POLATIS

PHOTONIC ALL-OPTICAL SWITCH AND SEMI-CONDUCTOR DEVICES; DENSE WAVELENGTH DIVISION MULTIPLEXERS, DENSE WAVELENGTH DIVISION FILTERS, AND OPTICAL SWITCHES, FOR BOTH SPATIAL AND FREQUENCY SWITCHING, AND SWITCH CARDS INCORPORATING THE AFORESAID; PROGRAMMABLE SWITCH DEVICES FOR CONNECTING THE INDIVIDUAL OPTICAL FIBERS IN INPUT AND OUTPUT BUNDLES OF FIBERS, ONE INPUT TO ONE OUTPUT, IN A VARIABLE BUT PREDETERMINED MANNER; SOFTWARE FOR CONTROLLING SUCH PROGRAMMABLE SWITCH DEVICES; ALL FOR USE BY TELECOMMUNICATIONS OPTICAL NETWORK SYSTEM EQUIPMENT PROVIDERS