversity and isolation between ports in a wavelength selective switch

Disclosed is a manufacturing apparatus of a light-emitting element including: a main transporting route extending in a first direction, the main transporting route comprising first and second transfer devices connected through a first transporting chamber; a sub-transporting route extending in a second direction intersecting the first direction, the sub-transporting route comprising a second transporting chamber connected to the first or second transfer device and a delivery chamber connected to the second transfer chamber; and a plurality of first treatment chambers connected to the delivery chamber. The main transporting route is configured to transfer a substrate to be treated in a horizontal state, and one of the plurality of treatment chambers is configured to hold the substrate in a vertical state during treatment.

Manufacturing method of a light emitting device

Disclosed is a manufacturing apparatus of a light-emitting element. The manufacturing apparatus includes: a main transporting route including a first transfer device and a second transfer device connected to each other through a first transporting chamber; a sub-transporting route extending in a direction intersecting the main transporting route, the sub-transporting route including: a second transporting chamber connected to the first transfer device or the second transfer device; and a delivery chamber connected to the second transporting chamber; and a plurality of treatment chambers connected to the delivery chamber. A region to which the first transfer device, the second transfer device, the first transporting chamber, and the second transporting chamber are connected is under a continuous vacuum environment.

Manufacturing apparatus of light-emitting element

Manufacturing device and manufacturing method of light-emitting element

An optical device includes at least three optical ports. An optical arrangement arranges an optical beam received from any of the optical ports into a first polarization state. A dispersion element spatially separates the optical beam into a plurality of wavelength components. An optical power element converges each wavelength component in at least one direction. A programmable optical phase modulator steers the wavelength components through the optical arrangement, the dispersion element and the focusing element to a selected optical output. The programmable optical phase modulator includes an active area that performs the steering and a non-active area surrounding the active area. A polarizing arrangement located in an optical path between at least one of the optical ports and at least a portion of the non-active area of the programmable optical phase modulator is configured to arrange optical energy into a second polarization state orthogonal to the first polarization state.

Optical arrangement for suppressing outerband crosstalk in a wavelength selective switch

An optical device in which crosstalk due to scattering is reduced includes an optical port array having at least one optical input for receiving an optical beam and at least one optical output. The input and outputs extend along a common axis. A dispersion element receives the optical beam from the optical input and spatially separates the optical beam into a plurality of wavelength components. A focusing element focuses the plurality of wavelength components and a programmable optical phase modulator receives the focused plurality of wavelength components. The modulator is configured to steer the wavelength components to a selected one of the optical outputs. The programmable optical phase modulator is oriented with respect to the optical port array so that an axis along which the optical beam is steered is non-coincident with the common axis along which the input and outputs extend.

Wavelength selective switch employing a LCoS device and having reduced crosstalk

An optical connector includes a connector housing; an optical ferrule that is housed in the connector housing; a coil spring that is housed in the connector housing and impresses the optical ferrule in a forward direction; and a spring pressing portion that is attached to an rear end of the connector housing, has an optical fiber inserting through-hole and a spring reception portion, and receives a reaction force of the coil spring. The spring pressing portion is divided into two half bodies. Since the spring pressing portion is divided into two parts, at the time of assembly of the optical connector, the optical ferrule is attached to the optical fibers and is terminated, and then the optical fibers can be covered with the spring pressing portion. At the time of the terminating operation, since there is no spring pressing portion that causes interference in the operation, it is easy to perform the terminating operation of the optical ferrule.

Optical connector

Provided is an optical processing device including: a beam emission portion which comprises a plurality of optical fibers; a plurality of collimating lenses to which a beam emitted from the optical fibers are incident; a dispersion element which disperses the beam emitted from one optical fiber among the plurality of optical fibers; and an optical path conversion optical system which converts an optical path of the beam passing through the dispersion element and allows the beam to be incident to another optical fiber among the plurality of optical fibers, wherein the plurality of collimating lenses is installed in series in the optical path direction of the beam emitted from the optical fiber, and wherein a distance between at least two collimating lenses are adjustable in the optical path direction.

Optical processing device

A method and apparatus is provided for processing an optical beam. The method includes spatially dispersing an optical beam received from an optical port into a plurality of wavelength components. The wavelength components are focused and at least one of the components is selectively directed to one of the optical ports by reflecting the focused wavelength component at least twice from a DMD before being directed to a selected one of the optical ports. A resolution of the focused wavelength component is optimized when it is reflected from the DMD a first or second time at the expense of the other time when it is reflected.

Provided is an optical processing device including: a beam emission portion which includes a plurality of optical fibers; a dispersion element which disperses a beam emitted from one optical fiber of the plurality of optical fibers; a condenser lens which concentrates the beam passing through the dispersion element; and an optical path conversion optical system which converts an optical path of the beam passing through the condenser lens so that the beam is incident to one of the other optical fibers of the plurality of optical fibers. An optical axis of the condenser lens is inclined with respect to an optical axis direction from the beam emission portion to the optical path conversion optical system. The inclination angle is set so that a maximum difference in focal depth of a plurality of beams having different wavelengths obtained by the dispersion element becomes smaller.

In an optical connector with optical fibers in which silica glass optical fibers with resin coating layers remaining attached are connected in optical fiber openings of a ferrule made from resin, at least a part of the resin coating layer of the optical fiber is glued to an inner face of the optical fiber opening, an outer diameter of the resin coating layer of the optical fiber is less than or equal to 125 &#x3bc;m, and the Young's modulus of the resin coating layer is less than the Young's modulus of the ferrule, and the Young's modulus of the resin coating layer is 1500 to 10000 MPa.

Optical connector with optical fiber

An optical connector assembly includes a substrate including a connection surface and an optical element, an optical connector on a distal end of an optical fiber, and a positioning mechanism, that positions the optical fiber with respect to the optical element to provide an optical connection therebetween, the positioning mechanism including a positioning projection on one of the optical connector and the substrate and a corresponding positioning hole on the other of the optical connector and the substrate.

Optical connector assembly, connector holder, and optical connector

A join end face of an optical connector is easily and reliably cleaned when the optical connector has been inserted into a connector housing, by using an optical connector cleaning unit comprising a cleaning member which wipes clean a join end face of an optical connector inside a connector housing by relative motion against the join end face, a drive mechanism which drives the cleaning member, and a connection section which enables a drive auxiliary mechanism for applying a moving force to the drive mechanism to be connected, and an optical connector cleaning tool in which a drive auxiliary unit comprising the drive auxiliary mechanism has been connected to the connection section of the optical connector cleaning unit.

Growing community of inventors

Sakura, Japan

Takaaki Ishikawa