Separate spatial soliton pairs in a biased series photorefractive crystal circuit with both the linear and quadratic electro-optic effects

Jiang, Qichang; Su, Yanli; Nie, Hexian; Ma, Zhuang; Li, Yonghong

doi:10.1080/09500340.2016.1253881

Cited by 15 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A fundamentally different type of coupling, known as separate coupling is quite interesting and has become an attractive topic for research in the past few years [33][34][35][36][37]. A biased circuit containing two PR crystals connected in series is considered.…”

Section: Introductionmentioning

confidence: 99%

“…The spatial profile, dynamical evolution and self deflection of the soliton in one crystal can affect the spatial profile, dynamical evolution and self deflection of the soliton in the other crystal, hence the solitons are said to form a separate coupled pair. Such separate coupled soliton pairs have been studied in typical PR media [33][34][35][36][37][38][39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Separate coupled solitons in biased series photorefractive semiconductor circuit

Kumari¹,

Hasan²,

Darwesh³

et al. 2021

Laser Phys.

View full text Add to dashboard Cite

We present, for the first time a theoretical foundation for separately coupled solitons in a biased series circuit consisting of semi-insulating photorefractive multiple quantum well (MQW) waveguides. As an example, a slab semiconductor waveguide based on a GaAs/AlGaAs structure is considered. The coupled steady state space charge field is derived for both the MQW structures using a bipolar band transport model. Hence, a system of two coupled equations is obtained for each MQW structure which governs the dynamical evolution of light beams. We then prove the existence of dark-dark, grey-grey and grey-dark separately coupled soliton pairs. We also see that the soliton propagating individually in one PR semiconductor can affect the other by the light-induced current. We investigate this coupling effect with respect to the soliton beam's intensity profile and for each of the three cases, namely, dark-dark, grey-grey and grey-dark separately coupled solitons. Some potential applications are discussed.

show abstract