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AssigneeCisco Photonics Italy S.r.L.
InventorsMauro Rudi Casanova, Pietro Centenari, Adriano Nava
Estimating the term…
An optical communication system and method for starting up and shutting down the system to ensure safety during repair of a fiber break are disclosed. A technique for shutting down an optical communication system having spans of optical transmission fiber interspersed serially between optical transformation sites and a plurality of amplifier sites includes shutting down both amplifiers on either side of a fiber disruption and both amplifiers in the same amplifier sites serving transmission in an opposite direction, followed by deactivation of all amplifiers within the same optical line between optical transformation sites. During startup, amplifiers enter an operating mode to ignore a system shutdown signal, an amplifier at a terminal site is forced on, and then successive amplifiers step through an intermediate safe power level before reaching full operating power.
A method of shutting-down an optical communication system having spans of optical transmission fiber interspersed serially between optical transformation sites and a plurality of amplifier sites containing first direction bound and second direction bound optical amplifiers, the optical transformation sites being selected from a group comprising a transmitter, an add/drop multiplexer, an opto-electronic regenerator, and a receiver, comprising the steps of:
A method of starting-up a deactivated optical line within an optical communication system, the optical line having spans of optical transmission fiber positioned between two optical transformation sites and interspersed serially between a plurality of amplifier sites containing first direction bound and second direction bound optical amplifiers, terminal-site amplifiers being within amplifier sites positioned immediately downstream from the optical transformation sites, optical line amplifiers being within amplifier sites other than the amplifier sites immediately downstream from the optical transformation sites, the optical transformation sites being selected from a group comprising a transmitter, an add/drop multiplexer, an opto-electronic regenerator, and a receiver, comprising the steps of:
A supervisory control system for an optical communication line having spans of optical transmission fiber positioned between two optical transformation sites and interspersed serially between a plurality of amplifier sites containing first direction bound and second direction bound optical amplifiers, terminal-site amplifiers being within amplifier sites positioned immediately downstream from the optical transformation sites, optical line amplifiers being within amplifier sites other than the amplifier sites immediately downstream from the optical transformation sites, the optical transformation sites being selected from a group comprising a transmitter, an add/drop multiplexer, an opto-electronic regenerator, and a receiver, comprising:
A method of shutting-down an optical communication system having spans of optical transmission fiber interspersed serially between optical transformation sites and a plurality of amplifier sites containing first direction bound and second direction bound optical amplifiers, comprising the steps of:
A method of starting-up a deactivated optical line within an optical communication system, the optical line having spans of optical transmission fiber positioned between two optical transformation sites and interspersed serially between a plurality of amplifier sites containing first direction bound and second direction bound optical amplifiers, terminal-site amplifiers being within amplifier sites positioned immediately downstream from the optical transformation sites, optical line amplifiers being within amplifier sites other than the amplifier sites immediately downstream from the optical transformation sites, comprising the steps of:
A supervisory control system for an optical communication line having spans of optical transmission fiber positioned between two optical transformation sites and interspersed serially between a plurality of amplifier sites containing first direction bound and second direction bound optical amplifiers, terminal-site amplifiers being within amplifier sites positioned immediately downstream from the optical transformation sites, optical line amplifiers being within amplifier sites other than the amplifier sites immediately downstream from the optical transformation sites, comprising:
Dependencies are inferred from the claim text.