Abstract
We present a noninterferometric method for direct and complete characterization of the degree of first-order temporal coherence of low-coherence broadband sources both in amplitude and phase. The method is based on measuring the radio-frequency transfer function of amplitude-modulated partially coherent guided waves in a system with first-order dispersion. Experimental data for sources based on amplitude-modulated amplified spontaneous emission in the band having spectral widths up to and subsequently dispersed in a standard single-mode fiber coil provide complete characterization of the temporal coherence with resolution and a dynamic range exceeding .
© 2008 Optical Society of America
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