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Ashish M. Vengsarkar
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Allentown, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Broadband long-period gratings
Patent number
6,084,996
Issue date
Jul 4, 2000
Lucent Technologies, Inc.
Justin Boyd Judkins
G02 - OPTICS
Information
Patent Grant
Method and apparatus for monitoring multi-wavelength optical systems
Patent number
6,078,709
Issue date
Jun 20, 2000
Lucent Technologies Inc.
Anatoli A. Abramov
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for making long-period fiber gratings
Patent number
6,050,109
Issue date
Apr 18, 2000
Lucent Technologies Inc.
Sandra Greenberg Kosinski
G02 - OPTICS
Information
Patent Grant
Recoatable temperature-insensitive long-period gratings
Patent number
6,011,886
Issue date
Jan 4, 2000
Lucent Technologies Inc.
Anatoli A. Abramov
G02 - OPTICS
Information
Patent Grant
Tunable long-period optical grating device and optical systems empl...
Patent number
5,999,671
Issue date
Dec 7, 1999
Lucent Technologies Inc.
Sungho Jin
G02 - OPTICS
Information
Patent Grant
Optical communication system having short period reflective Bragg g...
Patent number
5,953,471
Issue date
Sep 14, 1999
Lucent Technologies, Inc.
Rolando Patricio Espindola
G02 - OPTICS
Information
Patent Grant
Long-period grating switches and devices using them
Patent number
5,907,647
Issue date
May 25, 1999
Lucent Technologies Inc.
Benjamin John Eggleton
G02 - OPTICS
Information
Patent Grant
Self-tuning optical waveguide filter
Patent number
5,828,802
Issue date
Oct 27, 1998
Lucent Technologies, Inc.
Rogers Hall Stolen
G02 - OPTICS
Information
Patent Grant
Dispersion compensating optical fiber, and communication system com...
Patent number
5,802,234
Issue date
Sep 1, 1998
Lucent Technologies, Inc.
Ashish Madhukar Vengsarkar
G02 - OPTICS
Information
Patent Grant
Article comprising a micro-structured optical fiber, and method of...
Patent number
5,802,236
Issue date
Sep 1, 1998
Lucent Technologies Inc.
David John DiGiovanni
B82 - NANO-TECHNOLOGY
Information
Patent Grant
WDM optical fiber communication system with improved dispersion com...
Patent number
5,781,673
Issue date
Jul 14, 1998
Lucent Technologies Inc.
William Alfred Reed
G02 - OPTICS
Information
Patent Grant
Optical signal shaping device for complex spectral shaping applicat...
Patent number
5,764,829
Issue date
Jun 9, 1998
Lucent Technologies Inc.
Justin Boyd Judkins
G02 - OPTICS
Information
Patent Grant
Long-period fiber grating devices packaged for temperature stability
Patent number
5,757,540
Issue date
May 26, 1998
Lucent Technologies Inc.
Justin Boyd Judkins
G02 - OPTICS
Information
Patent Grant
Optical fiber cross connect with active routing for wavelength mult...
Patent number
5,721,796
Issue date
Feb 24, 1998
Lucent Technologies Inc.
Miriam R. de Barros
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical waveguide system comprising a mode coupling grating and a m...
Patent number
5,717,798
Issue date
Feb 10, 1998
Lucent Technologies Inc.
Thomas A. Strasser
G02 - OPTICS
Information
Patent Grant
Article comprising a cladding-pumped optical fiber laser
Patent number
5,708,669
Issue date
Jan 13, 1998
Lucent Technologies Inc.
David John DiGiovanni
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Temperature insensitive long-period fiber grating devices
Patent number
5,703,978
Issue date
Dec 30, 1997
Lucent Technologies Inc.
David John DiGiovanni
G02 - OPTICS
Information
Patent Grant
Optical systems and devices employing spectrally flattened amplifie...
Patent number
5,668,821
Issue date
Sep 16, 1997
Lucent Technologies Inc.
Craig W. Hodgson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical switching system and devices using a long period grating
Patent number
5,647,039
Issue date
Jul 8, 1997
Lucent Technologies Inc.
Justin Boyd Judkins
G02 - OPTICS
Information
Patent Grant
Optical waveguide sensor arrangement having guided modes-non guided...
Patent number
5,641,956
Issue date
Jun 24, 1997
F&S, Inc.
Ashish M. Vengsarkar
G02 - OPTICS
Information
Patent Grant
Method of controlling polarization properties of a photo-induced de...
Patent number
5,559,907
Issue date
Sep 24, 1996
Lucent Technologies Inc.
Daryl Inniss
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method of determining changes in the refractive index of an optical...
Patent number
5,550,948
Issue date
Aug 27, 1996
Lucent Technologies Inc.
Daryl Inniss
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical tapping filters employing long period gratings
Patent number
5,550,940
Issue date
Aug 27, 1996
Lucent Technologies Inc.
Ashish M. Vengsarkar
G02 - OPTICS
Information
Patent Grant
Method of determining and investigating the physical structure of a...
Patent number
5,528,716
Issue date
Jun 18, 1996
AT&T Corp.
Daryl Inniss
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method of forming photo-induced device and product
Patent number
5,502,786
Issue date
Mar 26, 1996
AT&T Corp.
Daryl Inniss
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method for producing photoinduced bragg gratings by irradiating a h...
Patent number
5,478,371
Issue date
Dec 26, 1995
AT&T Corp.
Paul J. Lemaire
G02 - OPTICS
Information
Patent Grant
Optical fiber system using tapered fiber devices
Patent number
5,473,714
Issue date
Dec 5, 1995
AT&T Corp.
Ashish M. Vengsarkar
G02 - OPTICS
Information
Patent Grant
Article comprising a dispersion-compensating optical waveguide
Patent number
5,448,674
Issue date
Sep 5, 1995
AT&T Corp.
Ashish M. Vengsarkar
G02 - OPTICS
Information
Patent Grant
Optical systems and devices using long period spectral shaping devices
Patent number
5,430,817
Issue date
Jul 4, 1995
AT&T Corp.
Ashish M. Vengsarkar
G02 - OPTICS
Information
Patent Grant
Mode-field transforming optical waveguide
Patent number
5,416,863
Issue date
May 16, 1995
AT&T Corp.
Ashish M. Vengsarkar
G02 - OPTICS