Optical system that improves spectrally distorted signals

An optical system that maximizes signal quality related to spectral shape of an optical signal, the system comprising:

• a light source module including a light source, the light source providing an optical signal to an optical fiber that includes a plurality of optical fiber segments;
• a light receiver module including a receiver input that receives the optical signal from one of the plurality of the optical fiber segments;
• and
• a plurality of fixed optical filters coupled between the light source module and the light receiver module by the plurality of optical fiber segments, wherein the plurality of fixed optical filters filter the optical signal and a center filter frequency of at least one of the fixed optical filters is not aligned with a center source frequency of the light source, and wherein the center source frequency is varied to maximize signal quality exhibited by the optical signal.

A method for maximizing signal quality of an optical signal in an optical system, the method comprising the steps of:

• providing a light source module including a light source, the light source providing an optical signal to an optical fiber that includes a plurality of optical fiber segments;
• providing a light receiver module including a receiver input that receives the optical signal from one of the plurality of the optical fiber segments;
• providing a plurality of fixed optical filters coupled between the light source module and the light receiver module by the plurality of optical fiber segments, wherein the plurality of fixed optical filters filter the optical signal;
• and
• providing a tunable optical filter including a control input, a filter input and a filter output, wherein the filter input receives the optical signal and the filter output provides a filtered optical signal, and wherein a center filter frequency of the tunable optical filter is varied to maximize signal quality exhibited by the filtered optical signal responsive to a control signal on the control input.

A method for maximizing signal quality of an optical signal in an optical system, the method comprising the steps of:

• providing a light source module including a light source, the light source providing an optical signal to an optical fiber that includes a plurality of optical fiber segments;
• providing a light receiver module including a receiver input that receives the optical signal from one of the plurality of the optical fiber segments;
• and
• providing a plurality of fixed optical filters coupled between the light source module and the light receiver module by the plurality of optical fiber segments, wherein the plurality of fixed optical filters filter the optical signal and a center filter frequency of at least one of the fixed optical filters is not aligned with a center source frequency of the light source, and wherein the center source frequency is varied to maximize signal quality exhibited by the optical signal.