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Nonlinear Guided Waves and Their Applications最新文献

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A New Method to Treat Second-order Nonlinear Optical Interactions in Nonlinear Medium With Periodical Structure 周期结构非线性介质中二阶非线性光相互作用的一种新方法
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nfa18
C. Xu, H. Okayama, M. Kawahara
{"title":"A New Method to Treat Second-order Nonlinear Optical Interactions in Nonlinear Medium With Periodical Structure","authors":"C. Xu, H. Okayama, M. Kawahara","doi":"10.1364/nlgw.1995.nfa18","DOIUrl":"https://doi.org/10.1364/nlgw.1995.nfa18","url":null,"abstract":"Difference frequency generation (DFG) and second harmonic generation (SHG) in nonlinear medium with a periodical structure have attracted much attention, because of their potential applications in optical communication systems [1] and optical information processes [2]. Since all the three wavelengths involved in DFG can be in transparence region of semiconductors, semiconductor DFG devices such as AlGaAs, usually have large nonlinearity and small band-gap, are peculiar interesting. In the periodical structure, linear and nonlinear optical parameter modulations as well as propagation loss are usually very important to conversion efficiency. Although theoretical analyses that involve linear and nonlinear optical parameter modulations have been carried out extensively for SHG[3]~[6], little work has been reported for DFG [7].","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"15 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":"126024719","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
Walking Spatial Solitons in Nonlinear Quadratic Media 非线性二次介质中的行走空间孤子
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.fd.2
L. Torner, D. Mazilu, D. Mihalache
{"title":"Walking Spatial Solitons in Nonlinear Quadratic Media","authors":"L. Torner, D. Mazilu, D. Mihalache","doi":"10.1364/nlgw.1996.fd.2","DOIUrl":"https://doi.org/10.1364/nlgw.1996.fd.2","url":null,"abstract":"Both, spatial and temporal solitons (more properly, solitary waves) exist in bulk crystals and in optical waveguides made of nonlinear quadratic media [1]-[3]. Bright spatial solitons have been already observed in second harmonic generation experiments [4]-[5]. Families of stationary soliton solutions of the governing are known to exist under ideal conditions, namely when there is no walk-off betwen the interacting waves [2]-[3]. Temporal walk-off is due to different group velocities of the waves forming the soliton, while spatial beam walk-off is due to different propagation directions of energy and phase fronts in anisotropic media. Beam walk-off is always present in the experiments when birefringence-tuning phase-matching techniques are used. Numerical experiments indicate that solitonlike propagation occurs in the presence of walk-off [2], but physically relevant soliton solutions are not known at present.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"28 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":"126089421","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
Squeezed Vacuum Generation using a Quasiphasematched LiNbO3 Waveguide Parametric Amplifier 利用准相位匹配LiNbO3波导参量放大器产生压缩真空
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.pd6
D. Serkland, M. Fejer, R. Byer, Y. Yamamoto
{"title":"Squeezed Vacuum Generation using a Quasiphasematched LiNbO3 Waveguide Parametric Amplifier","authors":"D. Serkland, M. Fejer, R. Byer, Y. Yamamoto","doi":"10.1364/nlgw.1995.pd6","DOIUrl":"https://doi.org/10.1364/nlgw.1995.pd6","url":null,"abstract":"We have measured phase-sensitive amplification and quadrature squeezing using a quasiphasematched LiNbO3 waveguide degenerate parametric amplifier. We observed a 14% reduction in the noise in one quadrature, compared to the vacuum state, which is in quantitative agreement with our phase-sensitive amplification measurements.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"1 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":"122797489","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
Oscillating solutions of the multidimensional nonlinear Schroedinger equation 多维非线性薛定谔方程的振动解
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nsnps.p5
S. Chávez-Cerda, M. Meneses-Nava, V. Sanchez-Villicaña, J. Sánchez-Mondragón
