U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5687752

Dining Table Having Integral Dishwasher

A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 359/337 - Correction of deleterious effects


Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein an amplifier is corrected to overcome
No. of patents: 732
Last issue date: 05/29/2012


1                      
NumberTitleIssue Date
8189256Gain equalizer, optical amplifier, loss compensation method, and optical amplification method
A gain equalizer for compensation a variation of intensity among a plurality of optical signals each including a different wavelength in a wavelength multiplexed optical signal includes an input part for receiving the wavelength multiplexed optical signal, an output...
05/29/2012
8107160Light output control apparatus
A light output control apparatus, includes: an excitation light source that outputs excitation light; an excitation light guiding unit that guides the excitation light to an optical amplifying medium for transmitti...
01/31/2012
8054539Optical system for reducing stimulated Brillouin scattering by controllably changing polarization direction of an optical signal
An optical system having an input surface configured to receive an input optical signal having a polarization, and a polarization changer comprising the input surface and configured to generate two orthogonal polarization components from the input optical signal. Th...
11/08/2011
7738165Amplified spontaneous emission reflector-based gain-clamped fiber amplifier
Provided is an all-optical gain-clamped fiber amplifier, comprising transmission and isolation means for periodically transmitting an optical signal or reflecting amplified spontaneous emission (ASE) back to a gain medium. The transmission and isolation means can be...
06/15/2010
7733561Suppression of stimulated Brillouin scattering (SBS) in high power fiber amplifiers
A fiber amplifier suitable for high power, narrow linewidth applications exhibits suppression of stimulated Brillouin scattering (SBS) by segmenting the fiber amplifier into separate portions that exhibit different Brillouin center frequencies. By changing the cente...
06/08/2010
7688498Optical amplifier and optical monitor circuit
An optical amplifier of the present invention comprises: an optical amplifying circuit which amplifies a signal light; an optical reflection medium which is disposed on an optical fiber connected to the optical amplifying circuit and is capable of reflecting a noise...
03/30/2010
7663801Managing gain tilt in an optically amplified transmission system
A method of managing gain tilt in an optical transmission segment including providing an optical transmission segment having a plurality of fiber optic cable spans and a plurality of repeaters coupled to the fiber optic cable spans. Gain tilt in the optical transmis...
02/16/2010
7626758Method and apparatus for controlling and protecting pulsed high power fiber amplifier systems
An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pul...
12/01/2009
7583432Amplified optical ring transmission system
A ringed optical transmission system comprises along the ring rare earth doped fiber amplifiers. The system has a gain peak with a λASE wavelength outside the λ1-λn band of the channels transmitted along the ring, the wavelength c...
09/01/2009
7437083Wavelength converter
A wavelength converter for binary optical signals includes an interferometer structure (110) for generating an output signal by modulating a received local signal (LS) according to the modulation of a fUrther received first input signal (IS 1). When su...
10/14/2008
7437070Submarine observation apparatus and submarine observation system
In each of a plurality of submarine observation apparatus (1 to n), a branching unit (63) branches fixed-wavelength light (λ1) from an incoming wavelength-multiplexed light signal. An observation signal modulating unit (64) modulates the...
10/14/2008
7433117Polarization-diverse optical amplification
A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a ...
10/07/2008
7423804Spectrally resolved fast monitor
A method and apparatus for monitoring spectral tilt uses an arrayed waveguide grating (AWG) to separate a multiplexed optical signal having a plurality of wavelength channels into a plurality of sub-bands, where each sub-band spans a different wavelength range and i...
09/09/2008
7417791Optical amplifier for amplifying multi-wavelength light
Multi-wavelength light is inputted to an erbium-doped fiber as an optical amplification medium. Pump light is supplied to this erbium-doped fiber. When a transition from a state signal light on the short wavelength area in the multi-wavelength is input in the erbium...
08/26/2008
7414780All-fiber chirped pulse amplification systems
By compensating polarization mode-dispersion as well chromatic dispersion in photonic crystal fiber pulse compressors, high pulse energies can be obtained from all-fiber chirped pulse amplification systems. By inducing third-order dispersion in fiber amplifiers via ...
08/19/2008
7394590Control device and control method of optical amplifier
There are provided an ASE correction unit which corrects control errors regarding either or both of the gain and the output level of the optical amplifier, which control errors are generated due to the ASE, and an ASE correction controller which controls the correct...
07/01/2008
7394995System and method for a compact optical receiver with wide dynamic range
An optical receiver is disclosed comprising an erbium-doped fiber amplifier (EDFA) that is coupled to a photodiode and transimpedance amplifier without filtering output light signal in the EDFA. Optionally, a clock/data regenerator can be coupled to the electrical o...
07/01/2008
7379234Quality monitoring of an optical fiber amplifier
A method is described for detecting aging effects in components of an optical fiber amplifier wherein a broadband signal is amplified by means of a pump source in conjunction with at least one amplifying fiber. Input and output powers or, as the case may be, photon ...
05/27/2008
7379637Method, optical device, and system for optical fiber transmission
The present invention relates to a method for optical fiber transmission which can increase a transmission distance. A first optical fiber having dispersion is first provided. An optical signal is next supplied to the first optical fiber so that the optical signal i...
05/27/2008
7371966High speed active flex cable link
A method and apparatus, in some embodiments the apparatus includes a flex cable terminating at a first end and a second end and having a plurality of conductors therein, and a repeater circuit disposed between the first end and the second end and connected to at lea...
05/13/2008
