Journal of the European Optical Society - Rapid publications, Vol 8 (2013)

Spectral switching control of ultrafast pulses in dual core photonic crystal fibre

M. Koys, I. Bugar, I. Hrebikova, V. Mesaros, R. Buczynski, F. Uherek


The work presented in this paper is a study of an all-optical narrow-band switch in extended spectral area by dual core photonic crystal fibre expressing nonlinear coupler performance. The investigation is focused on the nonlinear propagation of femtosecond pulses in the near infrared spectral region at up to 50 kW peak power which induces spectral broadening through almost two octaves. The mutual effect of nonlinear spectral transformation and field redistribution between the two fibre cores is analyzed by both theoretical and experimental approaches. The simulation of the nonlinear propagation is based on coupled generalized nonlinear Schrödinger equations. A modified numerical model utilizing split-step Fourier method was adapted for dual core fibres. The complex experimental study was accomplished for various input settings such as polarization, intensity and selective coupling into each core and the selective detection of spectra from each core. The presented work encompasses promising results obtained regarding a spectral intensity switch between the two output channels by input intensity or polarization change in the S-band of optical communication systems.

© The Authors. All rights reserved. [DOI: 10.2971/jeos.2013.13041]

Full Text: PDF

Citation Details

Cite this article


J. C. Knight, T. A. Birks, P. St. J. Russell, and D. M. Atkin, ”Allsilica single-mode optical fiber with photonic crystal cladding,” Opt. Lett. 21, 1547–1549 (1996).

J. C. Knight, and P. St. J. Russell, ”New Ways to Guide Light,” Science 296, 276–277 (2002).

D. Mogilevtsev, T. A. Birks, and P. St. J. Russell, ”Group-velocity dispersion in photonic crystal fibers,” Opt. Lett. 23, 1662–1664 (1998).

J. K. Ranka, R. S. Windeler, and A. J. Stentz, ”Optical properties of high-delta air silica microstructure optical fibers,” Opt. Lett. 25, 796–798 (2000).

A. Betlej, S. Suntsov, K. G. Makris, L. Jankovic, D. N. Christodoulides, G. I. Stegeman, J. Fini, et al., ”Alloptical switching and multifrequency generation in a dual-core photonic crystal fibre,” Opt. Lett. 31, 1480–1482 (2006).

J. M. Dudley, G. Genty, and S. Coen, ”Supercontinuum generation in photonic crystal fibre,” Reviews of Modern Physics 78, 1135–1184 (2006).

G. P. Aggrawal, Applications of Nonlinear Fibre Optics (Academic Press, New York, 2001).

J. R. Salgueiro, and Y. S. Kivshar, ”Nonlinear dual-core photonic crystal fiber couplers,” Opt. Lett. 30, 1858–1860 (2005).

M. Liu, Y. Chen, and D. Wang, ”Effects of intrapulse stimulated Raman scattering and intermodal dispersion on short pulse propagation in a nonlinear two-core PCF coupler,” JETP Letters 91, 548–550 (2010).

R. Buczynski, ”Photonic Crystal Fibres,” Acta Physica Polonica A 106, 141–168 (2004).

I. Bugar, D. Lorenc, I. V. Fedotov, A. B. Fedotov, R. Buczynski, D. Pysz, F. Uherek, and A. M. Zheltikov ”Nonlinear frequency conversion in double core photonic crystal fibers,” Proc. SPIE 6582, 16 (2007)

D. Lorenc, M. Aranyosiova, R. Buczynski, R. Stepien, I. Bugar, A. Vincze, and D. Velic, ”Nonlinear refractive index of multicomponent glasses designed for fabrication of photonic crystal fibers,” Appl. Phys. B 93, 531–538 (2008).

M. Koys, I. Bugar, V. Mesaros, and F. Uherek ”Supercontinuum generation in dual core photonic crystal fiber,” Proc. SPIE 7746, 11 (2010).

A. B. Fedotov, A. N. Naumov, A. M. Zheltikov, I. Bugar, D. Chorvat Jr., D. Chorvat, A. P. Tarasevitch, and D. von der Linde, ”Frequency-tunable supercontinuum generation in photoniccrystal fibers by femtosecond pulses of an optical parametric amplifier,” J. Opt. Soc. Am. B 19, 2156–2164 (2002).