Light source design using hollow core photonic crystal fibers

Comparing optical properties of hollow core photonic crystal fibers (PCFs), Kagome-lattice hollow core PCF is used to design supercontinuum (SC) light sources for optical coherence tomography systems. By filling high pressure xenon (Xe) through the hollow core of Kagome-lattice PCF, nonlinearity has been increased considerably. Using finite element method with perfectly matched layer, SC spectra at 1.0 and 1.31 µm in normal chromatic dispersion region have been generated using picosecond optical pulses produced from relatively less expensive laser sources.