Abstract: An organic light emitting diode (OLED) assembly (100), comprising: a diode superstructure (110) comprising a cathode (140), an anode (120) having a refractive index of na, and an organic light emitting semiconductor material (160) interposed between the cathode (140) and the anode (120); and a light diffracting substructure (150) providing a scattering cross section of light from the diode superstructure (110). The light diffracting substructure (150) comprises: a transparent substrate (156), a plurality of nanoparticles (154) in contact with the substrate (156) and having a refractive index of ns, and a planarization layer (152) over the nanoparticles (154) and having a refractive index of np. Further, np is within 25% of na and ns>np In addition, ns>about 1.9.

Abstract: The evanescent optical coupler is constituted by an IOX waveguide and an optical fiber. The IOX waveguide is formed in a glass substrate and has a tapered section that runs in an axial direction. The IOX waveguide supports a waveguide fundamental mode having an waveguide effective index NW0 that varies within a range ?NW0 as a function of the axial direction. The IOX waveguide can also support a few higher-order modes. The optical fiber supports a fiber fundamental mode having a fiber effective index NF0 that falls within the waveguide effective index range ?NW0 of the waveguide fundamental mode of the tapered section of the IOX waveguide. A portion of the optical fiber is interfaced with the tapered section of the IOX waveguide to define a coupling region over which evanescent optical coupling occurs between the optical fiber and the IOX waveguide.

Abstract: The channel waveguides disclosed herein have bend compensation in the form of at least one compensated bend section. The channel waveguides are formed in a glass-based substrate having a glass-based matrix. The channel waveguide has an waveguide IOX region with a straight section and a bend section. The waveguide IOX region at the bend section is superimposed with a quasi-linear modifying IOX region to form a compensated bend IOX region that defines the compensated bend section. The compensated bend section has a reduced amount of optical loss as compared to if the compensated bend section had a refractive index profile that was the same as the straight section. Methods of forming the compensated bend sections for the channel waveguides are also disclosed.

Abstract: The channel waveguides disclosed herein have bend compensation in the form of at least one compensated bend section. The channel waveguides are formed in a glass-based substrate having a glass-based matrix. The channel waveguide has an waveguide IOX region with a straight section and a bend section. The waveguide IOX region at the bend section is superimposed with a quasi-linear modifying IOX region to form a compensated bend IOX region that defines the compensated bend section. The compensated bend section has a reduced amount of optical loss as compared to if the compensated bend section had a refractive index profile that was the same as the straight section. Methods of forming the compensated bend sections for the channel waveguides are also disclosed.

Abstract: A light guide plate suitable for use in a liquid crystal display device, the light guide plate comprising a glass plate and a light coupler bonded to a edge surface of the light guide plate. Also disclosed is a backlight unit for a liquid crystal display device employing the light guide plate, and a display device employing the backlight unit.

Abstract: The evanescent optical coupler is constituted by an IOX waveguide and an optical fiber. The IOX waveguide is formed in a glass substrate and has a tapered section that runs in an axial direction. The IOX waveguide supports a waveguide fundamental mode having an waveguide effective index NW0 that varies within a range ?NW0 as a function of the axial direction. The IOX waveguide can also support a few higher-order modes. The optical fiber supports a fiber fundamental mode having a fiber effective index NF0 that falls within the waveguide effective index range ?NW0 of the waveguide fundamental mode of the tapered section of the IOX waveguide. A portion of the optical fiber is interfaced with the tapered section of the IOX waveguide to define a coupling region over which evanescent optical coupling occurs between the optical fiber and the IOX waveguide.

Abstract: A backlight unit comprising a first optical component having a first major face and a second major face, a second optical component laminated having a third major face and a fourth major face, wherein the first and third major faces oppose each other, and a discontinuous bonding material deposited between the first and third major faces, the bonding material laminating the first and second optical components.

Abstract: Methods for coupling of waveguides with dissimilar mode field diameters, and related apparatuses, components, and systems are disclosed. In one example, a waveguide coupling assembly includes an input waveguide having a first mode, and a transition waveguide having a first transition waveguide section, a second transition waveguide section, and a tapered section. The first transition waveguide section has a second mode and is disposed proximate to the input waveguide such that a phase matching condition is achieved between the input waveguide and the first transition waveguide section, thereby evanescently coupling the input waveguide to the first transition waveguide section of the transition waveguide. The tapered section is optically connected between the first transition waveguide section and the second transition waveguide section, such that the second mode of the first transition waveguide section is converted to the third mode of the second transition waveguide section by the tapered section.

Abstract: A light guide plate suitable for use in a liquid crystal display device, the light guide plate comprising a glass plate and a light coupler bonded to a edge surface of the light guide plate. Also disclosed is a backlight unit for a liquid crystal display device employing the light guide plate, and a display device employing the backlight unit.

Abstract: Methods for coupling of waveguides with dissimilar mode field diameters, and related apparatuses, components, and systems are disclosed. In one example, a waveguide coupling assembly includes an input waveguide having a first mode, and a transition waveguide having a first transition waveguide section, a second transition waveguide section, and a tapered section. The first transition waveguide section has a second mode and is disposed proximate to the input waveguide such that a phase matching condition is achieved between the input waveguide and the first transition waveguide section, thereby evanescently coupling the input waveguide to the first transition waveguide section of the transition waveguide. The tapered section is optically connected between the first transition waveguide section and the second transition waveguide section, such that the second mode of the first transition waveguide section is converted to the third mode of the second transition waveguide section by the tapered section.

Abstract: A grating-coupler assembly with a small mode-field diameter for photonic-integrated-circuit systems is disclosed. The assembly includes a silicon waveguide supported by a silicon-on-insulator substrate, and a grating coupler supported by the substrate and optically coupled to the silicon waveguide. The assembly has an optical fiber with a mode-field diameter in the range from 5 ?m to 6 ?m. One end of the optical fiber is disposed adjacent the grating coupler to define a coupling efficiency of 0.7 or greater.

Abstract: Mirror systems securing optical fibers to ferrules by thermally securing bonding agents within fiber optic connector housings are disclosed, along with related methods and assemblies. A fiber optic connector includes an optical fiber secured within a ferrule by a temperature-sensitive bonding agent to prevent attenuation-causing movement. The bonding agent is activated (e.g., cured) by heat provided by laser energy incident upon the ferrule, which is at least partially disposed within a fiber optic connector housing and which may be damaged by the laser energy. By shaping and disposing at least one mirror of a mirror system, the laser energy may be reflected to be incident upon the ferrule in a controllable intensity distribution. In this manner, the laser energy may be absorbed uniformly or substantially uniformly along a partial length of the ferrule extending into the housing to accelerate securing of the bonding agent while avoiding damage to the housing.

Abstract: A grating-coupler assembly with a small mode-field diameter for photonic-integrated-circuit systems is disclosed. The assembly includes a silicon waveguide supported by a silicon-on-insulator substrate, and a grating coupler supported by the substrate and optically coupled to the silicon waveguide. The assembly has an optical fiber with a mode-field diameter in the range from 5 ?m to 6 ?m. One end of the optical fiber is disposed adjacent the grating coupler to define a coupling efficiency of 0.7 or greater.