Giant anomalous self-steepening in photonic crystal waveguides

被引:13
作者
Husko, Chad [1 ]
Colman, Pierre [2 ,3 ]
机构
[1] Univ Sydney, Sch Phys, IPOS, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Sydney, NSW 2006, Australia
[2] DTU Foton, Lyngby, Denmark
[3] Univ Paris 11, IEF, Orsay, France
来源
PHYSICAL REVIEW A | 2015年 / 92卷 / 01期
基金
澳大利亚研究理事会;
关键词
SLOW-LIGHT; PULSE-PROPAGATION; ULTRASHORT PULSES; PHASE MODULATION; SOLITON DYNAMICS; MOMENT METHOD; SILICON; ABSORPTION; DISPERSION; FIBERS;
D O I
10.1103/PhysRevA.92.013816
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Self-steepening of optical pulses arises due to the dispersive contribution of the effective Kerr nonlinearity. In typical structures this response is on the order of a few femtoseconds with a fixed frequency response. In contrast, the effective Kerr nonlinearity in photonic crystal waveguides (PhCWGs) is largely determined by the geometrical parameters of the structure and is consequently tunable over a wide range. Here we show group-velocity (group-index) modulation leads to a previously unexplored physical mechanism for generating self-steepening. Further, we demonstrate that periodic media such as PhCWGs can exhibit self-steepening coefficients two orders of magnitude larger than typical systems. At thesemagnitudes the self-steepening strongly affects the nonlinear pulse dynamics even for picosecond pulses. Due to interaction with additional higher-order nonlinearities in the semiconductormaterials under consideration, we employ a generalized nonlinear Schrodinger equation numerical model to describe the impact of self-steepening on the temporal and spectral properties of the optical pulses in practical systems, and define appropriate figures of merit. These results provide a theoretical description for recent experimental results presented by C.A. Husko et al. [Sci. Rep. 3, 1100 (2013)] and F. Raineri et al. [Phys. Rev. A 87, 041802 (2013)]. More generally, these observations apply to all periodic media due to the rapid group-velocity variation characteristic of these structures.
引用
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页数:7
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共 42 条
[1]   The nonlinear optical properties of AlGaAs at the half band gap [J].
Aitchison, JS ;
Hutchings, DC ;
Kang, JU ;
Stegeman, GI ;
Villeneuve, A .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1997, 33 (03) :341-348
[2]   NON-LINEAR ASYMMETRIC SELF-PHASE MODULATION AND SELF-STEEPENING OF PULSES IN LONG OPTICAL-WAVEGUIDES [J].
ANDERSON, D ;
LISAK, M .
PHYSICAL REVIEW A, 1983, 27 (03) :1393-1398
[3]   Slow light in photonic crystals [J].
Baba, Toshihiko .
NATURE PHOTONICS, 2008, 2 (08) :465-473
[4]   Optical pulse propagation in nonlinear photonic crystals [J].
Bhat, NAR ;
Sipe, JE .
PHYSICAL REVIEW E, 2001, 64 (05) :16
[5]   Observation of soliton compression in silicon photonic crystals [J].
Blanco-Redondo, A. ;
Husko, C. ;
Eades, D. ;
Zhang, Y. ;
Li, J. ;
Krauss, T. F. ;
Eggleton, B. J. .
NATURE COMMUNICATIONS, 2014, 5
[6]   Controlling free-carrier temporal effects in silicon by dispersion engineering [J].
Blanco-Redondo, Andrea ;
Eades, Daniel ;
Li, Juntao ;
Lefrancois, Simon ;
Krauss, Thomas F. ;
Eggleton, Benjamin J. ;
Husko, Chad .
OPTICA, 2014, 1 (05) :299-306
[7]   Material slow light and structural slow light: similarities and differences for nonlinear optics [Invited] [J].
Boyd, Robert W. .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2011, 28 (12) :A38-A44
[8]   Nonlinear optical pulse propagation in the single-cycle regime [J].
Brabec, T ;
Krausz, F .
PHYSICAL REVIEW LETTERS, 1997, 78 (17) :3282-3285
[9]   Two-photon absorption and Kerr coefficients of silicon for 850-2200 nm [J].
Bristow, Alan D. ;
Rotenberg, Nir ;
van Driel, Henry M. .
APPLIED PHYSICS LETTERS, 2007, 90 (19)
[10]   Soliton dynamics in non-uniform fiber tapers: analytical description through an improved moment method [J].
Chen, Zhigang ;
Taylor, Antoinette J. ;
Efimov, Anatoly .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2010, 27 (05) :1022-1030