Method of dynamically controlling an optical module
AssigneeAlcatel Optronics France
InventorDominique Hamoir
Life of this patent
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Abstract
A method of dynamically adjusting at least one optical module in an optical system including a plurality of transmission channels includes the following steps: measuring the quality of the optical signal at the output of the system as defined by an error function (E); varying at least one optical parameter (Xl) of at least one module of the system; measuring a differential error (ΔE) introduced by each variation on the error function of the optical signal at the output of the system; estimating an operating point (X) of the system corresponding to an expected reduction of the error function (E); and adjusting at least one parameter of at least one optical module (Xl) toward said operating point of the system (X).
Claims16
A method of dynamically adjusting at least one optical module in an optical system including a plurality of transmission channels, which method includes the following steps:
- measuring the quality of the optical signal at the output of the system as defined by an error function (E);
- varying at least one optical parameter (Xl) of at least one module of the system;
- measuring a differential error (ΔE) introduced by each variation on the error function of the optical signal at the output of the system;
- estimating an operating point (X) of the system corresponding to an expected reduction of the error function (E);
- and
- adjusting at least one parameter of at least one optical module (Xl) toward said operating point of the system (X):
A method according to any preceding claims of dynamically adjusting an optical module, characterized in that the steps of said method are repeated in looped fashion during operation of the optical system.
A method according to any preceding claims of dynamically adjusting an optical module, characterized in that the operating point (X) is calculated by a central control unit of the system (CPU).
A method according to any preceding claims of dynamically adjusting an optical module, characterized in that the variations of the parameters of the optical modules (Xl) and the commands for adjusting each optical module of the system are determined by a central control unit of the system and transmitted over supervisory channels of said system.
Dependencies are inferred from the claim text.