Patent ID: 7593640

Claim:
A method of dynamically adjusting an optical system having a plurality of transmission channels, a first repeater and a second repeater, each repeater having at least one optical module, the method comprising: measuring the quality of an optical signal at an output of the system downstream of the second repeater using an electronic signal processor unit and sending a signal to a central control unit of the system, wherein the quality is defined by an error function (E); varying at least one optical parameter of the at least one optical module in the first repeater and at least one optical parameter of the at least one optical module in the second repeater using the central control unit; 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) using the central control unit; and adjusting at least one parameter of the at least one optical module in the first repeater and the at least one optical module in the second repeater toward said operating point of the system (X) based upon commands transmitted via supervisory channels by the central control unit.