Inventor
EPWORTH RICHARD EDWARD
GB17 patents
⚠️ This page may combine multiple inventors who share the name “EPWORTH RICHARD EDWARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTEL NETWORKS LTD
9 patentsUS6271952B1Aug 7, 2001
Polarization mode dispersion compensation
NORTEL NETWORKS LTD328 citations98
US6313932B1Nov 6, 2001
Multiplexed transmission of optical signals
NORTEL NETWORKS LTD44 citations94
US6522436B2Feb 18, 2003
Multiplexed transmission of optical signals
NORTEL NETWORKS LTD31 citations91
US6483632B1Nov 19, 2002
Multistage optical amplifier with gain flattening
NORTEL NETWORKS LTD37 citations91
US6483620B1Nov 19, 2002
Polarization mode dispersion measurement
NORTEL NETWORKS LTD28 citations90
US6559991B1May 6, 2003
Polarization mode dispersion compensation
NORTEL NETWORKS LTD31 citations86
US6400496B1Jun 4, 2002
Optically amplified WDM transmission system
NORTEL NETWORKS LTD7 citations73
US6515778B1Feb 4, 2003
Polarization mode dispersion compensation
NORTEL NETWORKS LTD8 citations71
US6894829B2May 17, 2005
Optical amplifier modules
NORTEL NETWORKS LTD4 citations61
NORTHERN TELECOM LTD
5 patentsUS5949560ASep 7, 1999
Optical transmission system
NORTHERN TELECOM LTD115 citations96
US5828689AOct 27, 1998
Etalon arrangement
NORTHERN TELECOM LTD37 citations92
US5715265AFeb 3, 1998
Dispersion compensation
NORTHERN TELECOM LTD43 citations92
US5828681AOct 27, 1998
Wavelength control of data-modulated lasers and method using same
NORTHERN TELECOM LTD14 citations73
US5737459AApr 7, 1998
Loss interferometric power combiner comprising a feedback circuit
NORTHERN TELECOM LTD11 citations73