Characterisation of optical pulses travelling through a photonic crystal fibre using Fourier-transform spectral interferometry

T. Grósz; M. Kiss; A. P. Kovács

doi:10.1117/12.2017260

3 May 2013 Characterisation of optical pulses travelling through a photonic crystal fibre using Fourier-transform spectral interferometry

T. Grósz, M. Kiss, A. P. Kovács

Author Affiliations +

Proceedings Volume 8775, Micro-structured and Specialty Optical Fibres II; 87750E (2013) https://doi.org/10.1117/12.2017260
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

Dispersion properties of a 37 cm long photonic crystal fibre were studied using spectral interferometry. The interferograms were evaluated by the conventional and the windowed Fourier-transform method, as well as other commonly used ones, such as the cosine function fit, the stationary phase point and the minima-maxima methods. It is shown that from the five techniques the conventional Fourier-transform method provided the dispersion coefficients with the highest accuracy, and both Fourier-transform techniques could detect phase jumps in the vicinity of the absorption valleys seen in the transmission spectrum of the fibre. We present a novel simple evaluation procedure based on Fouriertransform for a quick retrieval of the spatial and temporal pulse shape after the fibre. The time delay between the higher and the fundamental transversal modes was also measured by the Fourier-transform method.

Citation Download Citation

T. Grósz, M. Kiss, and A. P. Kovács "Characterisation of optical pulses travelling through a photonic crystal fibre using Fourier-transform spectral interferometry", Proc. SPIE 8775, Micro-structured and Specialty Optical Fibres II, 87750E (3 May 2013); https://doi.org/10.1117/12.2017260

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