The modified interferometer for measurement of the chromatic dispersion in PCFs

D. Káčik; P. Peterka; J. Canning; I. Turek; M. Kolimar; S. Berezina

doi:10.1117/12.722752

25 May 2007 The modified interferometer for measurement of the chromatic dispersion in PCFs

D. Káčik, P. Peterka, J. Canning, I. Turek, M. Kolimar, S. Berezina

Proceedings Volume 6588, Photonic Crystal Fibers; 65880N (2007) https://doi.org/10.1117/12.722752
Event: International Congress on Optics and Optoelectronics, 2007, Prague, Czech Republic

Abstract

One of the most interesting features of photonic crystal fibres (PCFs) is their unique dispersion. Therefore knowledge of chromatic dispersion is very important for better utilisation and optimisation of PCF potential. A modified low coherence Michelson interferometer is described in the contribution. The modified interferometer consists of an arm with a reference fibre, which has a sputtered mirror at its end face and the other arm contains the fibre under test and the air line with variable length. The advantage of such setting is that the investigated fibre needs no manipulation (mirror creating) and that only one arm should be changed when an other fibre is to be measured. A monochromator and halogen lamp are used as the source that allow measrument of dispersion over a wide spectral range. The optical path difference between the investigated and the reference fibre is about 15 μm (delay 0.05 ps) and can be readily distinguished. Besides describing the interferometer set-up also some results of dispersion measurement in samples of PCF are presented in the contribution.

Citation Download Citation

D. Káčik, P. Peterka, J. Canning, I. Turek, M. Kolimar, and S. Berezina "The modified interferometer for measurement of the chromatic dispersion in PCFs", Proc. SPIE 6588, Photonic Crystal Fibers, 65880N (25 May 2007); https://doi.org/10.1117/12.722752

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