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7397018 |
Amplitude and phase controlled adaptive optics system
An adaptive optics system is provided. The system includes a light source, a pair of deformable mirrors and a detection module. The light source is configured to provide an outgoing beam. The...
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6927909 |
Integrated magneto-optical modulator with optical isolator, method of manufacturing the same and optical communication system using the same
The integrated magneto-optical modulator with optical isolator of the present invention comprises an optical isolator unit, a magneto-optical modulator unit, an impedance adjuster. The optical...
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6728436 |
Optical signal modulation method and optical signal transmission system for high speed transmission system
The invention relates to an optical signal transmission system with phase modulation and the implementation method. The system adds a phase modulator in the optical signal-emitting module. The...
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6724514 |
Faraday rotator with improved magnetooptic property
A liquid phase epitaxy method is used to grow the Faraday rotator with a small saturation field (Hs). The Faraday rotator has the formula: Bi 3−x−y−z Gd x Tb y M z Fe 5−w−n Ga w P n O 12...
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6673146 |
Method of manufacturing a magnet-free faraday rotator
A method of manufacturing is used to manufacture a magnet-free Faraday rotator having a square hysteresis loop, the Faraday rotator being formed of a bismuth-substituted rare earth iron garnet...
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6483645 |
Garnet crystal for Faraday rotator and optical isolator having the same
An optical isolator comprsing at least two parts of a Faraday rotator obtained from a garnet crystal and an analyzer, which is small in size, can be mounted directly to a semiconductor laser. The...
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6462856 |
Method and apparatus for modulating an optical signal using polarization
A low-rate data transmission system and method are disclosed that use the Faraday effect to modulate the polarization state of light traveling in an optical fiber. The resulting change in...
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6462857 |
Optical modulator and optical modulation method
An optical modulator includes a magnetic ferrite single crystal, an optical source, a photoreceptor system and an analyzer. The magnetic ferrite single crystal has a transducer mounted and arranged...
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6309557 |
Magnetic garnet material and faraday rotator using the same
An object is to provide a magnetic garnet material, even if a thickness of an element is made thin, in which a sufficient Faraday rotation capacity can be obtained, a magnetic field for saturation...
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6275323 |
Optical attenuator
A specific polarized light component out of a light wave passed through a magneto-optic crystal (for example YIG) is extracted by a polarizer. The intensity of the light beam output from the...
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6271954 |
Waveguide absorption modulator with integral optical isolator
Methods and apparatus for isolating a modulation region of an external modulator that has a semiconductor waveguide structure that comprises at least one integral isolation region.
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6018411 |
Optical device utilizing magneto-optical effect
The present invention provides an optical device making use of a magneto-optical effect. The optical device comprises: a reflector for reflecting an input beam as a reflected beam; a...
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5999305 |
Optical device which makes use of magneto-optical effect
An optical device which can be used as a Faraday rotator which can provide an arbitrary Faraday rotation angle in accordance with a positional condition. The optical device includes first and...
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5689361 |
Apparatus and method for femtosecond pulse compression based on selective attenuation of a portion of an input power spectrum
An apparatus for, and method of, decreasing a temporal duration of an optical input pulse having an input power spectrum associated therewith, the apparatus and method operative on at least...
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5521741 |
Polarization plane switch and optical switching device using the same
A polarization plane switch comprising a Faraday rotator made of an iron-containing garnet single-crystal film and magnetic field applying devices capable of reversing a magnetic field to be...
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5463316 |
Magnetooptic sensor head
A reflection type magnetooptic sensor head is disclosed. The respective structural elements are aligned following a light source in the order of a light inputting/outputting path, polarizer,...
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5402259 |
Linear electroabsorptive modulator and related method of analog modulation of an optical carrier
Apparatus, and a corresponding method for it use, for directly modulating an optical carrier with a radio-frequency (rf) electrical signal. A semiconductor electroabsorptive modulator is operated...
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5351151 |
Optical filter using microlens arrays
An optical filter device comprised of two parallel arrays of lenses. Each lens in the first array faces a lens in the second array to form a pixel. Lens pairs in a pixel are separated by the sum of...
