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6588945 |
Interface between opto-electronic devices and fibers
An interface system includes separate optical and mechanical interfaces between opto-electronic devices and fibers. This allows each of these components to be optimized for there particular...
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6587618 |
Collimator array and method and system for aligning optical fibers to a lens array
A method for aligning optical fibers to a lens array is provided, including, providing a planar reflective surface facing the front surface of lens array, locating one end of a fiber adjacent the...
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6584271 |
Dual fiber variable optical attenuator
A variable optical attenuator ( 200 ) comprises a dual fiber collimator ( 202 ) and a reflection component ( 206 ) separated by a linear moveable ND filter ( 204 ). The collimator ( 202 ) includes...
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6580558 |
Optical isolator
An optical isolator includes a first pigtail assembly, a first collimating lens aligned with the first pigtail assembly, an optical rotator assembly, an adjustable assembly aligned with the rotator...
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6580856 |
Wavelength division multiplexing/demultiplexing devices using homogeneous refractive index lenses
An improved wavelength division multiplexing device is disclosed. The improved wavelength division multiplexing device has a diffraction grating for combining a plurality of monochromatic optical...
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6574410 |
Planar light waveguide circuit with landmarks
A planar light waveguide circuit includes a plurality of landmarks arranged on the planar light waveguide circuit at intervals of a specific gap starting from a cut section of the planar light...
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6571036 |
Structure facilitating easy assembly of fiber-optic communication components
A structure facilitating easy assembly of fiber-optic communication components includes a lower and an upper support being provided with small and big V-shaped cuts, respectively, for receiving...
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6567578 |
Fiber optic device operating at two or more wavelengths
A fiber optic device is used by fiber optic systems that operate with light at more than one wavelength. The device may be inserted anywhere within the fiber network. The fiber optic device permits...
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6567585 |
Z sharpening for fibre confocal microscopes
A method and apparatus for image sharpening in confocal microscopy or endoscopy observation, the method comprising: collecting true confocal return light from an observational field of an object;...
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6567586 |
Dual fiber collimator
An optical fiber collimator ( 100 ) in an optical system, includes a pair of optical fibers ( 108 ) having emitting cleaved planes ( 112 ) to provide a substantially uniform angled side surface for...
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6567584 |
Illumination system for one-dimensional spatial light modulators employing multiple light sources
The present invention is directed to illuminating a one-dimensional spatial light modulator using an illumination system employing multiple light sources. The illumination system comprises a...
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6563977 |
Compact wavelength multiplexer-demultiplexer providing low polarization sensitivity
An optical multiplexing and demultiplexing device includes: a fiber mounting means for securing a plurality of optical fibers each terminating in a fiber end, at least one of the fiber ends...
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6563976 |
Cost-effective wavelength division multiplexer and demultiplexer
A cost-effective wavelength division multiplexer and demultiplexer for use in optical communication consists of three modules, including a fiber array, a lens array and a filter array/reflector....
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6563980 |
Method and device for spectral level balancing in wavelength division multiplex multi-channel systems
WDM multi-channel systems for large distances having a number of intensifiers may cause an increase in intensifications, which lead to considerable differences in intensity, even given modest...
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6561701 |
Packaging and sealing of multi-port fiber optic device
A fiber optic assembly includes a multi-port fiber optic device ( 100 ) with a buffer ( 200 ) circumferentially mounted thereon. A metallic foil ( 300 ) with the sealant ( 400 )coated thereon,...
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6563983 |
Laser diode module
In a laser diode module of the invention, a coupling optical system is inclined in an xz plane with respect to an optical axis (z axis) of outgoing light of a laser diode. More specifically, a...
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6560378 |
Compact polarization couplers
The present invention, generally speaking, provides compact design of optical couplers for combining two differently polarized light beams onto a collimator or splitting a composed light beam into...
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6560015 |
High-isolation dense wavelength division multiplexer utilizing birefringent plates and a non-linear interferometer
The present invention provides a dense wavelength division multiplexer for separating an optical signal into optical channels. The dense wavelength division multiplexer includes at least one...
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6560379 |
Variable optical filter unit and variable gain equalizing system
Between a lens of a collimator and a retro-reflector as a total reflecting element, a prism, a polarizer, a Faraday rotator and a linear retarder are arranged in the order. The core/clad section...
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6558048 |
LD module
An LD module having a spot-size conversion LD for emitting a beam of a small aperture angle, an optical fiber or a waveguide and a lens for converging the LD beam to the fiber or the waveguide.
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6556747 |
Chemical mill method and structure formed thereby
The present invention consists of a method and a structure formed by such method relating to optical fibers. Specifically, the invention consists of a chemical mill process for shaping the end of a...
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6556320 |
Tunable chromatic dispersion, dispersion slope, and polarization mode dispersion compensator utilizing a virtually imaged phased array
The present invention provides a dispersion compensator which utilizes a Virtually Imaged Phased Array (VIPA), gratings, and birefringent wedges to moderate chromatic dispersion, dispersion slope...
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6550984 |
Integrated optical component with photodetector for automated manufacturing platform
An apparatus for retaining optical components in a planar configuration has a lens and an electro-optic component. The lens is optically coupled to the optical components. The electro-optic...
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6549703 |
High bandwidth, compact N×N optical switch
Electrostatic levitation and positioning of a charged, spherical micro-lens to steer an optical beam from a transmit fiber to a receive lens/fiber pair. Bundled arrays of N fibers and lenses...
