Abstract: It is aimed to provide an optical component, a lens holding structure, and an optical communication module that can realize miniaturization while coping with optical axis deviation. An optical component includes a holder and a lens. The lens having a first central axis along a first direction. The holder having a second central axis along the first direction, having a principal surface perpendicular to the first direction, and on which the lens is mounted in such a manner that the first central axis is eccentric from the second central axis.

Abstract: The optical transmission module provided is designed to be simpler, smaller, and faster. It consists of a housing that holds one or more stacked substrates, partially exposed. Inside the housing, there is a light emitter that generates optical signals and an optical functional element that processes the transmission signal for driving the light emitter. Multiple terminals extend from the inside to the outside of the housing on the substrates. The terminals are divided into two groups: the first group connects to electrodes of a high-frequency circuit in the optical functional element, and the second group connects to electrodes of a low-frequency circuit. The length between the upper surfaces of the first group terminals and the high-frequency circuit electrodes is shorter than the length between the upper surfaces of the second group terminals and the low-frequency circuit electrodes, in the direction perpendicular to the substrates' major surface.

Abstract: An optical module includes a lens having a first optical axis; an optical substrate having a rectangular external shape including a first side and a second side forming a right angle to each other; an optical waveguide that is formed on the optical substrate and is optically coupled, in a cross section including the first side of the optical substrate, with a second optical axis forming a predetermined angle to the first optical axis; and a package that includes a storage region having a rectangular upper surface and stores the lens and the optical substrate, wherein the lens and the optical substrate are optically coupled, and both the second side and the first optical axis are substantially parallel to one side of the rectangular storage region.

Abstract: An object is to realize miniaturization of a light source module with a simple configuration. A cooling unit is provided to the housing to be contained in the housing. A light source is provided to the cooling unit and outputs light. A lens is provided to the cooling unit. The light output from the light source is incident on the lens. The lens deflects a travelling direction of the incident light toward the cooling unit and outputs the deflected light. An optical output unit is provided to the housing and outputs the light output from the lens to the outside of the housing.

Abstract: An optical amplifier modulates first light with a first modulation signal having a first frequency, and modulates second light with a second modulation signal having a second frequency. A splitter splits the first light and the second light. A light reception unit outputs an electric signal indicating intensity of light acquired by adding the received first light and the received second light. An intensity detection unit extracts a first component having the first frequency and a second component having the second frequency included in the electric signal, and detects amplitude of each of the first and second components. An amplification control unit monitors intensity of the first light based on amplitude of the first component and intensity of the second light based on amplitude of the second component, and controls amplification of each of the first light and the second light in the optical amplifier.

Abstract: Provided is a moving image playback method, a moving image playback device, and a computer readable storage medium which stores a moving image playback program which enable a plurality of moving images to be played back simultaneously on a single smart device, and enable the plurality of moving images to be moved and magnified/reduced within the smart device screen. For example, a moving image playback device of the present invention includes an operation part that performs an operation related to playback of a moving image; a control part that controls a request from the operation part; and a display part that displays the moving image according to the control of the control part.

Abstract: To shorten the length of an electric wiring between a capacitor and a PD, and to improve high frequency characteristics. An optical module of the present invention includes a light receiving element disposed at such a position that light from an optical transmission path is received on a light receiving surface in a state that the light receiving surface faces the optical transmission path; a spacer jointed to the optical transmission path and to the light receiving element in such a manner that a gap between the optical transmission path and the light receiving element is kept at a predetermined distance that light from the optical transmission path is allowed to enter the light receiving surface; and a capacitor electrically connected to the light receiving element, and disposed along with the light receiving element on a surface of the spacer on the same side as that joined to the light receiving element.

Abstract: Provided is a moving image playback method, a moving image playback device, and a computer readable storage medium which stores a moving image playback program which enable a plurality of moving images to be played back simultaneously on a single smart device, and enable the plurality of moving images to be moved and magnified/reduced within the smart device screen. For example, a moving image playback device of the present invention includes an operation part that performs an operation related to playback of a moving image; a control part that controls a request from the operation part; and a display part that displays the moving image according to the control of the control part.

Abstract: In order to alleviate constraints on the structural design of an optical module internally provided with a lens array, a lens holding structure of the present invention includes, with respect to a lens array including a plurality of lenses each having a convex surface, optical axes of the lenses being disposed in parallel to each other, the lenses being arranged in such a manner that an apex of the convex surface of each lens is included in a predetermined plane perpendicular to the optical axes of the lenses, one surface which is brought into close contact with the convex surfaces of the lenses; and another surface which fixes a side surface of the lens array.

