Abstract:
Provided are an edge gateway system for providing device use and resource sharing suggestions and an operating method thereof. The edge gateway system includes at least one edge gateway and an edge gateway management server connected to the at least one edge gateway. The edge gateway is connected to one or more edge devices and transmits an operation status of the edge gateway and an operation status of the edge devices to the edge gateway management server, the edge gateway management server generates suggestion information to be delivered to a user of the edge gateway based on the operation status of the edge gateway and the operation status of the edge devices, and the suggestion information includes any one of an edge device use suggestion, an edge device sharing suggestion, and an edge gateway service resource sharing suggestion.
Abstract:
A method of packaging a multi-channel optical receiver module and a package of the same are provided. The method includes installing a first lens on a sub-mount; aligning an optical block including a plurality of filters on the sub-mount; installing the aligned optical block on the sub-mount; aligning a second lens on the sub-mount; installing the aligned second lens on the sub-mount; and coupling the sub-mount to a TO-stem. The aligning of the optical block transmits light incident through the first lens to the plurality of filters, transmits light beams transmitted through the plurality of filters to an object lens, monitors positions of and intervals between the light beams transmitted through an infrared (IR) camera and aligns the optical block so that the intervals between the light beams transmitted through the plurality of filters are identical.
Abstract:
A wireless optical communication apparatus for performing bi-directional optical transmission in a free space includes a first optical system configured to transmit data through a downlink scheme and a second optical system configured to receive the data from the first optical system and transmit a control signal to the first optical system through an uplink scheme, wherein each of the first optical system and the second optical system transmits and receives the data and the control signal through a single port.
Abstract:
Disclosed is a variable optical attenuator. The variable optical attenuator includes an electrochromic device having a reflective property or a transflective property, a lens configured to convert input light to focused light or collimated light and input the focused light or the collimated light to the electrochromic device, and an outputter configured to output light reflected from the electrochromic device, in which the electrochromic device is configured to attenuate an intensity of the input light by controlling a reflectivity and a transmissivity of the input light based on an element included in the electrochromic device and a voltage to be applied to the electrochromic device.
Abstract:
Disclosed is a spectroscopic device including a planar lightwave circuit to which light passing through an optical fiber is input, a wavelength divider configured to divide a wavelength of light passing through the planar lightwave circuit, a beam splitter configured to divide a traveling direction of light passing through the wavelength divider into an external sample inlet and an internal sample inlet and adjust power of the divided light, a charge-coupled device (CCD) image sensor configured to covert light transmitted from the internal sample inlet to an electrical signal or convert light reflected by the external sample inlet to an electrical signal, a control and signal processor configured to process the electrical signal to indicate a light intensity based on each wavelength, and an input and output interface configured to perform a spectrum analysis for each wavelength using the processed electrical signal.
Abstract:
Provided herein is an optical module including: an optical receptacle including a first lens and a second lens; a lens module including a lens unit facing the second lens of the optical receptacle; and an optical element configured to receive a beam emitted from the lens module or form a beam to be emitted to the lens module. A horizontal length and a vertical length of a cross-section of the first lens may differ from each other, and a horizontal length and a vertical length of a cross-section of the second lens may differ from each other.
Abstract:
A multi-channel receiver optical sub assembly module for a fiber Bragg grating sensor according to an embodiment of the present invention includes a housing, a connection socket, an optical bench, a thermoelectric cooler, an arrayed waveguide grating chip, a photodiode array disposed on the optical bench and including a plurality of photodiode chips connected to the optical channels of the arrayed waveguide grating chip, and a printed circuit board which is connected to the other side of the housing while passing through the other side of the housing, of which a portion of a body is disposed on the optical bench, and which is connected to the photodiode array.
Abstract:
Disclosed is a multi-wavelength transmission apparatus including a wavelength divider to divide an optical signal by wavelength and output wavelength-divided optical signals to different positions, the optical signal being received from an optical circulator, a first cylindrical lens to diverge the wavelength-divided optical signals along an X axis and a Y axis and allow the wavelength-divided optical signals to be promoted in a Z-direction, a second cylindrical lens to diverge optical signals output from the first cylindrical lens along the X axis and the Y axis and allow the output optical signals to be promoted in the Z-direction, and a reflector to reflect optical signals output from the second cylindrical lens toward the second cylindrical lens, the first cylindrical lens being identical in shape to the second cylindrical lens and rotated by 90° in an Y-axial direction based on the second cylindrical lens.
Abstract:
Provided is a multi-channel optical subassembly. The multi-channel optical subassembly includes a first sub-mount including first and second areas having different thicknesses, a photoelectric device provided in the first area, a circuit board provided in the second area, a second sub-mount inserted into and fastened to the first guide hole and coupled to the first sub-mount, an optical fiber array fixed to the second sub-mount to provide a path through which light emitted from the photoelectric device is received or transferred, and a micro-lens array mounted on the second sub-mount. The first guide hole is provided in one of the first and second areas. The micro-lens array includes a lens collecting the light between the photoelectric device and the optical fiber array.
Abstract:
Provided is an endoscopic apparatus for thermal distribution monitoring, and more particularly, an endoscopic apparatus for thermal distribution monitoring that is capable of providing a functional image in which various images such as a real image and a thermal image, are matched to one another. The endoscopic apparatus includes: an image collecting unit including a thermal image collecting unit collecting a thermal image from an image signal of an object and a real image collecting unit collecting a real image from the image signal of the object; a controller transmitting a control signal to the image collecting unit so as to transmit the image signal to one of the thermal image collecting unit and the real image collecting unit according to a preset period; and a display displaying the collected thermal image and real image.