Patent application number | Description | Published |
20090310903 | Optical Element, Integrated Optic Device and Optical Information Transmission System - In a compact formed by subjecting an ultrafine particle brittle material supplied on a substrate to mechanical impact force as a load, whereby the ultrafine particle brittle material is crushed and joined to each other, manganese is added into the ultrafine particle brittle material to form the compact. | 12-17-2009 |
20100158430 | OPTICAL DEVICE, OPTICAL INTEGRATED DEVICE, AND METHOD OF MANUFACTURING THE SAME - At least part of an optical device comprises an optical waveguide of a magneto-optical material. The magneto-optical material comprises a polycrystalline material having no lattice matching with an underlayer material. The optical waveguide exhibits no magnetic anisotropy due to an inverse magnetostriction effect caused by thermal strain. The magnetization direction of the optical waveguide is aligned with a traveling direction of light passing through the waveguide by shape magnetic anisotropy. | 06-24-2010 |
20100260461 | WAVEGUIDE TYPE OPTICAL DEVICE - There is provided a waveguide type optical device whose parasitic capacitance is reduced to allow an increase in signal transmission speed. Bottom electrode | 10-14-2010 |
20100316325 | OPTICAL PHASE MODULATION ELEMENT AND OPTICAL MODULATOR USING THE SAME - Provided is a small-size optical phase modulation element and an optical modulator using it. The optical phase modulation element includes a Plasmon waveguide having a clad made of a metal material having a complex dielectric constant having a negative real part in the used wavelength and a core formed by a dielectric metal material having a complex dielectric constant having a positive real part in the used wavelength. The Plasmon waveguide is connected to an optical waveguide including a clad and a core both having a complex dielectric constant having a positive real part. The core of the Plasmon waveguide and the core of the optical waveguide are formed, at least partially, of the same semiconductor material. The Plasmon waveguide has a function to phase-modulate the incident light when voltage is applied. | 12-16-2010 |
20110001971 | ELECTROMAGNETIC FIELD MEASUREMENT DEVICE - There is provided an electromagnetic field measurement apparatus capable of achieving correct and timely circuit operation detection in an area where electronic devices are mounted at high density. An electromagnetic field measurement apparatus includes: a laser light source; a polarized wave controller that linearly polarizes laser light; an optical fiber probe that has an electrooptic material or a magnetooptic material at its leading end and in which the laser light reflected at the leading end is subjected to polarization modulation in accordance with an electric field intensity or a magnetic field intensity; and an analyzer that converts the laser light reflected by the optical fiber probe into intensity modulated light. The laser light source emits time-multiplexed laser light of a plurality of wavelengths different from one another. The electromagnetic field measurement apparatus further includes: an optical circulator that outputs the laser light linearly polarized by the polarized wave controller to a multiplexer/demultiplexer and outputs the laser light input from the multiplexer/demultiplexer to the analyzer; and a multiplexer/demultiplexer that outputs the laser light to different optical fiber probes according to the wavelength of the laser light and outputs the laser light to the optical circulator. | 01-06-2011 |
20110002578 | OPTICAL DEVICE, METHOD FOR MANUFACTURING THE SAME AND OPTICAL INTEGRATED DEVICE USING THE SAME - Provided is an optical device that includes a ring-shaped optical waveguide and an input/output optical waveguide, and that changes a resonant wavelength of the ring-shaped optical waveguide, in which the ring-shaped optical waveguide includes in part a refractive index control section for controlling a refractive index at a guided wavelength, and the refractive index control section is formed of an optical material having a thermo-optic effect with its sign different from that of an optical material that forms a section of the ring-shaped optical waveguide other than the refractive index control section. | 01-06-2011 |
20120164321 | ELECTRIC FIELD/MAGNETIC FIELD SENSORS AND METHODS OF FABRICATING THE SAME - An electric field sensor is obtained by directly forming an electrooptical film of Fabry-Perot resonator structure on a polished surface at a tip of an optical fiber by an aerosol deposition method. | 06-28-2012 |