Dispersion Management and Nonlinearity Enhancement in a Hybrid Nanofiber with a High Index, Cross-Slot-Structure Nanocore

Abstract:

A highly nonlinear, dispersion flattened hybrid nanofiber with a silicon/silica cross-slot-structure nanocore is proposed and analyzed, which is insensitive to polarization for implementing quasi-TE and quasi-TM fundamental modes transmission due to the cross slot effect. Simulation results show that fundamental mode with ultra-small mode effective areas and high nonlinearity at TE and TM polarizations, which are confined in the narrow cross slot by four silicon ribs, can be achieved via this cross-slot-structure core. Moreover, the cladding of four large-air-holes contributes to the tailoring of the group velocity dispersion (GVD) and further enhancment of the nonlinearity. Our results indicate that ultra-small A_eff of 0.098μm² and flat anomalous GVD with less than 13.5 ps.km-1.nm-1 dispersion ripple at C-band are realizable.

• Periodical: Applied Mechanics and Materials (Volumes 668-669)
• Pages: 17-21
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.668-669.17
• Online since: October 2014
• Authors: Kai Wei Jiang, Yu Tian Pan, Guan Jun Wang, Jing Xiao
• Keywords: Cross Slot Effect, Flattened Dispersion, High Nonlinearity, Holey Fiber

References

[1] Xian FengCorresponding author contact information, E-mail the corresponding author, Francesco Poletti, Angela Camerlingo, Francesca Parmigiani, Periklis Petropoulos, Peter Horak, Giorgio M. Ponzo, Marco Petrovich, Jindan Shi, Wei H. Loh, David J. Richardson, Dispersion controlled highly nonlinear fibers for all-optical processing at telecoms wavelengths, Optical Fiber Technology, 16(6), 378–391(2010).

DOI: 10.1016/j.yofte.2010.09.014

[2] G. P. Agrawal, Nonlinear Fiber Optics, Third edition, Academic Press, San Diego (2001).

[3] Leong J. Y. Y, Petropoulos P, Asimakis S, et al, a Lead Silicate Holey Fiber with1860 W-1km-1 at 1550 nm. 2005 Conference on Optical Fiber Communication [C]. Washington DC: Optical Soc. America, 2005: PDP22.

DOI: 10.1109/ofc.2005.193200

[4] Magi E C, Fu L B, Nguyen H C, Lamont M R, Yeom D T, Eggleton B J, Enhanced Kerr nonlinearity in sub-wavelength diameter As2Se3 chalcogenide fiber tapers , Opt. Express 15 10324-9( 2007).

DOI: 10.1364/oe.15.010324

[5] Almeida V R, Xu Q, Barrios C A, Lipson M, Guiding and confining light in void nanostructure, Opt. Letters 29 1209-11(2004).

DOI: 10.1364/ol.29.001209

[6] Saitoh K, Kakihara K, Varsheney S and Koshiba M, Nonlinearity enhancement and dispersion management in bismuth microstructured fibers with a filled slot defect CLEO' 2008 Paper JTuA82.

DOI: 10.1109/cleo.2008.4552232

[7] Lin An, Zheng Zheng, Yusheng Bian, Zheng Li, Sen Shi, Tao Zhou and Jiangtao Cheng, Dispersion-Modified, Highly-Nonlinear Holey Fibre with a High-Index, Slot-Structure Core, Journal of Optics 12, 115502, (2010).

DOI: 10.1088/2040-8978/12/11/115502

[8] A. Khanna, A. Säynätjoki, A. Tervonen, S. Honkanen. Non-birefringent cross-slot waveguide, CLEO Europe 2009, Munich, Germany, 14–19 June 2009, paper CK.P. 10.

DOI: 10.1109/cleoe-eqec.2009.5191969

[9] http: /www. comsol. com.

[10] http: /refractiveindex. info/?group=CRYSTALS&material=SiO2，2013-08-30.

[11] Govind P. Agrawal, Nonlinear Fiber Optics, Third Edition (Optics and Photonics) Academic Press; 3 edition (2001).

[12] Saitoh K and Koshiba M, Single-polarization single-mode photonic crystal fibers IEEE Photon. Technol. Lett, 15, 1384-6(2003).

DOI: 10.1109/lpt.2003.818215

[13] J. V. Galan, P. Sanchis, J. Garcia, J. Blasco, A. Martinez, and J. Martí, Study of asymmetric silicon cross-slot waveguides for polarization diversity schemes, Appl. Opt. 48, 2693–2696 (2009).

DOI: 10.1364/ao.48.002693

[14] Yusheng Bian, Zheng Zheng, Xin Zhao, Yalin Su, Lei Liu, Jiansheng Liu, Jinsong Zhu, and Tao Zhou, T-shaped dielectric slot waveguides for efficient control of birefringence and polarization independent directional coupling, Optics Communications, 285, 5118-5121 (2012).

DOI: 10.1016/j.optcom.2012.07.104