Dark spatial solitons sequence in the biased centrosymmetric photorefractive crystal

Abstract

We theoretically investigate the evolution of dark screening spatial solitons originating from the quadratic electro-optic effect in biased centrosymmetric photorefractive (CP) crystal by using beam propagation method (BPM). The results indicate that the multiple dark solitons sequence can be obtained in the CP crystal with the odd or even initial conditions. If the initial width of the dark notch is smaller, only a fundamental soliton or a Y-junction soliton pair is generated. When the initial width of the dark notch and the bias electric field are increased, the multiple dark spatial solitons sequence is formed, which realized a progressive transition from a low-order soliton to a higher-order solitons sequence in both odd and even conditions. The solitons characteristic is similar to that of screening solitons in the non-centrosymmetric photorefractive (NCP) crystals.

References

[1] SegevM, AgragatA J. Spatial solitons in centrosymmetric photorefractive media[J]. Optics letters, 1997, 22(17):1299-1301

[2] DelreE, CrosignaniB, TamburriniM, et al.. One-dimensional steady-state photorefractive spatial solitons in centrosymmetric paraelectric potassium lithium tantalate niobate[J]. Optics letters, 1998, 23(6):421-423

[3] DelreE, TamburriniM, SegevM, et al.. Two-dimensional photorefractive spatial solitons in centrosymmetric paraelectric potassium lithium tantalate nio-bate[J]. Applied physics letters, 1998, 73(1):16-18

[4] CrosignaniB, DelreE, PortoP D, et al.. Self-focusing and self-trapping in unbiased centrosymmetric photorefractive media[J]. Optics letters, 1998, 23(12):912-914

[5] LiJ P, LuK Q, ZhaoW, et al.. Screening solitons in biased centrosymmetric photorefractive media[J]. Acta photonica sinica, 2006, 35(2):257-260

[6] JiX M, JiangQ C, WangJ L, et al.. Grey soliton in biased one-photon centrosymmetric photorefractive crystals[J]. Optoelectronics technology, 2011, 31(3):153-157

[7] JiX M, JiangQ C, WangJ L, et al.. Separate spatial soliton pairs in a series centrosymmetric and non-centrosymmetric hybrid photorefractive crystal circuit[J]. Chinese journal physics, 2012, 50(5):816-827

[8] SuY L, JiangQ C, JiX M. Temperature effects on the self-deflection of bright screening solitons in centrosymmetric photorefractive crystals[J]. Chinese journal physics, 2010, 48(6):777-782

[9] JiX M, JiangQ C, WangJ L, et al.. Theoretical study of the temporal behavior of one-dimensional bright spatial solitons in biased centrosymmetric photorefractive crystals[J]. Physica scripta, 2011, 83(2):025404

[10] JiangQ C, SuY L, JiX M. Temporal analysis of low-amplitude screening spatial solitons due to two-photon photorefractive effect[J]. Optics & laser technology, 2011, 43(1): 91-94

[11] JiX M, JiangQ C, SuY L, et al.. Temporal behavior of the screening grey spatial solitons in one-photon centrosymmetric and noncentrosymmetric photorefractive crystals[J]. Infrared and laser engineering, 2013, 42(1):63-68

[12] ZhanK Y, HouC F, TianH, et al.. Spatial solitons in centrosymmetric photorefractive crystals due to the two-photon photorefractive effect[J]. Journal of optics, 2010, 12(1):015203

[13] ZhanK Y, HouC F, TianH, et al.. Holographic solitons in centrosymmetric photorefractive crystals[J]. Optics & laser technology, 2010, 42(4): 669-673

[14] ZhanK Y, HouC F, TianH, et al.. Manakov solitons in centrosymmetric photorefractive crystals due to two-photon photorefractive effect[J]. Physics letters A, 2010, 374(10):1242-1245

[15] ZhanK Y, HouC F, TianH, et al.. Incoherently coupled Gaussian soliton pairs in biased centrosymmetric photorefractive crystals[J]. Optics & laser technology, 2010, 42(7):1176-1179

[16] ZhanK Y, HouC F, ZhangY. Incoherently coupled spatial soliton families in centrosymmetric two-photon photorefractive crystals[J]. Journal of optics, 2010, 12(3):035208

[17] HaoL L, HouC F, WangX X, et al.. Coherently coupled bright-bright screening soliton pairs in biased centrosymmetric photorefractive crystals[J]. Optik, 2016, 127(15): 5928-5934

[18] ZhanK Y, HouC F, DuY W. Self-deflection of steady-state bright spatial solitons in biased centrosymmetric photorefractive crystals[J]. Optics communications, 2010, 283(1):138-141

[19] ZhanK Y, HouC F, PuS Z. Temporal behavior of spatial solitons in centrosymmetric photorefractive crystals[J]. Optics & laser technology, 2011, 43(7):1274-1278

[20] KattiA, YadavR A, SinghD P. Theoretical investigation of incoherently coupled solitons in centrosymmetric photorefractive crystals[J]. Optik, 2017, 136: 89-106

[21] JiangQ H, SuY L, MaZ W, et al.. Propagation properties of Airy-Gaussian beams in centrosymmetric photorefractive media[J]. Journal of modern optics, 2018, 65(19):2243-2249

[22] ZhanK Y, HouC F. Gap solitons supported by optical lattices in biased centrosymmetric photorefractive crystals[J]. Optics communications, 2012, 285(17):3649

[23] ChenW J, LuK Q, HuiJ L, et al.. Localized surface waves at the interface between linear dielectric and biased centrosymmetric photorefractive crystals[J]. Optics express, 2013, 21(13): 15595-15602

[24] HuiJ L, LuK Q, ChenW J, et al.. Optical surface waves supported by the interface between a metal and a biased centrosymmetric photorefractive crystal[J]. Optics communications, 2014, 332: 327-331

[25] LuK Q, YuH M, ChenW J, et al.. Defect modes supported by optical lattices in biased centrosymmetric photorefractive crystals[J]. Optical quantum electronics, 2015, 47(8):2709-2716

[26] FengJ P, QinY L, WangY Y, et al.. Defect solitons supported by two-dimensional lattice potentials in biased centrosymmetric photorefractive crystals with saturable self-focusing nonlinearity[J]. Laser physics, 2020, 30(6):065401

[27] ZhangY H, LuK Q, GuoJ B, et al.. Steady-state multiple dark photovoltaic spatial solitons[J]. European physics journal D, 2012, 66(3): 65

[28] ZhangY H, LuK Q, GuoJ B, et al.. Formation of multiple dark photovoltaic spatial solitons[J]. Pramanajournal of physics, 2012, 78(2): 265-275

[29] ZhangY H, HuX H, LuK Q, et al.. Steady-state multiple dark spatial solitons in closed-circuit photovoltaic media[J]. Journal of optical technology, 2013, 80(3):135-141

[30] ZhangY H, SuW, DuanC L, et al.. Steady state multiple dark spatial solitons in the biased photorefractive-photovoltaic crystals[J]. Optoelectronics letters, 2018, 14(5):0367-0371