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Different Sources

Different Sources patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Optical Communications


Multiplex > Wavelength Division Or Frequency Division (e.g., Raman, Brillouin, Etc.) > Different Sources



Optical signal processing apparatus, transmission apparatus, and optical signal processing method
08/21/14 - 20140233957 - An optical signal processing apparatus includes: an optical frequency comb generation unit configured to generate an optical frequency comb; an extraction unit configured to extract a plurality of optical components having a certain frequency interval between the optical components from the optical frequency comb; and an optical carrier generation unit...

Apparatus and methods for generating and receiving optical signals at substantially 100gb/s and beyond
01/30/14 - 20140029951 - A substantially 400 Gb/s optical transceiver includes a substantially 400 Gb/s optical transmitter which includes a set of four substantially 100 Gb/s tunable optical transmitters, each transmitting a substantially 100 Gb/s optical signal in a wavelength division multiplexed form over four channel wavelengths selected such that the resulting 16 channel...

System and method for optical transmission
12/26/13 - 20130343760 - A system and a method for optical transmission are provided. The system includes a power combiner, a laser light source, a negative chirp modulator, and multiple transmission units. Each transmission unit corresponds to a frequency band and generates a first output signal in the frequency band based on orthogonal frequency-division...

External cavity laser array system and wdm optical system including same
08/29/13 - 20130223844 - An external cavity laser array system may be used in a WDM optical system, such as a WDM-PON, for transmitting optical signals at multiple channel wavelengths. The system generally includes a plurality of laser emitters (e.g., gain chips) optically coupled to and separated from respective exit reflectors (e.g., tunable narrow-band...

Optical transmitter and optical communication system using resonance modulator that is thermally coupled
08/01/13 - 20130195463 - An optical transmitter for an optical communication system includes a light source that outputs optical signals having a plurality of wavelengths, and a wavelength control unit. The wavelength control unit receives an optical signal from the light source, resonates an optical signal having a first wavelength, modulates the optical signal...

Opto-electronic transceiver having housing with small form factor
02/14/13 - 20130039662 - An optical transceiver comprising: an optical transmitter having plurality of light sources controllable to generate optical signals in different optical channels, an output aperture, an optical multiplexer that multiplexes optical signals generated by the light sources and transmits them to exit the transceiver from the output aperture; an optical receiver...

Multiplexer and modulation arrangements for multi-carrier optical modems
10/04/12 - 20120251119 - Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication, and converted to analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the...

Multiplexer and modulation arrangements for multi-carrier optical modems
10/04/12 - 20120251120 - Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, and converted to an analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance...

Periodic superchannel carrier arrangement for optical communication systems
10/04/12 - 20120251121 - Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, is processed and then output to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data, forming a...

Method and apparatus for local optimization of an optical transmitter
07/05/12 - 20120170938 - Consistent with the present disclosure, an optical receiver is paired with an optical transmitter in a transceiver card or module, for example. During normal operation, the optical transmitter supplies optical signals for downstream transmission on a first optical communication path, and the optical receiver receives additional optical signals from a...

Coded light transmission and reception
06/28/12 - 20120163826 - Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. An assignment for the identification frequencies of light sources enables more unique frequencies to be assigned, i.e. more light sources to be uniquely identified in the system. An available frequency band is...

Wavelength multiplexing unit and wavelength multiplexing method of wavelength multiplexing optical transmission system
03/01/12 - 20120051750 - When using a wavelength multiplexing unit of a wavelength multiplexing optical transmission system in which a wavelength tunable type optical transmitter and a wavelength multiplexer having no wavelength selectivity are combined, undesired light that is not supposed to be flown into a wavelength channel may be mixed therein. A wavelength...

Cascased injection locking of fabry-perot laser for wave division modulated passive optical networks
04/21/11 - 20110091214 - An optical network unit (ONU) comprising a first optical fiber, a first optical circulator coupled to the first optical fiber, a first seed light injected laser coupled to the first optical circulator, wherein the first optical circulator is positioned between the first seed light injected laser and the first optical...

Multiwavelength transmitter
06/10/10 - 20100142962 - A multiwavelength transmitter comprises several laser sources (1) each configured to generate light of a different wavelength and a first array waveguide grating (2) arranged to direct light from each of the laser sources (1) into a first waveguide. The transmitter further comprises several electroabsorption modulators (7) each arranged to...

Method and device for digitising an electrical signal
03/04/10 - 20100054743 - A device for digitising an electrical signal comprising (A) at least two continuous wave lasers each being adapted to produce light at a different wavelength; (B) a dispersive optical chopper adapted to chop the output of each of the lasers into optical pulse trains, introduce a predetermined delay between each...

Integration of laser sources and detectors for a passive optical network
02/18/10 - 20100040374 - Various methods and apparatuses are described in which an array of optical gain mediums capable of lasing are contained in a single integral unit. The array may contain four or more optical gain mediums capable of lasing. Each optical gain medium capable of lasing supplies a separate optical signal containing...

Optical network element with brillouin effect colorless wavelength shift
08/06/09 - 20090196618 - A method of optical communication includes generating an amplified optical signal from at least a portion of a first optical signal having a first carrier wavelength, λ1. The amplified optical signal is applied to Brillouin media to stimulate generation of a Brillouin effect signal at a wavelength λ2. The Brillouin...

Optical transmitter/receiver module
04/23/09 - 20090103923 - An optical element mounting substrate where a plurality of light emitting elements have been mounted on the same plane, a lens array for collimating a plurality of light emitted from the plurality of light emitting elements, and a wavelength multiplexing/demultiplexing device are prepared. The wavelength multiplexing/demultiplexing device has typically mounted...

High power, optically-linearized microwave fiber optic link with suppression of fiber induced distortion
03/19/09 - 20090074419 - Techniques and system implementations for fiber optic transmission systems for suppressing fiber induced distortions and modulation-induced distortions as well as increasing the link power and RF gain....