Assignee
EXFO ELECTRO OPTICAL ENG INC
CA·20 granted patents·516 citations·filing 1992–2007
Top patents by PatentIndex Score
20 records- 0195US7187861B2Method and apparatus for testing optical networksEXFO ELECTRO OPTICAL ENG INC·Filed 2004·Granted Mar 6, 2007·44 cites·29 claims
- 0295US5754284AOptical time domain reflectometer with internal reference reflectorEXFO ELECTRO OPTICAL ENG INC·Filed 1996·Granted May 19, 1998·108 cites·8 claims
- 0394US6724469B2Polarization-OTDR for measuring characteristics of optical fibersEXFO ELECTRO OPTICAL ENG INC·Filed 2003·Granted Apr 20, 2004·61 cites·18 claims
- 0484US6636306B2Optical spectrum analyzerEXFO ELECTRO OPTICAL ENG INC·Filed 2001·Granted Oct 21, 2003·31 cites·21 claims
- 0578US6204924B1Method and apparatus for measuring polarization mode dispersion of optical devicesEXFO ELECTRO OPTICAL ENG INC·Filed 1999·Granted Mar 20, 2001·56 cites·30 claims
- 0676US6762829B2Measurement of optical properties of passive optical devices using the matrix methodEXFO ELECTRO OPTICAL ENG INC·Filed 2003·Granted Jul 13, 2004·14 cites·22 claims
- 0774US7227645B2Method and apparatus for measuring polarization mode dispersionEXFO ELECTRO OPTICAL ENG INC·Filed 2003·Granted Jun 5, 2007·17 cites·6 claims
- 0873US6612750B1Adapter for interconnecting optical fiber connectorsEXFO ELECTRO OPTICAL ENG INC·Filed 1998·Granted Sep 2, 2003·60 cites·21 claims
- 0972US6856398B2Method of and apparatus for making wavelength-resolved polarimetric measurementsEXFO ELECTRO OPTICAL ENG INC·Filed 2002·Granted Feb 15, 2005·14 cites·8 claims
- 1071US6621067B2Polarization independent photodetector device and method of making sameEXFO ELECTRO OPTICAL ENG INC·Filed 2001·Granted Sep 16, 2003·17 cites·35 claims
- 1170US7426021B2Interferometric optical analyzer and method for measuring the linear response of an optical componentEXFO ELECTRO OPTICAL ENG INC·Filed 2005·Granted Sep 16, 2008·6 cites·33 claims
- 1269US5305078AMeasurement of attenuation of optical fibers using transmitted wavelength and power informationEXFO ELECTRO OPTICAL ENG INC·Filed 1992·Granted Apr 19, 1994·29 cites·6 claims
- 1367US7167655B2Measurement system for wide dynamic range optical power meterEXFO ELECTRO OPTICAL ENG INC·Filed 2003·Granted Jan 23, 2007·13 cites·14 claims
- 1467US7116848B2Optical spectrum analyzer using a diffraction grating and multi-pass opticsEXFO ELECTRO OPTICAL ENG INC·Filed 2004·Granted Oct 3, 2006·11 cites·22 claims
- 1566US7382810B2Widely-tunable laser apparatusEXFO ELECTRO OPTICAL ENG INC·Filed 2007·Granted Jun 3, 2008·2 cites·10 claims
- 1661US6429929B2Method and apparatus for measuring phase differences between intensity-modulated optical signalsEXFO ELECTRO OPTICAL ENG INC·Filed 2001·Granted Aug 6, 2002·9 cites·55 claims
- 1758US6819429B2Multi-pass optical spectrum analyzer having a polarization-dependent tunable filterEXFO ELECTRO OPTICAL ENG INC·Filed 2001·Granted Nov 16, 2004·7 cites·12 claims
- 1854US6992828B2Optical attentuator systemEXFO ELECTRO OPTICAL ENG INC·Filed 2002·Granted Jan 31, 2006·6 cites·15 claims
- 1951US6930776B2High optical rejection optical spectrum analyzer/monochromatorEXFO ELECTRO OPTICAL ENG INC·Filed 2003·Granted Aug 16, 2005·3 cites·17 claims
- 2049US7583727B2Single ended DMT test method for determining ADSL capability of cablesEXFO ELECTRO OPTICAL ENG INC·Filed 2002·Granted Sep 1, 2009·8 cites·12 claims
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