Publication No: 3754

Wavelength dependent polarization properties of a long period grating inscribed in a pure-fused-silica photonic crystal fiber

C.Caucheteur, A.A.Fotiadi, and P.Mégret
Faculté Polytechnique de Mons (Belgium)

G.Brambilla
Optoelectronics Research Centre, University of Southampton (United Kingdom)

S.A.Slattery
National University of Ireland, University College Cork (Ireland)

D.N.Nikogosyan
National University of Ireland, University College Cork (Ireland) and Aston University (United Kingdom)

Abstract

Measurements of polarization properties (polarization dependent loss and differential group delay) of a long-period grating inscribed by means of high-intensity femtosecond 264 nm pulses in an endlessly single mode photonic crystal fibre are reported. Strong modulation in the spectra of polarization dependent loss and differential group delay with periods of 2.6 nm and 1.3 nm, respectively, were found. As such an effect has not been observed in standard optical fibres, it is believed that this is due to the specific mode structure of the holey fibre used for grating fabrication.

Optics and Optoelectronics Prague 16-19 Apr (2007)

doi: 10.1117/12.722772