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7620276 |
Optimized grating based biosensor and substrate combination
A grating-based biosensor is disclosed where the biosensor is constructed and arranged such that the grating lines of the sensor align with an optical axis of a birefringent substrate, so as to...
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7618201 |
Optical module
An optical-waveguide device mounted on a fixing member having a pair of opposing upright walls and a sub-mount unit including a metallic sub-mount of a rectangular solid shape inserted between the...
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7616851 |
Tunable wavelength filter device
A tunable wavelength filter device that includes a light wave circuit having an input light wave path, an output light wave path, and a plurality of reflector elements between the input light wave...
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7613378 |
Optical device comprising an optical component and an optical medium with different refractive indices
The present invention consists in an optical device comprising an optical component and an optical medium with different refractive indices, said optical component being at least partly immersed in...
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7609919 |
Coupling-enhanced surface etched gratings
The invention describes the method and apparatus for enhancement of coupling efficiency in effective-ridge laterally-coupled surface-etched grating waveguide structures, where a slab waveguide has...
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7609917 |
Method and apparatus for controlling waveguide birefringence by selection of a waveguide core width for a top cladding
A method and apparatus for controlling waveguide birefringence by selection of a waveguide core width for a tuned top clad is described herein. In one example, a dopant concentration within a top...
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7606488 |
Wavelength-division-multiplexing optical transmission system and control method thereof
In a wavelength-division-multiplexing optical transmission system in which optical-node apparatuses that perform relay transmission of wavelength-division-multiplexed light are located at specified...
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7604984 |
Spatially scanned optical reader system and method for using same
An optical reader system is described herein that uses a scanned optical beam to interrogate a biosensor to determine if a biomolecular binding event occurred on a surface of the biosensor. In one...
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7603004 |
Neural network demodulation for an optical sensor
Methods and systems of neural network demodulation for an optical sensor. An optical sensor may be coupled to a structure and be capable of reflecting a reflected optical signal. A wavelength of...
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7602823 |
Light-emitting element
A light-emitting element includes a light amplification unit and an external resonator. The light amplification unit has a function of amplifying light. The external resonator is connected to the...
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7599587 |
Wavelength selective switch
In a wavelength selective switch according to the present invention, an isolator is disposed between a lens array and a first lens. The isolator includes an isolator element and a transmitting...
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7599586 |
Integrated chip
An integrated chip for data communication, telecommunication and optical analysis for at least one, two or more wavelengths where the chip can be used not only to emit light but also to detect...
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7596157 |
Laser optical apparatus
A laser optical apparatus which removes speckles from a screen by changing the phase of a laser beam so as to form an image having high visibility. The laser optical apparatus includes an incident...
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7593638 |
Secure upstream transmission in passive optical networks
A method and system for ensuring confidentiality of signal transmission in a point-to-multi point data transmission network like Ether net passive optical network, including at least one hub, at...
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7593615 |
Optical devices for guiding illumination
Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from...
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7593609 |
Method for modulating refractive indices of optical fiber gratings
The present invention proposes a method for modulating refractive indices of optical fiber gratings, wherein the UV exposure on a least one assigned location of an optical fiber grating is divided...
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7593606 |
Optical modulator including waveguide grating structure and multiple quantum well layer
An optical modulator and related methods are described. In accordance with one embodiment, the optical modulator comprises a horizontal waveguide grating structure (WGS) receiving an incident...
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7590318 |
Optoelectronic component comprising a diffraction grating with a transverse structure
The field of the invention is that of optoelectronic components with a buried stripe structure. The optoelectronic device according to the invention is a stripe structure, comprising at least one...
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7587112 |
Optical device and light control method
In order to prevent a spectrum of a wavelength channel from becoming narrower, a device according to the present invention includes a light dividing section capable of dividing a wavelength...
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7587103 |
Method for ultrafast optical deflection enabling optical recording via serrated or graded light illumination
In one general embodiment, a method for deflecting an optical signal input into a waveguide is provided. In operation, an optical input signal is propagated through a waveguide. Additionally, an...
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7583875 |
Illumination device, image display device, and projector
An image display device includes: a first face; a laser light source device emitting laser light; and a diffractive optical element on which the laser light emitted from the laser light source...
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7583423 |
Switchable polymer-dispersed liquid crystal optical elements
Transmission and reflection type holograms may be formed utilizing a novel polymer-dispersed liquid crystal (PDLC) material and its unique switching characteristics to form optical elements....
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7580602 |
Beam apodization for a planar solid immersion mirror
An apparatus includes a planar waveguide, first and second gratings for coupling electromagnetic radiation into the planar waveguide, and a beam shaper for controlling the amplitude distribution of...
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7580599 |
Optical switch and MEMS package
An optical switch switches ports through which a beam is input and output and includes an optical system through which the beam passes; a movable reflector that is enclosed in a casing and...
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7580184 |
Gires-Tournois etalons and dispersion compensators
A Gires-Tournois etalon (GTE) ( 10 ) comprising an optical fiber ( 12 ) in which a primary chirped fiber Bragg grating (FBG) ( 16 ) is provided, an RF signal generator ( 20 ), a piezoelectric...
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7574083 |
Optical device having diffraction gratings coupling guided wave, and its manufacture method
An optical waveguide structure formed over a substrate defines an optical waveguide for guiding light along a direction parallel to the substrate surfaces, and biasing a light intensity...