{"title":"Oscillating solutions of the multidimensional nonlinear Schroedinger equation","authors":"S. Chávez-Cerda, M. Meneses-Nava, V. Sanchez-Villicaña, J. Sánchez-Mondragón","doi":"10.1364/nlgw.1998.nsnps.p5","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nsnps.p5","url":null,"abstract":"We show analytically that there can exist oscillating bound states of the multidimensional nonlinear Schroedinger equations with Kerr and saturable nonlinearity which are breather-like solutions. The solutions have a rare peculiarity, the oscillating behavior takes place between the widths, with the amplitude kept almost constant. We confirm numerically our results.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"185 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":"122809618","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
Active Polarization Converter in AlGaAs AlGaAs有源极化变换器
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nthe.17
M. Fontaine
{"title":"Active Polarization Converter in AlGaAs","authors":"M. Fontaine","doi":"10.1364/nlgw.1998.nthe.17","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nthe.17","url":null,"abstract":"Asymmetric AlGaAs waveguides working in a cross-phase modulation regime and operated at photon energies below the band gap could be promising for the design of active TE-TM polarization converters. Crucially important for devices with asymmetrical cross-section is the orientation of the optical axes to maximize the TE-TM conversion. For [100] oriented AlGaAs angle-facet rib-waveguides, it is seen that the rotation of the polarization state is optimized if one optical axis of the device is aligned closed to the 45° polarization-maintaining axis in the bulk medium. The design of such a waveguide is illustrated at Fig. 1.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"27 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":"129519921","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
One-dimensional quadratic walking solitons in lithium niobate planar waveguides 铌酸锂平面波导中的一维二次行走孤子
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nfd.2
Y. Baek, R. Schiek, G. Stegeman
{"title":"One-dimensional quadratic walking solitons in lithium niobate planar waveguides","authors":"Y. Baek, R. Schiek, G. Stegeman","doi":"10.1364/nlgw.1998.nfd.2","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nfd.2","url":null,"abstract":"Quadratic solitons were observed a few years ago during second harmonic generation in both bulk crystals (2D) and planar waveguides (1D)[1,2]. They consist of strongly coupled fundamental and harmonic fields which propagate locked together in space without diffraction due to a combination of the cascaded nonlinearity and the strong inter-beam coupling inherent in SHG.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"3 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":"129774345","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
Plethora of soliton-like pulses in passively mode-locked fiber lasers 被动锁模光纤激光器中过多的类孤子脉冲
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.sad.10
N. Akhmediev, J. Soto-Crespo
{"title":"Plethora of soliton-like pulses in passively mode-locked fiber lasers","authors":"N. Akhmediev, J. Soto-Crespo","doi":"10.1364/nlgw.1996.sad.10","DOIUrl":"https://doi.org/10.1364/nlgw.1996.sad.10","url":null,"abstract":"There is a great interest in soliton generation in actively and passively mode-locked fiber lasers [1, 2, 3, 4]. The mode-locked soliton fiber lasers can generate pulses with a wide range of durations, pulse powers, and repetition rates. Theoretical studies of the soliton fiber lasers are based on the complex Ginzburg-Landau (CGLE). Different forms of this have been used, including the cubic GLE [5], cubic CGLE with saturation [6, 7], quintic CGLE [8, 9, 10, 11, 12], and more complicated models. All these models (except the cubic CGLE without saturation) have solutions in the form of stable pulses. In this study we have found two new forms of pulse-like solutions which have been missed in previous works. In particular, we discover that besides the well-known solution in the form of bell-shaped pulse (plain pulse), and two other forms found in [13], the quintic CGLE has two additional branches of stable stationary solutions in the form of wide composite pulses with a dual-frequency spectrum. These two solutions can co-exist with known pulses but exist for a narrower range of value of the parameters.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"38 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":"130546896","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
Measurement of the non-uniformity of the wave-vector mismatch in waveguides for second-harmonic generation 测量用于二次谐波发生的波导中波矢量失配的不均匀性
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nfa.5
R. Schiek, H. Fang, C. Treviño-Palacios, G. Stegeman
