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Emission properties of a passively mode-locked fiber laser for time division multiplexing of fiber Bragg grating array applications

The emission characteristics of a passively mode-locked erbium fiber laser for use as a source for interrogating multiplexed fiber Bragg grating sensors are reported. Specifically investigated are the temporal and spectral characteristics, optical extinction ratio, and relative intensity noise. This source is demonstrated to achieve the performance required for highresolution interferometric interrogation of time division multiplexed fiber Bragg grating sensors.