List of Division publications with links

2010-11-23 00:00 - Measurement of group-velocity dispersion of Bloch modes in photonic-crystal-fiber rocking filters

G. K. L. Wong, L. Zang, M. S. Kang, and P. St.J. Russell, Optics Letters, Vol. 35, Issue 23, pp. 3982-3984 (2010).

We use low-coherence interferometry to measure the group-velocity dispersion (GVD) of the fast and slow Bloch modes of structural rocking filters, produced by twisting a highly birefringent photonic crystal fiber to and fro while scanning a focused CO2 laser beam along it. The GVD curves in the vicinity of the resonant wavelength differ dramatically from those of the unperturbed fiber, suggesting that rocking filters could be used in the optimization of, e.g., four-wave mixing and supercontinuum generation. Excellent agreement is obtained between theory and experiment.