Abstract

Photonic crystal fibers have recently attracted a large amount of interest due to their ability to form supercontinua which can be used in i.e. metrology¹ and optical coherence tomography.' In this paper we investigate the onset of supercontinuum formation for a 75 cm long photonic crystal pumped with femtosecond pulses. The inset in Fig. 1 shows a scanning electron micrograph of the fiber which is made from fused silica. The size of the core is ~1.7 μm and the surrounding airholes have a diameter of ~2.5 μm. The zero dispersion wavelength of the fiber is 660 ± 15 nm.

© 2002 Optical Society of America