Determination of nonlinear refractive index in a Ta2O 5 rib waveguide using self-phase modulation

Chao Yi Tai*, James S. Wilkinson, Nicolas M.B. Perney, M. Caterina Netti, F. Cattaneo, Chris E. Finlayson, Jeremy J. Baumberg

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

89 Dyfyniadau (Scopus)

Crynodeb

Self-phase modulation has been observed for ultrashort pulses of wavelength 800nm propagating through a 1 cm-long Ta2O5 rib waveguide. The associated nonlinear refractive index n2 was estimated to be 7.23×10-19 m2/W, which is higher than silica glass by more than one order of magnitude. Femtosecond time of flight measurements based on a Kerr shutter configuration show that the group velocity dispersion is small at a wavelength of 800 nm, confirming that dispersion may be neglected in the estimation of n2 so that a simplified theory can be used with good accuracy.

Iaith wreiddiolSaesneg
Tudalennau (o-i)5110-5116
Nifer y tudalennau7
CyfnodolynOptics Express
Cyfrol12
Rhif cyhoeddi21
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Hyd 2004
Cyhoeddwyd yn allanolIe

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