{"title":"Measurement of the non-uniformity of the wave-vector mismatch in waveguides for second-harmonic generation","authors":"R. Schiek, H. Fang, C. Treviño-Palacios, G. Stegeman","doi":"10.1364/nlgw.1998.nfa.5","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nfa.5","url":null,"abstract":"For maximum second-harmonic generation (SHG) in a non-linear crystal\u0000 the wave-vector mismatch along the interaction length should be\u0000 uniform. However, in some applications a non-uniform wave vector\u0000 mismatch along the propagation distance improves the performance. For\u0000 example, in quasi-phasematched (QPM) waveguides with variably-spaced\u0000 phase-reversed QPM gratings the acceptance bandwidth for SHG was\u0000 increased. Recently, intensity-dependent phase shifts of the\u0000 fundamental due to the cascaded second-order nonlinearity in SHG were\u0000 observed. Due to a non-uniform wave-vector mismatch large fundamental\u0000 phase shifts were measured in regions of negligible fundamental\u0000 depletion with low wavelength and temperature depencence. Here, we\u0000 report on measurements of the non-uniformity of the wave-vector in\u0000 waveguides for SHG.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"13 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":"127042458","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: 2
Interconversion of Optical Solitons 光孤子的相互转换
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nfa2
E. Vanin, A. Sergeev, M. Lisak, M. Quiroga-Teixeiro, D. Anderson
{"title":"Interconversion of Optical Solitons","authors":"E. Vanin, A. Sergeev, M. Lisak, M. Quiroga-Teixeiro, D. Anderson","doi":"10.1364/nlgw.1995.nfa2","DOIUrl":"https://doi.org/10.1364/nlgw.1995.nfa2","url":null,"abstract":"One of the fundamental areas of laser physics, which for a long time has attracted a strong interest, is the interaction of ultra-short laser pulses with nonlinear active media. Recently, this interest has been stimulated by the fast progress in the development of techniques for generation of femtosecond laser pulses [1]. An important theoretical question in connection with this application is the discovery of solitary wave pulse structures and the concomitant analysis of their stability. A number of physical parameters, possibly obtaining in the experiment, caused a different points of view on this problem. In ref.[2] the Ginzburg-Landau equation was considered to describe additive pulse mode-locking structures and the stability of stationary pulses was investigated. This equation is the generalization of the nonlinear Shrödinger (NLS) and describes laser pulse propagation in an active medium with group velocity (GVD), gain dispersion, Kerr nonlinearity of the refractive index, and intensity dependent losses. Another extended version of the NLS equation was considered in ref.[3,4]. This equation describes a medium with broad band gain, GVD, Kerr nonlinearity, and nonlinear saturable amplification. A new dissipative optical soliton was discovered in ref.[4]. The dissipative optical solitons have a stationary intensity profile and a permanently shifting frequency, because their existence is made possible by a balance between GVD and nonlinear saturable gain. Moreover, these solitons can become trapped at the zero-dispersion point due to the self-frequency shift, if this point where the maximum of the group velocity is reached is located inside the gain band [5]. Obviously, both effects can be considered together and new solitary wave structures having the features of both additive pulse mode-locking structures and dissipative optical solitons can be obtained. However before doing this it is useful to investigate the influence of another factors on the dissipative optical solitons.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"1 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":"116224006","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
Rotating Ring Bright Solitons 旋转环亮孤子
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nsad4
V. V. Afanasjev
{"title":"Rotating Ring Bright Solitons","authors":"V. V. Afanasjev","doi":"10.1364/nlgw.1995.nsad4","DOIUrl":"https://doi.org/10.1364/nlgw.1995.nsad4","url":null,"abstract":"Optical solitons have been observed experimentally for the first time as temporal solitons in optical fibers and then as spatial solitons — self-trapped beams [1-3]. As the circular-symmetry beam in a Kerr medium is unstable displaying blow-up and collapse, spatial solitons have been observed in bulk media as soliton strips or in planar waveguide geometries.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"49 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":"121661045","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
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