Abstract:
The present invention relates to a method for preparing a graphene/HE-NCM composite, wherein more than one HE-NCM particles of the formula (1) xLi2MnO3.(1−x)LiNiyCozMn1-y-zO2, wherein 0
Abstract:
In various embodiments, the present invention provides a relatively low cost and substantially chemical free method of making high surface area mesoporous carbon (as well as novel mesoporous carbon hollow tube (MCHT) structures made thereby) utilizing the cellulose framework found in natural wood and/or other plant fibers to make porous carbon structures. In some embodiments, the present invention will provide porous carbon structures having higher surface area than porous carbon structures made using prior art template methods, higher adsorption capacity than commercial activated carbon, and, in some embodiments, excellent electrochemical capacitance and storage capabilities. These new carbon materials may be adapted for a wide variety of uses including such things as removal of both inorganic and organic toxic pollutants from water, energy storage/conversion, supercapacitor electrodes for electrochemical energy storage, adsorption, and catalysis.
Abstract:
A device includes a passive photonic layer located over a substrate and including at least one passive photonic element configured to propagate an optical signal therein. An electronic layer located between said substrate and said passive photonic layer includes at least one electronic device configured to propagate an electrical signal therein. An active photonic layer located over said passive photonic layer includes an active photonic device optically coupled to said passive photonic element and configured to convert between said electrical signal and said optical signal.
Abstract:
An optical device comprising a multi-core optical fiber coupler. The multi-core optical fiber coupler includes a substrate having a planar surface and turning mirrors located along the planar surface, each of the turning mirrors having a reflective surface oriented to change a direction of light between a direction that is parallel to the planar surface and a direction that is substantially non-parallel to the planar surface. The turning mirrors form a lateral pattern along the planar surface, the lateral pattern being configured to approximately match a pattern of optical cores in a multi-core optical fiber whose end segment faces the pattern and is positioned substantially normal to the planar surface of the substrate.
Abstract:
A lower lockpin rotation shaft assembly includes a lower lockpin rotation shaft body, an outer end portion thereof having a first coupler lifting bar hole, an intermediate portion thereof having a connecting key; and a lower lockpin rotation shaft bush, an outer end portion of the lower lockpin rotation shaft bush having a second coupler lifting bar hole, and an inner end portion of the lower lockpin rotation shaft bush being operatively connected to an inner end portion of the lower lockpin rotation shaft body. Further, the present invention further provides a double-side operating coupler and a coupler draft gear having the above lower lockpin rotation shaft assembly. The coupler draft gear further includes two coupler lifting bars and two coupler lifting bar seats. Each of the coupler lifting bars is inserted in a keyhole-shaped through hole of corresponding coupler lifting bar seat, and the coupler lifting bar has a restrained segment at a fitted portion of the coupler lifting bar with the coupler lifting bar seat. Coupler heads of the two coupler lifting bar are inserted through the keyhole-shaped through holes of the two coupler lifting bar seats and then coupled with the first coupler lifting bar hole and the second coupler lifting bar hole of the double-side operating coupler. There is a gap between the restrained segment of each coupler lifting bar and walls of the rectangular hole of the keyhole-shaped through hole.
Abstract:
An apparatus, comprising an optical switch having Nin optical input ports and Nout optical output ports. The optical switch includes an input array of 1×Nout optical switches, an output array of Nin×1 optical switches and a plurality of optical crossconnect zones located in-between the input array and the output array. Nin and Nout are integers greater than 1, and, each of Nin*Nout output waveguide arms of the 1×Nout optical switches are optically coupled to a corresponding one of Nin*Nout input waveguide arms of the Nin×1 optical switches comprising an optical switch.
Abstract:
An electro-optic modulator structure, a method for fabricating the electro-optic modulator structure, a method for operating an electro-optic modulator device that derives from the electro-optic modulator structure and a related communications apparatus that includes the electro-optic modulator structure all are directed towards effecting a comparatively low voltage operation of the electro-optic modulator device predicated upon consideration of optimal charge carrier injection efficiency characteristics of a PIN diode charge carrier injection based micro-ring electro-optic modulator structure as a function of applied bias voltage. To realize the foregoing result, at least in part, the PIN diode charge carrier injection based electro-optic modulator structure includes at least one of a p-doped region and an n-doped region that has a relatively high volume dopant concentration at a surface thereof.
Abstract:
An optical device comprising a multi-core optical fiber coupler. The multi-core optical fiber coupler includes a substrate having a planar surface and turning mirrors located along the planar surface, each of the turning mirrors having a reflective surface oriented to change a direction of light between a direction that is parallel to the planar surface and a direction that is substantially non-parallel to the planar surface. The turning mirrors form a lateral pattern along the planar surface, the lateral pattern being configured to approximately match a pattern of optical cores in a multi-core optical fiber whose end segment faces the pattern and is positioned substantially normal to the planar surface of the substrate.
Abstract:
An apparatus that comprises an optical-mode-converter. The optical-mode-converter includes a optical waveguide including a segment directly located on a substrate and a cantilevered segment located over said substrate and separated from said substrate by a cavity, and, said cantilevered segment includes a core surrounded by a cladding. The optical-mode-converter also includes a dielectric material filling said cavity and contacting said cantilevered segment over said cavity, wherein said dielectric material has a refractive index that is less than a refractive index of said cladding and that is no more than about 20 percent less than said refractive index of said cladding.
Abstract:
An anti-creep mechanism for coupler includes a lower lockpin rod, a coupler shank and a rotation shaft. The rotation shaft is disposed in an elongate mounting hole of the lower lockpin rod and a circular mounting hole of the coupler shank so that the lower lockpin rod and the coupler shank are hinged together. A boss is axially disposed on an upper surface of the rotation shaft, and a groove is axially provided in a wall of the mounting hole of the coupler shank above the rotation shaft to receive the boss of the rotation shaft. The rotation shaft is axially movable relative to the lower lockpin rod and the coupler shank and has two operating positions. When the rotation shaft is moved to the first operating position, an inner end portion of the boss is positioned in the elongate mounting hole of the lower lockpin rod, and a top wall of this elongate mounting hole abuts against the boss. If this lower lockpin rod is rotated in a coupler unlocking direction, the anti-creep bulge of the lower lockpin rod abuts against the anti-creep surface of the coupler shank. When the rotation shaft is moved to the second operating position, the boss is positioned in the groove of the mounting hole of the coupler shank, and the top wall of this elongate mounting hole abuts against an outer circumferential surface of the rotation shaft. The anti-creep mechanism for coupler of the present invention has a reliable dual anti-unlocking performance for coupler. Besides, the present invention further discloses a coupler.