OOO (Optical-Optical-Optical)

A device that is purely optical in nature, rather than having electri-

cal or electronic as well as optical components. The repeaters used in fiber optic transmission systems (FOTS), for example, are Optical-Electrical-Optical (OEO). Optical switches used in wavelength division multiplexed (WDM) transmission systems sometimes are purely optical. See also FOTS, OEO, optical, and WDM.

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• numbering plan administration (NPA)
• Numbering Plan Area (NPA)
• number portability
• Number Portability Administration Center (NPAC)
• Numbers
• numerical aperture (NA)
• NXX
• NXX
• NXX
• Nyquist, Harry (1889–1976)
• Nyquist theorem
• NZDF (Non Zero Dispersion-Shifted Fiber)
• O
• OADM (Optical Add/Drop Multiplexer)
• OAM&P (Operations, Administration, Management, and Provisioning)
• O&M (Operations and Maintenance)
• O-Band (Original Band)
• oblique
• OBRA 93
• obsessive compulsive disorder (OCD)
• obtuse
• OC-192
• OC-48
• OC-48
• OC-48