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7623788 Optical wavelength division multiplexing transmitter  
An optical transmitter for coupling and wavelength-multiplexing optical signals with a different wavelength has 3 or more light sources for emitting parallel optical signals with a different...
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...
7463828 Optical channel monitor  
An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the...
7444047 Multiplexing optical system  
A multiplexing optical system includes collimator lenses, a first condensing lens, a second condensing lens and an optical fiber. The collimator lenses collimate divergent laser beams that have...
7394986 Flat top optical filtering component  
The invention relates to wavelength-selective optical filters for allowing light of a narrow optical spectral band, centered around a wavelength (λ c ) to pass through them, while reflecting the...
7362931 Optical conversion device for shared FTTH distribution network  
An optical conversion device for a shared FTTH distribution network including first and second optical fibers and an optical processing circuit. The optical processing circuit has an input for...
7343094 Transmission characteristics evaluation system and pseudo transmission path apparatus thereof  
A transmission characteristics evaluation system can measure the dispersion tolerance and the insertion loss gradient tolerance at a high precision with reduced number of working steps for the...
7302181 Single lens multiple light source device  
An optical communication device having multiple light sources under a single lens. The optical communication device has two light sources. The optical communication device has a lens optically...
7292786 Method and system for a re-configurable optical multiplexer, de-multiplexer and optical add-drop multiplexer  
A system for a re-configurable optical de-multiplexer, multiplexer or add/drop multiplexer is provided. A re-configurable de-multiplexer system comprises a wavelength selective switch having an...
7280760 Upgradeable optical add/drop multiplexer  
An OADM includes optical input and output; first and second bandpass filters with a first pass band, optically coupled to the optical input and output, respectively; third and fourth bandpass...
7263291 Wavelength division multiplexing source using multifunctional filters  
This invention provides a system that combines a wavelength multiplexer with an FM discriminator for chirp reduction and wavelength locker in a filter to produce a wavelength division multiplexed...
7218813 Optical communication system  
An optical communication system has a plastic optical fiber (POF) and an optical communication module. The POF has a spherical end surface, and light emitted from the spherical end surface has an...
7215885 Wavelength division element and optical module  
A wavelength division element includes a first filter and a second filter. The first filter has incident angle-to-transmission wavelength characteristics and separates multiplexed lights in a...
7184669 Optical transceiver systems and methods  
Optical systems are provided. A representative optical system includes an optical transceiver with an optical source and an optical receiver. The system also includes an optical waveguide. At least...
7182528 Diffractive grating member and optical communication module  
The present invention relates to a diffractive grating member and to an optical communication module. The optical communication module includes a semiconductor laser; a coupling optical system for...
7171073 Structure and method for multi-ports optical apparatus  
The present invention describes a structure and method for a multi-ports WDM device for compensating the filter distortion while reducing insertion loss. The multi-ports WDM device comprises a...
7164859 Free-space dynamic wavelength routing systems with interleaved channels for enhanced performance  
A novel wavelength routing apparatus is disclosed, which uses a diffraction grating to separate a multi-wavelength optical signal from an input port into multiple spectral channels; a...
7126740 Multifunctional optical device having a spatial light modulator with an array of micromirrors  
A reconfigurable multifunctional optical device has an optical arrangement for receiving an optical signal, each having optical bands or channels, and a spatial light modulator for reflecting the...
7088885 System for modulating optical signals  
An optical signal production and modulation system that enables a multiplexed optical signal to be created for transmission without the use of more traditional laser-based optical transceivers. The...
7076132 Optical devices and methods  
A fiber optic device comprises an optical lens element having a focal length greater than 2 mm, and an optical signal source or receiver mounted at the focal plane of the optical lens element and...
7062174 Wavelength division multiplexing add-drop multiplexer using an optical tapped delay line  
An Optical Tapped Delay Line (OTDL) is combined with other known optical apparatuses to provide an add-drop multiplexer for a wavelength division multiplexing fiber optic network. Each output beam...
7046876 Interleaver for optical communication system  
Disclosed is an interleaver for an optical communication system. A dual collimator is combined with a first optical fiber acting as a light input port and one end of a second optical fiber spaced...
7031609 Optical add-drop multiplexer  
An optical add-drop multiplexer successively comprises a first ferrule, a first graded index (GRIN) lens with a bandpass filter attached thereon, an optical crystal, a second GRIN lens, and a...
7004645 VCSEL array configuration for a parallel WDM transmitter  
VCSEL array configurations for use with parallel WDM transmitters are disclosed. Transmitters that use several wavelengths of VCSELs are built up out of multiple die to avoid the difficulty of...
6985308 Telecommunications optical processor  
A demultiplexer for use in a wavelength-division multiplexed optical system including a first positive lens group, a negative lens group, and a second positive lens group in order from a dispersive...
6945711 Multiplexer with a dense wavelength division multiplexing function  
This invention relates to a multiplexer with a DWDM function, mainly comprising two modules, and an optic fiber is linked between said two modules, in which several filters and reflection mirrors,...
