Method for detecting wavelength usage conflicts in an optical network
AssigneeCiena Corporation
InventorsVipul Bhatnagar, David Bownass, Giuseppe Bordogna
Life of this patent
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Abstract
A method of adding a transceiver including a transmitter and a receiver to an optical network. The transceiver is controlled to enable the receiver while maintaining the transmitter in a disabled state. The receiver detects a presence of an optical signal at a first wavelength. If an optical signal at the first wavelength is not present, the transmitter is enabled. Responsive to detection that an optical signal at the first wavelength is present: a feature of the optical signal, and a match condition between the detected feature and a predetermined feature are detected. The transmitter is enabled responsive to detection of the match condition.
Claims22
A method of using a transmitter and a receiver in an optical network, the method comprising:
- a) enabling the receiver while maintaining the transmitter in a disabled state;
- b) detecting, by the receiver, a presence of an optical signal at a first wavelength;
- c) responsive to detection that an optical signal at the first wavelength is not present, enabling the transmitter to transmit light;
- at the first wavelength;
- and
- d) responsive to detection that an optical signal at the first wavelength is present:
- detecting a feature in overhead of the optical signal,
- detecting a match condition between the detected feature of the optical signal and a predetermined feature of the transmitter, and
- enabling the transmitter to transmit light responsive to detection of the match condition.
An apparatus for use in an optical network, the apparatus comprising:
- a transmitter configured to transmit an optical signal into the optical network;
- a receiver configured to receive an optical signal via the optical network;
- and
- a controller connected to the transmitter and the receiver, the controller configured to:
- a) enable the receiver while maintaining the transmitter in a disabled state;
- b) detect a presence of an optical signal at a first wavelength;
- c) responsive to detection that an optical signal at the first wavelength is not present, enable the transmitter to transmit light;
- at the first wavelength;
- and
- d) responsive to detection that an optical signal at the first wavelength is present:
- detect a feature in overhead of the optical signal;
- detect a match condition between the detected feature of the optical signal and a predetermined feature of the transmitter;
- and
- enable the transmitter to transmit light responsive to detection of the match condition.
Dependencies are inferred from the claim text.