Abstract: A head-mounted spectrum sensing device is provided which includes an acoustic system, a magnetic system, an ultrasound system, and a control and processing system. The head-mounted spectrum sensing device can judge a risk of dementia according to a thermal image with blood velocity information, a thermal image with magnetic flux information, and a thermal image with ultrasound information.

Abstract: A light transmitting and receiving device and a light detection and ranging system are related. The device includes a light transmitting module and a light receiving module. The light transmitting module includes a light transmitter and a first focusing lens. The light receiving module includes a light receiver, and a second focusing lens. At least one of the light transmitting module and the light receiving module includes a planar waveguide including a substrate and a refracting element. Because all the refracting elements could be integrated into a planar waveguide, the required mechanism is reduced in size. The loss of optical transmission is much smaller too because the refractive index of silicon greater than the refractive index of air.

Abstract: An optical connector includes a main body, a ribbon fiber and a ribbon fiber holder. The main body includes a bottom surface, and a mounting surface facing away from the bottom surface. The bottom surface arranged with a plurality of first lenses, the mounting surface is arranged with a number of second lenses corresponding with each second lens. The ribbon fiber includes a number of optical fibers arranged in an array, each optical fibers is corresponded with one of second lenses. Each optical fiber includes an incident surface, an angle between the incident surface and a horizontal surface is about 45 degrees. The ribbon fiber holder is matched with the main body and configured for clamping the ribbon fiber to make each second optical lens being located under the optical fiber and aligned with the incident surface of each optical fiber.

Abstract: An optical waveguide directional coupler includes a base having a planar member and a ridge member and an optical waveguide in the base. The ridge member extends from the planar member and has an upper surface where the optical waveguide exposed. The optical waveguide includes a first flat side surface, a second flat side surface parallel to the first flat side surface, a third flat side surface, a fourth flat side surface parallel to the third flat side surface, and a first flat connection side surface. An included angle ?1 between the first and third flat side surfaces is an obtuse angle, an included acute angle ?1 is formed between the first flat connection side surface and the second flat side surface, and ?1 and ?1 satisfy ?1<(180°??1).

Abstract: An optical communication device includes an optical fiber, two chips, a light emitter, a photoelectric conversion device, and a circuit board. The chips includes a substrate, and a polarizing beam splitter positioned on the substrate, the polarizing beam splitter includes a first coupling device, second coupling device, a Y-waveguide, and a TM filter coupling to the third channel. The chips, the light emitter, and the photoelectric conversion device are coupled to the circuit board, the light emitter, and the photoelectric conversion device are connected electrically with the circuit board.

Abstract: A method for manufacturing a polarizing splitter includes providing a substrate including a top surface; forming a ridged asymmetric Y-shaped waveguide and a base by etching the substrate from the top surface into an inner region, the base includes an upper surface paralleling with the top surface, the ridged asymmetric Y-shaped waveguide projects from the upper surface of the base, and includes an input section configured for transmitting both a transverse electric wave and a transverse magnetic wave, a first branch configured for transmitting the transverse magnetic wave only, and a second branch configured for transmitting the transverse electric wave only, the first and the second branches branch from the input section; and forming a pair of strip-shaped first electrodes on the upper surface of the base, the strip-shaped first electrodes arranged at opposite sides of the input section and parallel with a central axis of the input section.

Abstract: An optical waveguide lens includes a substrate, and a planar waveguide and a media grating formed on the substrate in sequence. The media grating includes a first group of gratings located adjacent to the light source and a second group of gratings away from the light source. The first group of gratings and the second group of gratings each include a plurality of strip-shaped films arranged in parallel. The first group of gratings and the planar waveguide under the first group of gratings cooperatively define a first waveguide section. The second group of gratings and the planar waveguide under the second group of gratings cooperatively define a second waveguide section. Light radiated from a light source passes through the optical waveguide lens and is successively converged by the first waveguide section and the second waveguide section. An optical coupling module incorporating the optical waveguide lens is also provided.

Abstract: An optical fiber coupling connector includes an optical coupling lens and a jumper. The optical coupling lens includes a first body having a first top surface and a connected first mounting surface, two plugs protruding from the first mounting surface, and two sliders. The first mounting surface defines two buffer gaps. Each slider is located at one side of a buffer gap away from the first body and defines an engagement groove facing away from the first body. The jumper includes a second body having a second mounting surface and two clamping arms protruding from the second mounting surface. The second mounting surface faces the first mounting surface and defines two plug holes for receiving the plugs. Each clamping arm defines a slide groove with an engagement portion protruding toward the other slide groove. Each engagement portion engages in an engagement groove.

Abstract: A method for manufacturing a polarizing splitter includes providing a substrate including a top surface; forming a ridged asymmetric Y-shaped waveguide and a base by etching the substrate from the top surface into an inner region, the base includes an upper surface paralleling with the top surface, the ridged asymmetric Y-shaped waveguide projects from the upper surface of the base, and includes an input section configured for transmitting both a transverse electric wave and a transverse magnetic wave, a first branch configured for transmitting the transverse magnetic wave only, and a second branch configured for transmitting the transverse electric wave only, the first and the second branches branch from the input section; and forming a pair of strip-shaped first electrodes on the upper surface of the base, the strip-shaped first electrodes arranged at opposite sides of the input section and parallel with a central axis of the input section.

