Generation and application of high-quality supercontinuum sources

Ultrawideband supercontinua have been generated using ultrashort pulses and zero-dispersion highly nonlinear fiber. However, they have inherent large noise and spectral fine structure. We generated a widely and flatly broadened, low-noise, highly coherent, high-quality supercontinuum and used it to demonstrate ultrahigh-resolution optical coherence tomography in several wavelength regions.

► Ultrawideband supercontinuum was generated using ultrashort pulses and highly nonlinear fibers.
► We demonstrated low noise, coherent, high quality supercontinuum generation.
► Using generated high quality supercontinuum, ultrahigh resolution optical coherence tomography was demonstrated.
► We generated supercontinua at five wavelength regions and wavelength dependence of OCT was investigated.