Nonlinear Guided Waves and Their Applications最新文献_第4页

Wavelength Conversion by Difference-Frequency-Generation for Telecommunications Applications 电信应用用差频产生波长转换

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nwd.1

S. Yoo

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Generalized Higher-Order Nonlinear Evolution Equation for Multi-Dimensional Spatio-Temporal Propagation 多维时空传播的广义高阶非线性演化方程

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nwe.17

S. Blair, K. Wagner

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Bandgap Engineering for the Control of Second Order Non-linearities in GaAs/AlGaAs Asymmetric Multiple Quantum Well Waveguides GaAs/AlGaAs非对称多量子阱波导二阶非线性控制的带隙工程

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.fc.3

M. W. Street, N. Whitbread, C. Hamilton, B. Vögele, J. Aitchison, D. Hutchings, J. Marsh, G. Kennedy, W. Sibbet

{"title":"Bandgap Engineering for the Control of Second Order Non-linearities in GaAs/AlGaAs Asymmetric Multiple Quantum Well Waveguides","authors":"M. W. Street, N. Whitbread, C. Hamilton, B. Vögele, J. Aitchison, D. Hutchings, J. Marsh, G. Kennedy, W. Sibbet","doi":"10.1364/nlgw.1996.fc.3","DOIUrl":"https://doi.org/10.1364/nlgw.1996.fc.3","url":null,"abstract":"Second order non-linear optical effects in quasi-phase-matched structures have been the subject of much research activity in recent years. In particular, cascaded χ(2):χ(2) interactions can give rise to non-linear phase shifts which may be employed in an all-optical switch device [1]. Here we are concerned with a novel quasi-phase-matching scheme which relies on the fact that an asymmetric MQW waveguide has associated with it significant second-order susceptibility tensor components which are not present for a symmetric QW structure [2]. By periodically intermixing an asymmetric MQW waveguide along its length therefore, these second-order non-linearities can, in theory, be modulated to achieve domain-disordered quasi-phase-matching. In this paper we shall present experimental evidence to demonstrate the feasibility of realising such a device in GaAs/AlGaAs for operation at 1.55µm. Un-phase-matched second-harmonic conversion efficiencies have been observed for disordered and non-disordered waveguides which suggest that the nonlinearity associated with asymmetric QWs is significantly reduced by intermixing. Experimental results also indicate that the spatial resolution of the impurity-free vacancy diffusion (IFVD) QW intermixing process [3] used throughout this work is sufficient for first-order quasi-phase-matching of the second harmonic generation.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132528499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Higher-order quasi-solitons of an adapted dispersion profile 适应色散曲线的高阶准孤子

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nwe.4

C. Paré

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All-optical steering of spatial solitary-waves through cascading in KTP KTP中级联的空间孤立波全光导向

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.sac.2

G. Assanto, G. Leo, W. Torruellas, B. Lawrence, R. Fuerst, G. Stegeman

{"title":"All-optical steering of spatial solitary-waves through cascading in KTP","authors":"G. Assanto, G. Leo, W. Torruellas, B. Lawrence, R. Fuerst, G. Stegeman","doi":"10.1364/nlgw.1996.sac.2","DOIUrl":"https://doi.org/10.1364/nlgw.1996.sac.2","url":null,"abstract":"Solitary-waves of the quadratic nonlinearity have been recently revisited due to the renewed interest in coherent effects via second-order cascading [1-3] and the experimental observations of spatially confined field distributions in bulk KTP crystals. [4-5] Most investigations, however, have dealt primarily with such waves in the framework of scalar interactions between fields at the involved frequencies. [6-9] In this Communication we report on the angular steering of solitary waves formed in 2+1 dimensions through a vectorial or Type II Second Harmonic Generation (SHG) process in a bulk crystal of KTP. Steering was already observed with similar soliton-like waves in KTP by injecting a coherent SH seed of specified input phase.[5] On the contrary, we are able to control the beam lateral displacement after propagation by acting upon the relative intensities of two orthogonally-polarized input fields at the fundamental frequency (FF), i.e. without resorting to a phase controlled input at the second harmonic. Such an approach to phase-insensitive steering of two-dimensional solitary waves allows the implementation of reconfigurable interconnects through an input intensity imbalance at the (fundamental) frequency of relevance, eliminating the need for an additional (coherent) signal at the SH.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130247867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soliton-based RZ Transmission over Transoceanic Distances using Periodic Dispersion Compensation 利用周期性色散补偿的跨洋距离孤子RZ传输

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.fa.1

Masatoshi Suzuki

引用次数: 1

Nondegenerate Four-Wave Mixing in Tensile Strained MQW Semiconductor Optical Amplifier 拉伸应变MQW半导体光放大器中的非简并四波混频

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nsac4

A. Yamada, Yuko Yamaguchi, T. Otsubo, K. Miyagi, A. Taniguchi

引用次数: 0

Coupled-mode equations for deep quadratically nonlinear gratings 深二次非线性光栅的耦合模方程

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nsnps.p7

A. Arraf, C. D. de Sterke

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Waveguide SHG Device Using an Organic Crystal Isopropyl-4-acetylphenylurea 使用有机晶体异丙基-4-乙酰苯脲的波导SHG器件

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nfa22

Hironobu Yamamoto, T. Sugiyama, Jaehoon Jung, T. Kinoshita, K. Sasaki

引用次数: 0

Modulational instability induced by quadratic nonlinearities 二次非线性引起的调制不稳定性

Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nfa16

Paolo Ferro, S. Trillo, A. Buryak, Y. Kivshar

{"title":"Modulational instability induced by quadratic nonlinearities","authors":"Paolo Ferro, S. Trillo, A. Buryak, Y. Kivshar","doi":"10.1364/nlgw.1995.nfa16","DOIUrl":"https://doi.org/10.1364/nlgw.1995.nfa16","url":null,"abstract":"The large nonlinear phase shifts obtained with cascaded nonlinearities [1] has attracted renewed interest in the parametric interaction of a fundamental frequency (FF) beam with its doubled frequency (DF) [2]. A pure phase-shift, not accompanied by any energy transfer, may be achieved at any phase mismatch, by exploiting the nonlinear eigenmodes of the interaction [3,4]. These are symbiotic pair of phase-locked FF and DF cw’s which propagate without mutually exchanging energy but independently experiencing a nonlinear phase-shifts. Here we predict that when dispersion is taken into account this cw eigenmodes are subject to modulational instability (MI) [5]. This entails that two sideband pairs, equally detuned by the most unstable perturbation frequency from the FF and DF, may spontaneously grow from noise. MI is commonly believed to occur only in cubic media through four-photon interactions involving the decay of two pump photons into down and up-shifted photon twins. Conversely we anticipate that MI may occur with cascaded nonlinearity via combined three-photon processes. A photon at frequency 2ω0 produces a photon pair at frequencies (ω0 − Ω, ω0 + Ω), whereas photons at the sideband frequencies 2ω0 ± Ω are created by annhilating two photons at frequencies ω0 and ω0 ± Ω, respectively.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132847303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0