Inventor
ROBERTSON MICHAEL J
GB9 patents
⚠️ This page may combine multiple inventors who share the name “ROBERTSON MICHAEL J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRITISH TELECOMM
8 patentsUS5985685ANov 16, 1999
Method for making optical device with composite passive and tapered active waveguide regions
BRITISH TELECOMM53 citations93
US6198863B1Mar 6, 2001
Optical filters
BRITISH TELECOMM42 citations92
US5699378ADec 16, 1997
Optical comb filters used with waveguide, laser and manufacturing method of same
BRITISH TELECOMM34 citations92
US4776655AOct 11, 1988
Single mode optical waveguides of rectangular cross-section
BRITISH TELECOMM46 citations92
US5844929ADec 1, 1998
Optical device with composite passive and tapered active waveguide regions
BRITISH TELECOMM40 citations89
US5528710AJun 18, 1996
Optical switching device with passive input and output stages and active amplifier in a matrix stage
BRITISH TELECOMM50 citations87
US5602862AFeb 11, 1997
Optical clock extraction
BRITISH TELECOMM11 citations68
US4793677ADec 27, 1988
Electro-optic devices with waveguide and having small spatial spread of applied electric field
BRITISH TELECOMM5 citations60