Title :
Spectral macro-bending loss considerations for photonic crystal fibres
Author :
Sørensen, T. ; Broeng, J. ; Bjarklev, A. ; Hansen, T.P. ; Knudsen, E. ; Libori, S.E.B. ; Simonsen, H.R. ; Jensen, J.R.
Author_Institution :
Res. Center COM, Tech. Univ. Denmark, Lyngby, Denmark
Abstract :
Both a scalar method and a fully vectorial method have been applied to modelling the bending losses in photonic crystal fibres (PCFs). Due to a decreasing index difference between the core and the cladding towards short wavelengths, an unusual loss mechanism is seen, that is a short-wavelength loss edge. This is verified by measurements. For large-mode area PCFs, the model gives a massive overestimate, never an underestimate.
Keywords :
micro-optics; optical fibre cladding; optical fibre losses; photonic crystals; vectors; bending losses; cladding; core; decreasing index difference; fully vectorial method; large-mode area; photonic crystal fibres; scalar method; short-wavelength loss edge; spectral macro-bending loss considerations; unusual loss mechanism;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:20020713
