Inventor
SPIRIT DAVID M
GB5 patents
Patents
5 patentsUS5742415AApr 21, 1998
Optical switching device
BRITISH TELECOMM31 citations90
US5504617AApr 2, 1996
Optical time domain reflectometry
BRITISH TELECOMM19 citations90
US5343286AAug 30, 1994
OTDR having optically switched amplified output onto test fibre to suppress optical amplifier noise between OTDR pluses
BRITISH TELECOMM46 citations90
US5298965AMar 29, 1994
OTDR using distributed optical amplification in optical waveguide under test
BRITISH TELECOMM23 citations89
US5448059ASep 5, 1995
Optical time domain relectometry with optical amplifier for extended range and/or sensitivity
BRITISH TELECOMM19 citations78