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5258869 |
Xerographic laser light modulation with built-in light leveling using optical circulators
An optical system in which optical circulators with polarization plates are used for light modulation of plane polarized light waves. The light modulation is used for black and white printing, grey...
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5255119 |
Reflective magneto-optic device with an embedded conductor channel
A reflective mode, magneto-optic spatial light modulator (MOSLM) device has planar electrical conductors which function both as optical mirror surfaces and as the address conductors for random...
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5241412 |
Magneto-optic device with reflective conductor
A reflective mode, magneto-optic spatial light modulator (MOSLM) device has one or more pixel elements formed from a selected magneto-optic material with a respective pair of coincident current...
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4806885 |
Magnet-electro-optic effect light modulator
A magneto-electro-optic effect light modulator has a rectangular solid-like semiconductor element made of one member selected from the group of an n-type semiconductor, a p-type semiconductpr and...
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4714325 |
Magneto-optical printing head and method of grey-scale image generation using such a printing head
Magneto-optical printing head for generating a grey-scale image on a recording substrate has a magneto-optical light-switching mask with light-switching elements which are switched...
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4669829 |
Device for controlling the light passing to a light-sensitive element
The device consists of a transparent container, partly filled with a ferromagnetic fluid surrounding a bubble of a transparent liquid. By an external magnetic field the ferromagnetic fluid is...
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4661809 |
Magneto-optic chip with gray-scale capability
Methods of operation and details of chip design to realize gray-scale capability in magneto-optic chips. Individual pixels are operated in three states by the addition of a stripped state to the...
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4575722 |
Magneto-optic display
A display adapted to be helmet-mounted or used for projecting and having the multi-mode capability of full three-primary color displays; gray scale or halftones; stereo imagining; image processing;...
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4027948 |
Low loss laser modulator
Laser light is polarized and sent through a low loss rotator. The amount of otation is modulated by a modulator source. The laser light is then sent through a further polarizer where its intensity...
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3928870 |
Magneto-optical processes and elements using tetrahedrally coordinated divalent cobalt-containing magnetic material
A magneto-optical readout process which employs a tetrahedrally coordinated divalent cobalt-containing magnetic material is provided. This magnetic material exhibits giant magneto-optical effects...
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3850506 |
MODULATION BY A MAGNETIC FIELD OF ELECTROMAGNETIC RADIATION PRODUCED BY THE DECAY OF TRIPLET STATES
This disclosure describes a process and devices for modulating electromagnetic radiation, e.g., visible light, by means of variation in a magnetic field on a substance, e.g., anthracene, pyrene,...
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3845411 |
OPTICAL HOLMIUMETHYLSULPHATE MODULATOR
Method and apparatus for modulating the intensity of an infra-red laser. Same consists of placing a holmiumethylsulphate crystal in the path of said beam and effecting beam modulating control...
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3843939 |
METHOD AND APPARATUS FOR MODULATING LIGHT WITH A MAGNETIC FIELD
Delayed fluorescence due to triplet-triplet exciton annihilation in crystalline host materials sensitized with certain dyes (such as anthracene sensitized with Rhodamine B) is modulated by magnetic...
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3545840 |
ENHANCED TRANSVERSE KERR MAGNETO-OPTICAL TRANSDUCER
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3516747 |
FIELD MODULATION METHOD FOR OBSERVING ULTRA - HIGH - SPEED FERROMAGNETIC DOMAIN DYNAMICS
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3475738 |
MAGNETO-OPTICAL DATA STORAGE
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3457417 |
SECOND HARMONIC SEMICONDUCTOR MODULATORS FOR COHERENT RADIATION
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3421002 |
THIN FILM MAGNETIC LIGHT MODULATOR
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3393033 |
Radiation modulation cell utilizing a magnetic polymer
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3328110 |
Electromagnetic radiation valve
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3311845 |
Q-switching apparatus for a laser device
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3247765 |
Light switching means
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3213281 |
Inhomogeneous magnetic field controlled laser device
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3156651 |
Light transparent ferrimagnetic garnets
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