BOOKHAM

INTEGRATED OPTICAL CIRCUITS AND PARTS THEREFOR; OPTICAL CHIPS; OPTICAL WAVEGUIDES; INTEGRATED OPTICAL CIRCUITS FOR USE IN FIBRE 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-MULTIPLEXER AND WAVELENGTH FILTERS AND OPTICAL MODULATORS