Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7768699 | Laser phase difference detecting device and laser phase control device A phase difference detecting device includes a splitter for splitting laser beams into a first group which will travel along a first path and a second group which will travel along a second path, a beam selection/extraction unit for selecting, as reference light, on... | 08/03/2010 |
| 7339727 | Method and system for diffractive beam combining using DOE combiner with passive phase control A system and method for combining plural low power light beams into a coherent high power light beam. Optical amplifiers transmit a plurality of light beams propagating at a common wavelength through an array of optical fiber emitters. Each constituent beam is emitt... | 03/04/2008 |
| 7062110 | Sensor device The present invention relates to a sensor device and method for measuring a property associated with the introduction of or changes in a chemical, biological or physical stimulus in a localized environment, in particular to a sensor device and method for measuring t... | 06/13/2006 |
| 7031050 | Method and system for precision cross-talk cancellation in optical amplifiers The invention provides improved methods and systems for a precise and selective cross-talk cancellation and pilot tones deletion in optical amplifiers. The method for cancellation of cross-talk among multiple channels occurring in a traditional optical amplifier com... | 04/18/2006 |
| 7016096 | Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using same An object of the invention is to easily realize an optical element using an etalon type structure, capable of changing a periodic transmission wavelength characteristic in an axial direction of transmissivity, and also capable of changing a periodic characteristic w... | 03/21/2006 |
| 7006725 | High extinction ratio fiber interferometer A high extinction ratio interferometer is disclosed. The interferometer includes a first and second optical fiber each having a first end and a reflective end and an optical coupler for coupling the first optical fiber and the second optical fiber between their firs... | 02/28/2006 |
| 6893721 | Process for the reduction of undesirable outgassing species A method to reduce undesirable outgassing includes bonding at least two optical components with a bonding material and encapsulating the bonding material with a capping material. The capping material inhibits the outgassing of species that would otherwise be emitted... | 05/17/2005 |
| 6646789 | Single parameter gain slope adjuster for an optical system An optical device comprises an optical amplifier to amplify optical signals, optical pumps coupled to and providing optical pump power to least one amplifying stage of the optical amplifier, so as to produce gain in the said optical amplifier and, a tunab... | 11/11/2003 |
| 6611371 | Single parameter gain slope adjuster for an optical system An optical device including an optical amplifier to amplify optical signals received through an optical input, and to supply the amplified optical signals from an optical output, and an optical filter coupled to the optical amplifier. The optical filter c... | 08/26/2003 |
| 6498676 | Optical filter for use or with an optical amplifier This invention relates to invention relates to a method for filtering and a variable slope optical filter for in-line use with an optical amplifier signal. The filter has a wavelength response that is substantially linear in slope within a band of operati... | 12/24/2002 |
| 6275328 | Amplifier control A method and apparatus for determining control signals of a filter for optimization of the gain profile of an amplifier, particularly though not exclusively for use in optical communications systems, and a system incorporating the same. The method is for ... | 08/14/2001 |
| 6268954 | Method and system for controlling the slope of an output response This invention relates to a method for filtering and to a variable slope optical filter for in-line use with an optical amplifier signal. The filter has a wavelength response that is substantially linear in slope within a band of operation wavelengths of ... | 07/31/2001 |
| 5808785 | Optical fiber amplifier and optical transmission system using the same A rare earth-doped optical fiber is supplied with a input signal light and an excitation light, so that the input signal light is amplified to be supplied to an output as an amplified signal light. At this time, an intensity of an amplification of spontan... | 09/15/1998 |
| 5706125 | Optical signal amplifying circuit A wide-band optical signal amplifying circuit having gain exhibiting less wavelength dependency for amplifying optical signal and analogue-modulated optical signal. The optical signal amplifying circuit includes one or a plurality of optical amplifiers fo... | 01/06/1998 |
| 5600473 | Optical amplifier systems with add/drop multiplexing The present invention relates to optical amplifier systems which include optical add/drop multiplexing capabilities. The optical amplifier system includes a first optical circulator with at least three circulator ports. An optical transmission fiber optic... | 02/04/1997 |
| 5436760 | Optical fiber amplifier with gain equalizing circuit An optical fiber amplifier includes an optical amplifying section having an Er-doped fiber. A gain equalizing section is provided at secondary stage of the optical amplifying section and has an optical filter unit for compensating for wavelength dependenc... | 07/25/1995 |
| 4742307 | Optical amplification device with noise filter function The invention relates to an optical amplification device (10) with noise filter function. A body, composed of a plurality of layers (11-15) of different materials has electrodes (16) on its opposing sides. A first (12) and a second (14) of these layers is... | 05/03/1988 |
