摘要 |
A method for linearizing optical transmission systems that includes an optical linearizer connected to the output of the optical transmitter. From the output, which includes a modulated signal and a transmitter distortion, the linearizer interacts with the wavelength chirping (dlambdc) of the transmitter output. More specifically, the linearizer is characterized by a wavelength dependent optical transfer curve F(lambd) that utilizes dlambdc to induce a compensation distortion. Further, the optical transfer curve F(lambd) has a reference wavelength (lambdp) and an operating point wavelength offset DELTAlambdb. In operation, (lambdp+DELTAlambdb) of the optical transfer curve F(lambd) is aligned with (lambdc) of the output to establish an effective value for the compensation distortion. This compensation distortion is then added with the transmitter distortion to cancel the transmitter distortion from the modulated signal; to thereby linearize the output.
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