METHOD FOR STABILISING A DISTRIBUTED-REFLECTOR LASER SOURCE

摘要

The invention relates to a method for stabilising the operation of a wavelength-tunable, distributed-reflector (2) laser emission source (L). According to the invention, the Bragg wavelength of the reflector (2) is adjusted in such a way that, for each selected operating wavelength (SEL), the derivative (dPr/dIa) of the power of the laser in relation to the current (Ia) injected into the amplifying section (1) of the laser (L) is maintained equal to a nominal value for which the source has a rejection rate for the secondary modes which is close to the maximum value that said rate can reach for the selected wavelength. The inventive method can be used for tunable laser sources for optical transmission systems using wavelength multiplexing.