Used to secure fiber optic cable to a LED on a terminal light source, or a photodiode on a terminal light amplifier in an optical repeater (1982.0529.03 and .04). A metal block with a V-shaped grove running lengthwise. Grove is covered by two metal and one ceramic plates. Threaded mounting holes are underneath. No extant makers marks.
Used in fiber optic repeater (1982.0529.01). A GTE optical repeater set on a circuit board. Seven leads connect the board to the unit which in turn feeds an orange plastic insulated glass fiber. One label reads: "Property of GTE / 47-3T1-034 / Laboratories", second label reads: "Property of GTE / 111-374 / Laboratories". Dymo label reads: "TLA". Using this equipment, GTE opened a fiber-optic telephone line between Long Beach and Artesia, California, in 1977. The transmitter employed a light-emitting diode (LED). Later systems would use lasers." Reference: http://www.sil.si.edu/Exhibitions/Underwater-web/uw-optic-05.htm.
Used in fiber optic repeater (1982.0529.01). A GTE terminal light source for an optical repeater set on a circuit board. One lead connects the board to electronics which in turn feeds a light emitting diode connected to an orange plastic insulated glass fiber. Printed on board: "G.T.E. Laboratories / C.O. Light Source Mod". Dymo label reads: "TLS". Using this equipment, GTE opened a fiber-optic telephone line between Long Beach and Artesia, California, in 1977. The transmitter employed a light-emitting diode (LED). Later systems would use lasers." Reference: http://www.sil.si.edu/Exhibitions/Underwater-web/uw-optic-05.htm.
Fiber optic cable sample. Used with fiber optics system that includes repeater (1982.0529.01). No extant makers marks. Plastic insulated glass fibers running parallel with an insulated copper line. Internal insulation includes paper and plastic wraps. A foil wrap separates layers within the cable.
Light emitting diode (LED) in a metal canister. Coaxial connector on one end, plastic covered tip on other. Written on canister: "C9". Used on terminal light source board for fiber optics repeater (1982.0529.04)