Abstract: An optical communication device includes an optical fiber, two chips, a light emitter, a photoelectric conversion device, and a circuit board. The chips includes a substrate, and a polarizing beam splitter positioned on the substrate, the polarizing beam splitter includes a first coupling device, second coupling device, a Y-waveguide, and a TM filter coupling to the third channel. The chips, the light emitter, and the photoelectric conversion device are coupled to the circuit board, the light emitter, and the photoelectric conversion device are connected electrically with the circuit board.

Abstract: An optical connector includes a main body, a ribbon fiber and a ribbon fiber holder. The main body includes a bottom surface, and a mounting surface facing away from the bottom surface. The bottom surface arranged with a plurality of first lenses, the mounting surface is arranged with a number of second lenses corresponding with each second lens. The ribbon fiber includes a number of optical fibers arranged in an array, each optical fibers is corresponded with one of second lenses. Each optical fiber includes an incident surface, an angle between the incident surface and a horizontal surface is about 45 degrees. The ribbon fiber holder is matched with the main body and configured for clamping the ribbon fiber to make each second optical lens being located under the optical fiber and aligned with the incident surface of each optical fiber.

Abstract: An optical PCB includes a substrate layer, a first light waveguide layer and a second light waveguide layer. The first light waveguide layer and the second light waveguide layer are positioned on the substrate layer and are optically coupled with each other. The first light waveguide layer includes a first tapered end facing toward the second light waveguide layer, and the second light waveguide layer includes a second taped end facing toward the first light waveguide layer. The first light waveguide layer and the second light waveguide layer are optically coupled with each other via the first tapered end and the second tapered end.

Abstract: An optical jumper includes a fiber housing and two clamping arms. The fiber housing includes a top surface and a front surface connected to the top surface. The fiber housing defines a groove in the top surface and receiving channels in the bottom of the groove. The fiber housing defines through holes passing through the front surface. Each of the through holes is aligned with and communicated with a respective one of the receiving channels. The fiber housing defines a recess in the top surface. The recess is close to the front surface with respect to the groove. The recess is communicated with the receiving channels through the through holes. The two clamping arms are extending from the fiber housing in the same direction.

Abstract: An optical waveguide lens includes a base, a Y type waveguide, a polarized grating. The Y type waveguide has a first gate, a second gate and a third gate. The first gate is located on one edge of the base, the second gate and the third gate are located on an opposite edge of the base. The polarized grating is formed on the Y type waveguide and adjacent to the first gate of the Y type waveguide.

Abstract: A polarizing splitter includes a base, an asymmetric Y-shaped waveguide, and a pair of strip-shaped electrodes. The Y-shaped waveguide protrudes from the upper surface and includes an input section for the passage of both transverse electric and transverse magnetic waves, a first branch for transmitting the transverse electric wave only, and a second branch for transmitting the transverse magnetic wave only. The first branch and the second branch branch from the input section. The electrodes are positioned on the surface, arranged at opposite sides of the input section, and are substantially parallel with a central axis of the input section.

Abstract: An optical waveguide lens includes a substrate, and a planar waveguide and a media grating formed on the substrate in sequence. The media grating includes a first group of gratings located adjacent to the light source and a second group of gratings away from the light source. The first group of gratings and the second group of gratings each include a plurality of strip-shaped films arranged in parallel. The first group of gratings and the planar waveguide under the first group of gratings cooperatively define a first waveguide section. The second group of gratings and the planar waveguide under the second group of gratings cooperatively define a second waveguide section. Light radiated from a light source passes through the optical waveguide lens and is successively converged by the first waveguide section and the second waveguide section. An optical coupling module incorporating the optical waveguide lens is also provided.

Abstract: An optical fiber coupling connector includes an optical coupling lens and a jumper. The optical coupling lens includes a first body having a first top surface and a connected first mounting surface, two plugs protruding from the first mounting surface, and two sliders. The first mounting surface defines two buffer gaps. Each slider is located at one side of a buffer gap away from the first body and defines an engagement groove facing away from the first body. The jumper includes a second body having a second mounting surface and two clamping arms protruding from the second mounting surface. The second mounting surface faces the first mounting surface and defines two plug holes for receiving the plugs. Each clamping arm defines a slide groove with an engagement portion protruding toward the other slide groove. Each engagement portion engages in an engagement groove.

Abstract: An optical communication device includes two photoelectric conversion devices, and an optical fiber connection between the photoelectric conversion devices. The photoelectric conversion devices include an optical coupling device, a light emitting device, and an optical receiver. The optical coupling device includes a substrate, a top surface, a bottom surface opposite to the top surface, a first waveguide a second waveguide and a grating, the first connecting portion and the second connecting portion are connected with each other at an overlap area and form a Y-shape, the grating is used to reflect transverse electric waves and passes transverse magnetic waves.

Abstract: An optical waveguide lens includes a base, a Y type waveguide, a polarized grating. The Y type waveguide has a first gate, a second gate and a third gate. The first gate is located on one edge of the base, the second gate and the third gate are located on an opposite edge of the base. The polarized grating is formed on the Y type waveguide and adjacent to the first gate of the Y type waveguide.

Abstract: An optical jumper includes a fiber housing and two clamping arms. The fiber housing includes a top surface and a front surface connected to the top surface. The fiber housing defines a groove in the top surface and receiving channels in the bottom of the groove. The fiber housing defines through holes passing through the front surface. Each of the through holes is aligned with and communicated with a respective one of the receiving channels. The fiber housing defines a recess in the top surface. The recess is close to the front surface with respect to the groove. The recess is communicated with the receiving channels through the through holes. The two clamping arms are extending from the fiber housing in the same direction.