Inventor
NAGEL JONATHAN A
US25 patents
⚠️ This page may combine multiple inventors who share the name “NAGEL JONATHAN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T CORP
11 patentsUS5430572AJul 4, 1995
High power, high gain, low noise, two-stage optical amplifier
AT & T CORP139 citations95
US5406404AApr 11, 1995
Method of mitigating gain peaking using a chain of fiber amplifiers
AT & T CORP64 citations95
US6768875B1Jul 27, 2004
Polarization mode dispersion compensation
AT & T CORP16 citations91
US5481399AJan 2, 1996
In-line two-stage erbium doped fiber amplifier system with in-band telemetry channel
AT & T CORP18 citations78
US5394265AFeb 28, 1995
In-line two-stage erbium doped fiber amplifier system with in-band telemetry channel
AT & T CORP18 citations78
US6980744B1Dec 27, 2005
Methods and systems for polarization mode dispersion compensation
AT & T CORP5 citations73
US6674972B1Jan 6, 2004
Methods and systems for polarization mode dispersion compensation
AT & T CORP11 citations73
US7295781B1Nov 13, 2007
Polarization mode dispersion compensation
AT & T CORP7 citations72
US7203423B1Apr 10, 2007
Methods and systems for polarization mode dispersion compensation
AT & T CORP4 citations62
US7466923B1Dec 16, 2008
Polarization mode dispersion compensation
AT & T CORP3 citations61
US7333728B1Feb 19, 2008
Methods and systems for polarization mode dispersion compensation
AT & T CORP1 citations51
TYCO TELECOMM US INC
3 patentsUS6690504B1Feb 10, 2004
System and method for controlling spectral distribution of output power in a Raman amplifier
TYCO TELECOMM US INC54 citations93
US6901190B1May 31, 2005
Fault tolerant optical amplifier configuration using pump feedthrough
TYCO TELECOMM US INC6 citations63
US6906854B1Jun 14, 2005
System and method for controlling noise in raman amplifiers
TYCO TELECOMM US INC4 citations59
RED SKY SYSTEMS INC
3 patentsUS6842586B2Jan 11, 2005
OTDR arrangement for detecting faults in an optical transmission system employing two pairs of unidirectional optical fibers
RED SKY SYSTEMS INC11 citations71
US6934442B2Aug 23, 2005
Undersea branching unit for an undersea optical transmission system
RED SKY SYSTEMS INC9 citations67
US6930825B2Aug 16, 2005
Method and apparatus for sharing pump energy from a single pump arrangement to optical fibers located in different fiber pairs
RED SKY SYSTEMS INC6 citations60
AT & T BELL LAB
2 patentsRED SKY SUBSEA LTD
2 patentsUS7085456B1Aug 1, 2006
Electrical and optical isolating unit for an undersea branching unit
RED SKY SUBSEA LTD14 citations83
US7471895B2Dec 30, 2008
Method and apparatus for obtaining status information concerning optical amplifiers located along an undersea optical transmission line using COTDR
RED SKY SUBSEA LTD2 citations62