Optic system useful with metal service lines
Optical apparatus for combining light beam arrays having differe
Optical backplane
Optical branching device with internal waveguide
Optical broadcast network
Optical communication set
Optical communication system
Optical communication system
Optical communication system
Optical communication system
Optical communication system in the subscriber loop
Optical communication system with a stabilized "comb" of frequen
Optical communication systems enabling minimal subscriber compon
Optical communication systems using raman repeaters and componen
Optical communications apparatus for sending optical transmissio
Optical communications systems
Optical communications systems and process for signal amplificat
Optical coupler for optical direct amplifier
Optical coupling device utilizing a mirror and cantilevered arm
Optical data transmission with frequency multiplexing