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7574075 |
Fiber Bragg grating and fabrication method
A method of fabrication of a thermally stabilized Type I fiber Bragg grating-based temperature sensing device includes doping a fiber core material with germanium or germanium oxide for enhancing...
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7573918 |
Dispersion compensated mode-locked pulsed lasers and optical amplifiers
Techniques, apparatus and systems for providing compensation mechanisms for mode-locked lasers and optical amplifiers and a dispersion compensation mechanism to allow a mode-locked laser and an...
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7558481 |
Method for optimizing enhanced DWDM networks
An enhanced Dense Wave Division Multiplexing (DWDM) network is optimized through bundling subchannel traffic in DWDM channels at network nodes and “hubbing” the DWDM channels at nodes receiving...
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7558456 |
Optical waveguide device
An optical waveguide device includes a lower cladding layer, a high refractive index region provided on the lower cladding layer, a pair of cores provided on the lower cladding layer on both sides...
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7557990 |
Method and apparatus for a Bragg grating tunable filter
The present invention relates to tunable filters. More specifically, the present invention pertains to a method and apparatus that allows tuning of a wavelength over a large optical band. The...
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7555220 |
Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation
An optical equalizer/dispersion compensator (E/CDC) comprises an input/output for receiving a multiplexed channel signal comprising a plurality of channel signals of different wavelengths. An...
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7555175 |
Arrayed waveguide grating optical multiplexer/demultiplexer
An arrayed waveguide grating optical multiplexer/demultiplexer 10 of the present invention 10 comprises one arrayed waveguide grating (AWG) 20 having two input waveguides 21, 22 and two...
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7551818 |
High power optical fiber laser array holographic coupler manufacturing method
A chirped grating is made in a thin film layer or a glass layer for producing a holographic optical element within the layer well suited for use as an optical coupler for coupling side fired laser...
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7551815 |
Method of monitoring and controlling the bit error rate (BER) in an optical communication network
A method is disclosed for monitoring and controlling the bit error rate (BER) in an optical communication network where an optical receiver in the optical transmission network. The method includes...
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7551810 |
Segmented fiber optic sensor and method
A fiber optic sensor for sensing the presence of an analyte has a plurality of optical fibers each of which has at least one analyte sensing segment and one or more low loss lead portion, where the...
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7551809 |
Optical fiber delivery system for delivering ultrashort optical pulses and optical system including the same
An optical fiber delivery system for delivering ultrashort optical pulses that can efficiently transmit high peak power, ultrashort optical pulses from an optical pulse source to a desired position...
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7548671 |
Optical device including waveguide grating structure
Optical devices including waveguide grating structures are described. In accordance with one embodiment, an optical device is provided comprising a horizontal waveguide grating structure having at...
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7546017 |
Electro-photonic modulators
Various embodiments of the present invention are directed to modulators that can be operated electronically and used to modulate electromagnetic radiation. In one embodiment of the present...
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7546012 |
Waveguide system with diffracting structure
An optical waveguide system includes an optical element, a three-dimensional diffracting structure positioned around the optical element, and a waveguide. The optical element and the diffracting...
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7546011 |
Monolithically integrated optical devices with amorphous silicon arrayed waveguide gratings and InGaAsP gain
An optical waveguide assembly and method of forming the same is described. The optical waveguide assembly includes a waveguide, an amorphous silicon arrayed waveguide grating communicative with the...
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7542641 |
Multi-channel optical device
The multi-channel optical device includes a demultiplexer in a laser cavity. The demultiplexer is configured to demultiplex a multi-channel light beam into a plurality of channels. The device also...
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7542639 |
Holographic pump coupler and laser grating reflector
In the present invention, a volume holographic optical element is used as a pump coupler. The holographic coupler allows at least one pump wavelength to be coupled into the laser medium. The...
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7539368 |
Arrayed waveguide grating
An arrayed waveguide grating has optical input waveguides, a first slab waveguide, an arrayed waveguide comprising plural waveguides of mutually-different lengths, a second slab waveguide and...
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7539361 |
Fiber optic device for measuring a parameter of interest
An optical fiber ( 100 ) utilized as a sensor for measuring a parameter of interest 122 such as temperature, strain, photonic energy intensity, electric field intensity and magnetic field...
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7532791 |
Ultrafast laser machining system and method for forming diffractive structures in optical fibers
An ultrafast laser machining system and method to form diffractive structures in optical fibers. The fiber is mounted with its longitudinal axis perpendicular to the beam path of the laser pulses....
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7532780 |
Method for locating and measuring deformations in a work of civil engineering
A process for locating and measuring deformation in a civil engineering structure wherein at least one geosynthetic fabric ( 1 ) containing a plurality of optical fibers ( 2 a to 2 e ) in...
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7532779 |
Single mode (SM) fiber optical reader system and method for interrogating resonant waveguide-grating sensor(s)
An optical reader system is described herein which has a single mode (SM) optical fiber launch/receive system that uses one or more SM optical fibers to interrogate a biosensor and does not use...
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7529442 |
Polarization-independent electro-optical (EO) switching
In one embodiment, an apparatus includes a passive element including one or more first waveguides and one or more second waveguides. The apparatus also includes an active element integrated into...
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7529437 |
Scalable and defect-tolerant quantum-dot-based quantum computer architectures and methods for fabricating quantum dots in quantum computer architectures
Various embodiments of the present invention are directed to quantum-dot-based quantum computer architectures that are scalable and defect tolerant and to methods for fabricating quantum dots in...
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