6941073 East-west separable ROADM  
An East-West separable ROADM particularly usable as a programmable N×M optical add/drop multiplexer with an efficient pass through of optical channels in a multi-wavelength communication system....
6941047 System and method for collimating and redirecting beams in a fiber optic system  
A connector to an optical fiber comprises a prism, a ferrule and an aspheric lens. The prism includes a triangular wedge element having a first surface, a second surface and a base. The ferrule...
6925212 Optical transmission apparatuses, methods, and systems  
Apparatuses, methods, and systems are disclosed for controlling optical signal wavelength spacing by providing for simultaneous upconversion of a plurality of electrical signal on subcarrier...
6909821 Network for distributing signals to a plurality of users  
A network for distributing signals to a plurality of user apparatuses having a distribution unit with a plurality of ports, and a plurality of optical-fiber cables connected to the ports and...
6907162 Optical module unit and optical module employing the optical module unit  
An optical module 31 is provided in which a wavelength division element 32 such as an optical multi-layer film or diffraction grating is united between the sides of lens blocks 3 of optical...
6871022 Cascaded optical multiplexer  
Methods and apparatus for multiplexing and demultiplexing optical signals. An interleaver having a modified Mach-Zehnder interferometer as a first stage is used as a wavelength division...
6868237 Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links  
Optical signals are received from a free-space link by directing received light onto a plurality of microlenses and then directing light received through each of the microlenses into a respective...
6854900 Method of fabricating a wavelength division multiplexed (WDM) unit  
A method of fabricating a WDM unit consists of attaching a first and a second GRIN lenses to opposite faces of a WDM filter. A dual fiber pigtail and a single fiber pigtail are mounted in...
6792211 Compact optical wavelength add/drop multiplexer  
Method and system for selectively adding and dropping selected wavelength components λ=λk 1 and λ=λk 2 (1≦k 1 ≦k 2 ≦K) in a light signal having a sequence of wavelengths λk (k=1, 2, ....
6788901 Method of forming optical radiation beams for free-space optical communication systems  
The inventive beam forming technique enables use of multimode optical fibers to couple a modulated optical beam from a radiation source to an optical emitting antenna, for free-space...
6778780 WDM utilizing grating-based channel separators  
The present invention provides an improved wavelength division multiplexer (WDM) which utilizes a grating-based channel separator. The WDM includes an interleaved channel separator; and at least...
6766081 Focal length dispersion compensation for field curvature  
An optical arrangement and method are provided for receiving a light beam having a plurality of spectral bands and directing subsets of the spectral bands along optical paths to respective optical...
6751422 Spatial light communication equipment comprising angle error detection and alignment units  
A spatial light communication equipment being capable of providing compatibility between two communication equipments placed opposite to each other and of providing, with simplified configurations,...
6748133 Compact multiplexing/demultiplexing modules  
Improved designs of optical multiplexing/demultiplexing module are disclosed for use in multiplexing a composite optical signal into respective individual channels or wavelengths or demultiplexing...
6690885 Optical crossconnect using tilting mirror MEMS array  
An optical crossconnect constructed of micro -electromechanical systems (MEMS) tilt mirror arrays for selectively routing optical signals to optic fibers. The crossconnect includes a lens array for...
6674939 Using fibers as delay elements in optical true-time delay devices based on the white cell  
The present invention provides for a delay unit for optically generating time delays in signals comprising: a delay entrance plane, the delay entrance plane comprising at least one row of signal...
6661944 Optical add/drop multiplexer  
An optical add/drop multiplexer capable of extracting signals from within a specified waveband in a group of signals containing various wavelengths, and then adding back a new set of signals also...
6654175 Integrated LED/photodiode collimator array  
The present invention relates to a collimator assembly for use in an optical switch. The collimator assembly includes an integrated LED/photodiode plane disposed in a dual microlens array. The...
6634810 Free-space multi-port wavelength router with broad wavelength passbands  
A free space multiport wavelength router for directing channels of a received WDM optic signal to a plurality of output ports. The inventive router includes a lens which receives an incoming WDM...
6609839 Device including a saturable absorber for regenerating a wavelength-division multiplex signal  
In a device for regenerating a wavelength-division multiplex optical signal, the optical signal to be regenerated comes from an optical fiber and is injected back into the same optical fiber or...
6611642 Optical coupling arrangement  
An optical coupler and method of making an optical filter is disclosed wherein a compound lens having two separate movable lenses are disposed between input/output ports and a filter element, such...
6597842 Optical interleaver with image transfer element  
An optical interleaver. The interleaver is based upon the Mach Zender interferometer. At least one of the optical paths joining opposed couplers of the arrangement includes an optical image...
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,...
6563987 Optical multiplexing/demultiplexing device with variable branching ratio and optical coupler with variable coupling ratio  
An optical multiplexing/demultiplexing device with variable branching ratio is disclosed. The device includes a first collimator lens assembly having a first collimator lens 14, and first and...
Matches 1 - 50 out of 93 1 2 >