Abstract: To shorten the length of an electric wiring between a capacitor and a PD, and to improve high frequency characteristics. An optical module of the present invention includes a light receiving element disposed at such a position that light from an optical transmission path is received on a light receiving surface in a state that the light receiving surface faces the optical transmission path; a spacer jointed to the optical transmission path and to the light receiving element in such a manner that a gap between the optical transmission path and the light receiving element is kept at a predetermined distance that light from the optical transmission path is allowed to enter the light receiving surface; and a capacitor electrically connected to the light receiving element, and disposed along with the light receiving element on a surface of the spacer on the same side as that joined to the light receiving element.

Abstract: A remote control (RC) has a touch pad and user touches on the pad are correlated to pad positions. The positions are sent to a remote display device and mapped to corresponding locations on the display of the display device as though the user were touching the display of the display device, not the touch pad of the RC.

Abstract: An optical transmission module is provided which has excellent long-term reliability, high manufacturing efficiency and a smaller optical output loss and which facilitate its downsizing, weight saving and high integration. The optical transmission module is provided with a first optical device 118 placed on an output side, a second optical device 122 placed on the first optical device 118 aligned with an optical axis of the first optical device 118, a package 111 including the first and second optical devices 118 and 122, and an optical fiber 115 configured to guide light emitted from the first optical device 118 to the outside of the package 111. The first optical device 118 and the second optical device 122 are in close contact with each other on the surface perpendicular to the optical axis.

Abstract: An optical transmission module is provided which has excellent long-term reliability, high manufacturing efficiency and a smaller optical output loss and which facilitate its downsizing, weight saving and high integration. The optical transmission module is provided with a first optical device 118 placed on an output side, a second optical device 122 placed on the first optical device 118 aligned with an optical axis of the first optical device 118, a package 111 including the first and second optical devices 118 and 122, and an optical fiber 115 configured to guide light emitted from the first optical device 118 to the outside of the package 111. The first optical device 118 and the second optical device 122 are in close contact with each other on the surface perpendicular to the optical axis.

Abstract: An optical communication module is fabricated to include a refraction plate made of an inorganic material whose refractive index varies little with temperature. The refraction plate is inserted in the optical path to perform optical axis compensation in a single lens system with long focal length.

Abstract: A thermal contraction stress and a residual contraction stress caused by a difference between the linear expansion coefficients of an optical element unit and a carrier are reduced as much as possible. An optical module includes an optical element unit including optical elements requiring a stress control, and a carrier which supports the optical element unit. As the carrier is made of a material having the same property as that of the substrate material of the optical element, the thermal contraction stress is reduced.

Abstract: Optical waveguide device has waveguide strip-shaped in the depth direction of the drawing and protruding from peripheral portion. A core (not illustrated) is disposed inside waveguide. Wall to be cut is integrated with waveguide to form one core layer. No unevenness occurs in a cutting line of wall indicated with broken line. Accordingly, high-precision cutting is enabled by cutting wall along the cutting line.

Abstract: The present invention aims to provide a miniaturized optical laser module that eliminates shift in contacting surfaces when contacting and fixing with adhesive two element carriers respectively holding an optical element and obtains a smooth adhesion fixation. A semiconductor laser module that has a configuration in which the element carriers respectively arranged with optical elements for laser oscillation are contacted and securely attached to each other to optically connect the optical elements and form a semiconductor laser, and externally outputs a laser light to an optical fiber arranged in advance via an optical system; where collar parts for setting contacting areas to an enlarged state when contacting the element carriers and being removably configured are integrally arranged on each element carrier on both side end faces at a contacting surface of each element carrier.

Abstract: Distortion of the temperature control element and the package by thermal deformation or mechanical deformation is prevented from being transmitted to the optical element as stress, and at the same time, constant temperature control of the optical element is realized. An optical element unit including an optical element that requires temperature control and an optical component that does not require temperature control, and a temperature control element for performing temperature adjustment of the optical element are arranged. The temperature control element performs temperature adjustment control of the optical element through a region mounted with the optical component of the optical element unit.

Abstract: Optical waveguide device has waveguide strip-shaped in the depth direction of the drawing and protruding from peripheral portion. A core (not illustrated) is disposed inside waveguide. Wall to be cut is integrated with waveguide to form one core layer. No unevenness occurs in a cutting line of wall indicated with broken line. Accordingly, high-precision cutting is enabled by cutting wall along the cutting line.

Abstract: A thermal contraction stress and a residual contraction stress caused by a difference between the linear expansion coefficients of an optical element unit and a carrier are reduced as much as possible. An optical module includes an optical element unit including optical elements requiring a stress control, and a carrier which supports the optical element unit. As the carrier is made of a material having the same property as that of the substrate material of the optical element, the thermal contraction stress is reduced.