75906107
Jan 31, 2000
Feb 4, 2003
INTEGRATED OPTICAL CIRCUITS; OPTICAL CHIPS; OPTICAL WAVEGUIDES; INTEGRATED OPTICAL CIRCUITS FOR USE IN FIBER OPTIC COMMUNICATION SYSTEMS; OPTICAL TRANSCEIVERS; OPTICAL SWITCHES; OPTICAL COUPLERS; OPTICAL WAVEGUIDES; OPTICAL INTERFEROMETERS; OPTICAL GYROS; OPTICAL DELAY LINES; OPTICAL SIGNAL PROCESSORS; OPTICAL DISTANCE MEASURERS; OPTICAL ATTENUATORS; OPTICAL TEMPERATURE SENSORS; OPTICAL CHEMICAL SENSORS; OPTICAL BIOLOGICAL SENSORS; OPTICAL MULTIPLEXERS AND DE-MULTIPLEXERS; WAVELENGTH FILTERS AND OPTICAL MODULATORS
Electrical and Scientific Apparatus