7369300Optical amplifier pre-emphasis and equalization method and optical communications system incorporating same
The present invention provides an optical amplifier pre-emphasis and equalization method that alleviates the optical amplifier gain ripple penalty experienced in conventional optical communications systems. This method includes storing measured communications channe...
05/06/2008
7369777Method and apparatus for automatically adjusting the optical power directed to a dispersion compensating element
A dispersion compensator is provided that includes an input port 102 for receiving a WDM optical signal and a dispersion compensating element 110 coupled to the input port for substantially compensating the WDM optical signal for dispersion that has ac...
05/06/2008
7369780Remodulating channel selectors for WDM optical communication systems
The present invention provides a remodulating channel selector for a wavelength division multiplexed optical communication system. The remodulating selector receives a WDM input signal, selects a particular optical channel from the WDM signal and places the informat...
05/06/2008
7366209Orthogonal polarization multiplexing transmission apparatus and multiplexing method used for the same
An orthogonal polarization multiplexing transmission apparatus capable of performing dispersion compensation considering a short wavelength side and a long wavelength side of a zero dispersion wavelength. A plurality of light signals of different wavelengths are div...
04/29/2008
7362939Optical fiber for long period grating, long period grating component and manufacturing method of the same
This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said cor...
04/22/2008
7362925Control method and control apparatus of optical device
The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a ...
04/22/2008
7362498Method and apparatus for controlling a semiconductor optical amplifier for use in a passive optical network
An optical amplifier including: an amplifier having an input port and an output port, which is disposed along a main signal line of the optical amplifier; a dummy laser generation circuit having an output coupled to the main signal line and operative for inputting a...
04/22/2008
7355785Gain-clamped semiconductor optical amplifier
A gain-clamped semiconductor optical amplifier is disclosed. The amplifier includes a gain waveguide for amplifying an optical signal input to the gain waveguide, and a grating layer, in contact with the gain waveguide, having a first grating disposed at a first end...
04/08/2008
7356062Semiconductor laser with reduced heat loss
A semiconductor laser having a semiconductor chip (1) which contains an active layer (5) and emits radiation in a main radiating direction (6). The active layer (5) is structured in a direction perpendicular to the main radiating directio...
04/08/2008
7352970Dispersion management system for soliton optical transmission system
A dispersion management system for soliton or soliton-like transmission systems comprises a length of optical fiber (L) in which a plurality of sections (I) made up of components (N,A) of opposite sign dispersions are concatenated together. The duration of the dispe...
04/01/2008
7343097Optical transmission systems including optical amplifiers and methods of use therein
Optical transmission systems including a plurality of optical amplifiers configured to provide optical amplification of one or more information carrying optical signal wavelengths. At least two of the optical amplifiers are operated to provide net losses or net gain...
03/11/2008
7342711Method and contrivance for applying a Raman amplification in a transmission and/or fibre device
Raman amplification is used in optical transmission systems, devices and/or components way of for applying Raman amplification avoiding or suppressing detrimental and hence undesirable non-linear effects is provided. Raman amplification in an optical device is provi...
03/11/2008
7340133Configurable dispersion compensation trimmer
The invention pertains to optical fiber transmission systems, and is particularly relevant to transmission of large volumes of data over long distances at high rates. An improved apparatus achieving precise dispersion compensation in a fiber span is disclosed. In pa...
03/04/2008
7336414Optical modulating device
An optical modulation apparatus is provided which implements a stable amplifying function by reducing the effect of reflected light rays form end faces of a bidirectional optical amplifier by imposing a numerical limitation on the relationship between the gain of th...
02/26/2008
7336870Optical transmission system
An optical transmission system includes a first/second node with a first/second dispersion compensator that performs a first/second dispersion compensation on an optical signal; and a third node that is arranged between the first/second nodes. The amounts of the fir...
02/26/2008
7331722Optical module for housing an optical component
An optical module for housing an optical component to which optical fibers are to be connected, the optical module comprises a casing; at least two round fiber guides which are arranged within the casing, spaced at a distant from each other and around which the opti...
02/19/2008
7331697LED lighting system with helical fiber filament
A lighting system includes a helical light-transmitting fiber and a light source. The helical light-transmitting fiber is doped with a first wavelength converting material and defines a helical axis. The light source is aligned axially with the helical fiber such th...
02/19/2008
7330651Optical amplifying apparatus, optical transmission system and method of adjusting optical transmission loss
An optical amplifying apparatus connected mutually through an optical transmission line includes an optical detecting unit for detecting an input level of an amplified spontaneous emission (ASE) light, an optical amplifying unit for amplifying a signal light, and an...
02/12/2008
7327954Optical signaling to share active channel information
A method for optical supervisory signaling includes determining a wavelength channel status (WCS) value, a wavelength channel failure (WCF) value, and a wavelength channel lit (WCL) value for each one of multiple data channels services by an optical communication no...
02/05/2008
7327958Transient-based channel growth for optical transmission systems
A channel-growth plan for an optical transmission system selects channels such that the transients that result in the channels that survive a network failure, such as an upstream fiber cut, are either minimized or effectively handled by some transient-control techni...
02/05/2008
1                      
 
Sign InRegister
Username  
Password   
forgot password?