Inventor · disambiguated record
Ashish Madhukar Vengsarkar
Also filed as: VENGSARKAR ASHISH · VENGSARKAR ASHISH M · VENGSARKAR ASHISH MADHUKAR
35 granted patents·2,465 citations·filing 1991–1998
98Inventor score
Top patents by PatentIndex Score
35 records- 0199US5802236AArticle comprising a micro-structured optical fiber, and method of making such fiberLUCENT TECHNOLOGIES INC·Filed 1997·Granted Sep 1, 1998·571 cites·20 claims
- 0298US5301001AExtrinsic fiber optic displacement sensors and displacement sensing systemsINNOVATIVE TECH CENTER·Filed 1992·Granted Apr 5, 1994·207 cites·13 claims
- 0395US5448674AArticle comprising a dispersion-compensating optical waveguideAT & T CORP·Filed 1994·Granted Sep 5, 1995·144 cites·18 claims
- 0494US5999671ATunable long-period optical grating device and optical systems employing sameLUCENT TECHNOLOGIES INC·Filed 1997·Granted Dec 7, 1999·146 cites·22 claims
- 0593US5641956AOptical waveguide sensor arrangement having guided modes-non guided modes grating couplerF & S INC·Filed 1996·Granted Jun 24, 1997·170 cites·10 claims
- 0691US5430817AOptical systems and devices using long period spectral shaping devicesAT & T CORP·Filed 1994·Granted Jul 4, 1995·104 cites·6 claims
- 0790US5757540ALong-period fiber grating devices packaged for temperature stabilityLUCENT TECHNOLOGIES INC·Filed 1996·Granted May 26, 1998·88 cites·13 claims
- 0889US5708669AArticle comprising a cladding-pumped optical fiber laserLUCENT TECHNOLOGIES INC·Filed 1996·Granted Jan 13, 1998·81 cites·13 claims
- 0988US5381229ASapphire optical fiber interferometerINNOVATIVE TECH CENTER·Filed 1992·Granted Jan 10, 1995·81 cites·10 claims
- 1087US5703978ATemperature insensitive long-period fiber grating devicesLUCENT TECHNOLOGIES INC·Filed 1996·Granted Dec 30, 1997·83 cites·11 claims
- 1186US5478371AMethod for producing photoinduced bragg gratings by irradiating a hydrogenated glass body in a heated stateAT & T CORP·Filed 1994·Granted Dec 26, 1995·66 cites·9 claims
- 1284US5781673AWDM optical fiber communication system with improved dispersion compensationLUCENT TECHNOLOGIES INC·Filed 1997·Granted Jul 14, 1998·77 cites·10 claims
- 1383US5259046AArticle comprising an optical waveguide containing a fluorescent dopantAT & T BELL LAB·Filed 1992·Granted Nov 2, 1993·45 cites·10 claims
- 1481US5647039AOptical switching system and devices using a long period gratingLUCENT TECHNOLOGIES INC·Filed 1995·Granted Jul 8, 1997·61 cites·24 claims
- 1579US5208877AFiber optic grating-based weighted, two-mode fiber sensorsINNOVATIVE TECH CENTER·Filed 1991·Granted May 4, 1993·37 cites·4 claims
- 1677US5559907AMethod of controlling polarization properties of a photo-induced device in an optical waveguide and method of investigating structure of an optical waveguideLUCENT TECHNOLOGIES INC·Filed 1994·Granted Sep 24, 1996·31 cites·6 claims
- 1777US5224182ASpatially-weighted two-mode optical fiber sensorsVIRGINIA POLYTECHNIC INST·Filed 1991·Granted Jun 29, 1993·34 cites·5 claims
- 1875US6011886ARecoatable temperature-insensitive long-period gratingsLUCENT TECHNOLOGIES INC·Filed 1997·Granted Jan 4, 2000·42 cites·19 claims
- 1975US5802234ADispersion compensating optical fiber, and communication system comprising sameLUCENT TECHNOLOGIES INC·Filed 1997·Granted Sep 1, 1998·44 cites·8 claims
- 2072US5907647ALong-period grating switches and devices using themLUCENT TECHNOLOGIES INC·Filed 1997·Granted May 25, 1999·37 cites·15 claims
- 2169US5764829AOptical signal shaping device for complex spectral shaping applicationsLUCENT TECHNOLOGIES INC·Filed 1996·Granted Jun 9, 1998·35 cites·24 claims
- 2269US5721796AOptical fiber cross connect with active routing for wavelength multiplexing and demultiplexingLUCENT TECHNOLOGIES INC·Filed 1996·Granted Feb 24, 1998·37 cites·7 claims
- 2369US5473714AOptical fiber system using tapered fiber devicesAT & T CORP·Filed 1994·Granted Dec 5, 1995·30 cites·10 claims
- 2467US5502786AMethod of forming photo-induced device and productAT & T CORP·Filed 1995·Granted Mar 26, 1996·22 cites·6 claims
- 2564US5717798AOptical waveguide system comprising a mode coupling grating and a mode discrimination couplerLUCENT TECHNOLOGIES INC·Filed 1996·Granted Feb 10, 1998·27 cites·13 claims
- 2663US5416863AMode-field transforming optical waveguideAT & T CORP·Filed 1993·Granted May 16, 1995·24 cites·8 claims
- 2762US5550940AOptical tapping filters employing long period gratingsLUCENT TECHNOLOGIES INC·Filed 1995·Granted Aug 27, 1996·24 cites·6 claims
- 2860US5828802ASelf-tuning optical waveguide filterLUCENT TECHNOLOGIES INC·Filed 1997·Granted Oct 27, 1998·28 cites·7 claims
- 2958US5668821AOptical systems and devices employing spectrally flattened amplified spontaneous emissionLUCENT TECHNOLOGIES INC·Filed 1996·Granted Sep 16, 1997·21 cites·8 claims
- 3053US5953471AOptical communication system having short period reflective Bragg gratingsLUCENT TECHNOLOGIES INC·Filed 1997·Granted Sep 14, 1999·16 cites·5 claims
- 3148US6050109AMethod for making long-period fiber gratingsLUCENT TECHNOLOGIES INC·Filed 1996·Granted Apr 18, 2000·14 cites·7 claims
- 3246US5528716AMethod of determining and investigating the physical structure of a light guiding bodyAT & T CORP·Filed 1995·Granted Jun 18, 1996·8 cites·14 claims
- 3344US6084996ABroadband long-period gratingsLUCENT TECHNOLOGIES INC·Filed 1998·Granted Jul 4, 2000·10 cites·13 claims
- 3444US6078709AMethod and apparatus for monitoring multi-wavelength optical systemsLUCENT TECHNOLOGIES INC·Filed 1997·Granted Jun 20, 2000·13 cites·27 claims
- 3543US5550948AMethod of determining changes in the refractive index of an optical waveguideLUCENT TECHNOLOGIES INC·Filed 1995·Granted Aug 27, 1996·7 cites·3 claims
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