期刊
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 28, 期 9, 页码 2301-2309出版社
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.28.002301
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资金
- Academy of Finland [134891, 130099, 134998, 128331, 135030]
- Graduate School of Modern Optics and Photonics
- Academy of Finland (AKA) [134891, 135030, 134998, 130099, 130099, 134998, 134891, 135030] Funding Source: Academy of Finland (AKA)
Using second-order coherence theory of nonstationary light we examine in detail the coherence properties of supercontinuum radiation generated in nonlinear fibers. We show that the supercontinuum can be divided into quasi-coherent and quasi-stationary parts and that the relative contributions depend on the dynamics involved in the spectral broadening process. We establish the correspondence between the quasi-coherent part of the two-frequency correlation function of the second-order theory and the usual Dudley-Coen degree of coherence used to characterize the shot-to-shot stability of supercontinuum sources. Experimental implementation for measuring separately the quasi-coherent and quasi-stationary contributions is further addressed. Our results open the route for complete characterization of supercontinuum coherence. (C) 2011 Optical Society of America
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