pump laser

separated by a short current off (no current) condition (space). Similarly, digital fiber optic transmission systems (FOTS) operate on the basis of light on (1 bit) and light off (0 bit).

• EDIFACT (Electronic Data Interchange For Administration, Commerce, and Transport)
• Edison, Thomas Alva (1847–1931)
• .edu (education)
• EEB (Extended Erlang B)
• EF (Expedited Forwarding)
• EFF
• EFF (Electronic Frontier Foundation)
• e.g. (exempli gratia)
• egosurf
• EGP (Exterior Gateway Protocol)
• EGPRS (Enhanced General Packet Radio System)
• EHF (Extremely High Frequency)
• EIA
• EIA-232
• EIA (Electronic Industries Alliance)
• EIA/TIA
• EIA/TIA (Electronic Industry Alliance/Telecommunications Industry Alliance)
• EIEIO
• EIR (Excess Information Rate)
• EKTS (Electronic Key Telephone System)
• ELAN (Emulated LAN)
• electricity
• electricity
• electric telegraph
• electromagnetic