Patent application number | Description | Published |
20080260322 | Optical splitter/coupler and optical communication system - An optical splitter/coupler has: a multimode waveguide having an electrooptic effect, and propagating light in a multimode; one incident waveguide propagating light in a single mode, and inputting the light to the multimode waveguide; one pair of emitting waveguides guiding-out, in a single mode, lights which have propagated-in through the multimode waveguide; at least one pair of individual electrodes provided so as to be positioned in vicinities of respective side edges on one surface of the multimode waveguide; and a ground electrode provided on another surface, wherein the multimode waveguide has a length such that 3(n+1) bright spots arise at a central portion and at both side edge portions due to incident light, the individual electrodes are provided at positions corresponding to an upstream-most one pair of the bright spots, and the emitting waveguides are connected to positions corresponding to a downstream-most one pair of the bright spots. | 10-23-2008 |
20090046977 | WAVEGUIDE DEVICE AND OPTICAL NETWORK SYSTEM - A waveguide device comprises a first multimode waveguide; a second multimode waveguide; a pair of intermediate single mode waveguides; an input-side single mode waveguides connected to the first multimode waveguide; a pair of output-side single mode waveguides connected to the second multimode waveguide; a pair of switching electrodes disposed to be superposed on the pair of intermediate single mode waveguides; and a ground electrode. The intermediate single mode waveguides are configured by a material whose refractive index is changed by voltages applied to the switching electrodes, the first multimode waveguide splits an optical signal into two signals whose intensities are equal, and the second multimode waveguide is formed, when voltages are not applied to the switching electrodes, to guide the optical signals out from the output-side single mode waveguides that are provided positions diagonal to the intermediate single mode waveguides through which the optical signals are propagated. | 02-19-2009 |
20090060434 | WAVEGUIDE DEVICE - A waveguide device includes a substrate and a first electrode, a first cladding layer, a waveguide, a second cladding layer, and a second electrode sequentially provided on the substrate. At least one of the first cladding layer, the waveguide, and second cladding layer includes a ligand compound which is capable of coordinating to a metal or metal ion. | 03-05-2009 |
20090148111 | OPTICAL WAVEGUIDE ELEMENT - An optical waveguide element includes: an optical waveguide including an organic non-linear optical material; a first electrode arranged on one surface side of the optical waveguide; a second electrode arranged on another surface side of the optical waveguide; a protective member disposed on the second electrode, the protective member including (i) a third electrode which is provided on a first surface of the protective member, the first surface facing the second electrode, the third electrode being electrically connected to the second electrode, (ii) a fourth electrode which is provided on a second surface of the protective member, the second surface opposing the first surface, and (iii) a conductive portion which penetrates through the protective member from the first surface to the second surface, and electrically connects the third electrode and the fourth electrode. | 06-11-2009 |
20100226605 | WAVEGUIDE ELEMENT AND METHOD OF PRODUCTION THEREOF - There is provided a method of producing a waveguide element comprising steps of forming a lower cladding layer having a refractive index n | 09-09-2010 |
20100265503 | OPTICAL DEVICE AND MULTIPLE BEAM SCANNER - There is provided an optical device including: a passive core layer in which is formed an optical circuit having a refractive index n | 10-21-2010 |
20120212566 | LIGHT EMITTING COMPONENT, PRINT HEAD, AND IMAGE FORMING APPARATUS - A light emitting component includes plural of light emitting elements arranged in rows on a substrate, plural lenses provided to face light emitting faces to which light beams of the plural light emitting elements are emitted, and condensing the light beams emitted from the light emitting elements, and one or plural pedestals holding the lenses such that the light emitting faces of the respective light emitting elements of the plural light emitting elements and the lenses that face the light emitting elements face the light emitting faces via gaps. | 08-23-2012 |
20130294234 | COMMUNICATION MANAGEMENT SYSTEM, COMMUNICATION MANAGEMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A communication management system includes a measuring unit, an assigning unit, and a distribution controller. The measuring unit measures, for each of clients, a traffic pattern representing a pattern of temporal changes in an amount of communication traffic regarding the client. The assigning unit assigns, to each of plural communication channels, one or more clients that use the communication channel, on the basis of the traffic patterns of the clients measured by the measuring unit. The distribution controller performs control of selecting, as a communication channel with which distribution data is to be distributed to one or more of the clients, at least one of the plural communication channels to which the assigning unit has assigned the clients. | 11-07-2013 |