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6549692 |
Optical monitoring of the angular position of micro mirrors in an optical switch
The position of a micro-mirror, for example, in an optical switch, may be monitored using an optical position control signals that are detected by a detector arrangement. The position of the...
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6549704 |
Fabrication of microlensed fiber using doped silicon dioxide
A method of making a microlensed fiber by splicing a doped silica rod to an optical fiber and shaping the end of the doped silica rod into a plano-convex refracting lens. The doped silica rod has a...
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6546169 |
Pump couplers for double-clad fiber devices
Techniques and devices that optically couple multiple pump fibers and a signal input fiber to a double-clad fiber with a high coupling efficiency.
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6546166 |
Multi-stage optical DWDM channel group interleaver
An optical fiber structure for demultiplexing/multiplexing includes a coupler which splits an incoming signal with multiple channels into two substantially identical signals that are respectively...
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6542664 |
Method for efficient coupling of laser beams into waveguides
An improved highly doped waveguide is provided which comprises a waveguide employing an Er dopant and Pr sensitizer ions. The present invention also provides a method of efficient coupling from an...
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6539143 |
Optical switching system
An optical switching device routes optical signals, completely within optical media, from an arbitrary number of N input optical fibers to a different set of M output optical fibers. The switching...
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6536959 |
Coupling configuration for connecting an optical fiber to an optoelectronic component
A coupling configuration for connecting an optical fiber provided with a coupling end face at one end to an optoelectronic element is described. A coupling element is disposed between the end of...
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6539145 |
Module for multiplexing and/or demultiplexing optical signals
The invention relates to a module for multiplexing and/or demultiplexing optical signals, having at least one wavelength-selective filter for multiplexing or demultiplexing into the module optical...
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6536957 |
Integrated optical transceiver array
An optical transceiver assembly comprises a plurality of optical signal sources for providing downstream signals and a plurality of photodetectors for detecting upstream signals. An optical module...
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6535668 |
Retro-reflective multi-port filter device with triple-fiber ferrule
A retro-reflective multi-port fiber optic device includes the triple-fiber ferrule with a GRIN rod lens to couple the light. The triple-fiber ferrule with three fibers thereof is attached to the...
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6532318 |
Symmetric wavelength selective switch for interconnecting two WDM rings
A symmetric optical switch for selectively switching wavelength channels between four optical inputs. The symmetric optical switch includes two dispersive elements receiving optical inputs from...
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6532244 |
Method and apparatus for providing a uniform beam from a laser-light-source
An illumination system includes a multimode diode-laser and two optical fibers. Light from the diode-laser is directed into the first optical fiber having a first core diameter. The light exits the...
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6529657 |
Angle selective side-pumping of fiber amplifiers and lasers
A method and apparatus of coupling pump light from an extended source to an optical waveguide is disclosed. The coupling is preferably achieved through the use of a v-groove in the optical...
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6529673 |
Manual variable optical attenuator and method
An optical variable attenuator having a reflector in a first position, and a mechanical device for positioning the reflector from the first position to a second position is disclosed. The optical...
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6529535 |
Laser diode module
There is provided a semiconductor laser device capable of increasing the optical output. The semiconductor laser module comprises a semiconductor laser device ( 1 ), an optical fiber ( 2 ) that...
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6529325 |
Polarization based optical splitter/combiner
A compact inline fiber optic polarization splitter/combiner for use in fiber optic communications. The splitter/combiner uses two birefringent wedges aligned with their optical axis at 90° from...
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6526201 |
Light transport coupler assembly
A light emitting diode, LED, to fiber optic cable coupler assembly for use in data communications is disclosed. An integral aspheric lens comprises a base and a dome, both of which are circumvented...
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6526190 |
Position measuring system
A position measuring system that includes a graduation support having a measuring graduation, a planar waveguide and a light source that generates light that is conducted to the measuring...
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6526205 |
Method and apparatus for the passive alignment of optical components
A method and structure of the present invention provides alignment between a first optical alignment component and a second optical alignment component. The first optical alignment component...
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6522796 |
Depolarizing polarization mode combiner
A pump source for a fiber Raman amplifier uses multiple lasers to generate high pump power or to generate a pump beam having a tailored spectrum for producing a desired Raman gain spectral profile....
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6519387 |
Image recording device and optical fiber
An image recording device and an optical fiber are provided which can obtain scanned beam spots having configurations which extend in an elongated manner in a subscanning direction and which are...
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6519063 |
Planar wave length multiplexer/demultiplexer
The present invention relates to a planar wave guide structure having a grating element fabricated thereon as well as a focusing element therein. The lens element of the present disclosure is...
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6512863 |
Scalable optical switch
A scalable optical switching device comprising: (a) an input optical fiber; (b) a plurality of output optical fibers; (c) a rigid concave spherical mirror; and (d) at least one planar refractive...
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6512868 |
Precision fiber optic collimator
A mechanism for reducing radial offset in a collimnated optical beam associated with an angled end fiber and minimizing an angular offset caused by collimator lens centration errors is presented....
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6510265 |
High-speed multi mode fiber optic link
A method and apparatus for overcoming modal noise penalties associated with multi-mode fiber optic links operating at high data rates on the order of 10 Gb/s. The method involves restricting the...
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6510262 |
Optical systems for Z-axis alignment of fiber, lens and source arrays
An optical coupling system includes a unitary separation-setting member for establishing precise spatial relationships among a microlens array, an array of light sources, and an array of optical...
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