Silicon Nanowire Embedded Spiral Photonic Crystal Fiber for Soliton-Effect Pulse Compression

Abstract:

In this paper, we propose a new type of optical waveguide called silicon nanowire embedded equai-angular spiral photonic crystal fiber (SN-SPCF) using fully vectorial finite element method, where closely arranged arrays of air holes act as cladding and nanosize silicon material at the centre acts as core. We show that the proposed nanowire embedded PCF of 400 nm core diameter exhibits high anomalous group velocity dispersion (-3148 ps²/km), small third order dispersion (-8.6591 ps³/km) and high nonlinearity (443.2 W^-1m^-1) at 1550 nm wavelength. Soliton-effect pulse compression of femtosecond pulses in a silicon nanowire-spiral photonic crystal fiber at 1550 nm is numerically studied. We demonstrate a pulse compression of 75 fs input pulse to about 4 fs by the simultaneous actions of both linear effects (a large anomalous group velocity dispersion and a small third order dispersion) and the nonlinear effect (an effective high nonlinearity).

• Periodical: Advanced Materials Research (Volume 938)
• Pages: 316-321
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.938.316
• Online since: June 2014
• Authors: E. Gunasundari*, K. Senthilnathan, S. Sivabalan, K. Nakkeeran, P. Ramesh Babu
• Keywords: Silicon Nanowire, Soliton-Effect Pulse Compression, Spiral Photonic Crystal Fiber

References

[1] R. Vasantha Jayakantha Raja, K. Senthilnathan, K. Porsezian and K. Nakkeeran, Efficient pulse compression using tapered photonic crystal fiber at 850 nm, IEEE J. Quantum Electron. 46 (2010) 1795-1803.

DOI: 10.1109/jqe.2010.2050865

[2] J. C. Travers, J. M. Stone, A. B. Rulkov, B. A. Cumberland, A. K. George, S. V. Popov, J. C. Knight, and J. R. Taylor, Optical pulse compression in dispersion decreasing photonic crystal fiber, Opt. Express. 15 (2007) 13203–13211.

DOI: 10.1364/oe.15.013203

[3] B. B. Hu and M. C. Nuss, Imaging with terahertz waves, Opt. Let. 20 (1995) 1716– 1718.

[4] T. Nagatsuma, M. Yaita, M. Shinagawa, K. Kato, A. Kozen, K. Iwatsuki, and K. Suzuki, Electrooptic characterization of ultrafast photodetectors using adiabatically compressed soliton pulses, Electron. Lett. 30 (1994) 814–816.

DOI: 10.1049/el:19940433

[5] D. H. Auston and M. C. Nuss, Electrooptic generation and detection of femtosecond electrical transients, IEEE J. Quantum Electron. 24 (1988) 184–197.

DOI: 10.1109/3.114

[6] J. Valdmanis and G. Mourou, Subpicosecond electrooptic sampling: Principles and applications, IEEE J. Quantum Electron. 22, (1986) 69–78.

DOI: 10.1109/jqe.1986.1072867

[7] M. Foster, A. L. Gaeta, Q. Caoand, and R. Trebino, Soliton-effect compression of Supercontinuum to few-cycle durations in photonic nanowires, Opt. Express. 13 (2005) 6848– 685.

DOI: 10.1364/opex.13.006848

[8] M. A. Foster, A. C. Turner, M. Lipson, and A. L. Gaeta, Nonlinear optics in photonic nanowires, Opt Express. 16 (2008) 1300–1320.

DOI: 10.1364/oe.16.001300

[9] F. Biancalana, T.X. Tran, S. Stark, M.A. Schmidt and P. St.J. Russell, Emergence of geometrical optical nonlinearities in photonic crystal fibre nanowires, Phys. Rev. Lett, 105 (2010) 093904.

DOI: 10.1103/physrevlett.105.093904

[10] A. Agrawal, N. Kejalakshmy, B. M. A. Rahman and K.T. V. Grattan, Soft glass equiangular spiral photonic crystal fiber for supercontinuum generation, IEEE Photon. Tech. Lett. 21 (2009) 1722-1724.

DOI: 10.1109/lpt.2009.2032523

[11] R. T. Bise and D. Trevor, Sol-gel derived microstructured fiber: fabrication and characterization, Technical Digest of Optical Fiber Communication Conference (OFC/OSA), Paper OWL6, Anaheim, California (2005).

DOI: 10.1109/ofc.2005.192772

[12] G. P. Agrawal, Nonlinear fiber optics, Academic Press, San Diego, (2001).