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Opt Express. 2004 Jul 12;12(14):3171-7.

Pump noise as the source of self-modulation and self-pulsing in Erbium fiber laser.


We report on the first experimental observation of an influence of noise in a pumping diode laser on the appearance of self-induced modulation and self-pulsing in an all-fiber Erbium laser. The diode laser amplitude noise, being a superposition of spectral components, with some of them to resonantly match the frequency of relaxation oscillations in the Erbium fiber laser at the pump rate fixed, acts as a disturbing force, being a source of the modulation effects. This disturbance enforces the relaxation oscillations of the Erbium fiber laser to become non-dumped, which appears as the self-modulation and even self-pulsing of the laser output power.

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