Automatic optical link calibration with channel holders
AssigneeCiena Corporation
InventorsChoudhury A. Al Sayeed, David C. Bownass, David Atkinson, Scott Kohlert
Life of this patent
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Abstract
Automatic optical link calibration systems and methods include an optical node with an Optical Add-Drop Multiplexer (OADM) multiplexer including a channel holder source; an optical amplifier connected to the OADM multiplexer and to a fiber span; an Optical Channel Monitor (OCM) configured to monitor optical spectrum before and after the optical amplifier; and a controller configured to obtain data associated with the fiber span including measurements from the OCM, determine settings of the channel holder source needed to meet a target launch power profile for the fiber span, and configure the channel holder source based on the determined settings.
Claims19
An optical node comprising:
- an Optical Add-Drop Multiplexer (OADM) multiplexer including a channel holder source configured to emulate full-fill channel conditions on the fiber span for calibration thereof;
- an optical amplifier connected to the OADM multiplexer and to a fiber span;
- an Optical Channel Monitor (OCM) configured to monitor optical spectrum before and after the optical amplifier;
- and
- a controller configured to
- obtain data associated with the fiber span including measurements from the OCM,
- determine settings of the channel holder source needed to meet a target launch power profile for the fiber span, and
- configure the channel holder source based on the determined settings.
An optical node comprising:
- an Optical Add-Drop Multiplexer (OADM) multiplexer including a channel holder source;
- an optical amplifier connected to the OADM multiplexer and to a fiber span;
- an Optical Channel Monitor (OCM) configured to monitor optical spectrum before and after the optical amplifier;
- a controller configured to
- obtain data associated with the fiber span including measurements from the OCM,
- determine settings of the channel holder source needed to meet a target launch power profile for the fiber span, and
- configure the channel holder source based on the determined settings;
- and
- an Optical Time Domain Reflectometer (OTDR) configured to measure the fiber span for some of the data.
An optical node comprising:
- an Optical Add-Drop Multiplexer (OADM) multiplexer including a channel holder source;
- an optical amplifier connected to the OADM multiplexer and to a fiber span;
- an Optical Channel Monitor (OCM) configured to monitor optical spectrum before and after the optical amplifier;
- and
- a controller configured to
- obtain data associated with the fiber span including measurements from the OCM,
- determine settings of the channel holder source needed to meet a target launch power profile for the fiber span, wherein the target launch power profile is based on a fiber type in the fiber span and measured loss in the fiber span, and
- configure the channel holder source based on the determined settings.
Dependencies are inferred from the claim text.