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Nonlinear Guided Waves and Their Applications最新文献

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Phase-locking and periodic evolution of solitons in passively mode-locked fiber lasers with slow saturable absorber 慢饱和吸收被动锁模光纤激光器中孤子的锁相和周期演化
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nthe.9
J. Soto-Crespo, N. Akhmediev
{"title":"Phase-locking and periodic evolution of solitons in passively mode-locked fiber lasers with slow saturable absorber","authors":"J. Soto-Crespo, N. Akhmediev","doi":"10.1364/nlgw.1998.nthe.9","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nthe.9","url":null,"abstract":"Passively mode-locked fiber lasers [1-6] are a unique source of solitons for telecommunications. Ultra-short pulse generation in laser systems is based on a variety of schemes including figure of eight fiber laser design [1], fast saturable absorber [3], coupled cavity [5], additive pulse mode-locking [6] and nonlinear polarization rotation [7,8]. The use of a semiconductor mirror-saturable absorber has been suggested for a passively mode-locked soliton laser [9] and its experimental verification has been reported in [10].","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"48 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":"116122992","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
Transverse Instabilities of Higher-Order Spatial Solitons in Quadratic Nonlinear Media 二次非线性介质中高阶空间孤子的横向不稳定性
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nfd.5
D. Skryabin, W. Firth
{"title":"Transverse Instabilities of Higher-Order Spatial Solitons in Quadratic Nonlinear Media","authors":"D. Skryabin, W. Firth","doi":"10.1364/nlgw.1998.nfd.5","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nfd.5","url":null,"abstract":"Stationary ring structures exist in χ(2) media. Most fragment: we calculate the daughter solitons’ escape speed analytically. Surprisingly, some implode, preserving cylindrical symmetry.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"30 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":"115175696","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
Polarised dark solitons and their interactions 极化暗孤子及其相互作用
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.sac.4
A. Sheppard, Y. Kivshar
{"title":"Polarised dark solitons and their interactions","authors":"A. Sheppard, Y. Kivshar","doi":"10.1364/nlgw.1996.sac.4","DOIUrl":"https://doi.org/10.1364/nlgw.1996.sac.4","url":null,"abstract":"Since their prediction and discovery more than twenty years ago, optical solitons have received ever increasing attention from the research community. Temporally confined solitons propagating as pulses in optical fibres have been used in experimental transmission systems and are touted for the next generation of transoceanic cables [1]. More futuristically, nonlinear switches that rely on the interaction between spatially confined solitons are being investigated in a variety of media [2]. Topological solitons, also known as kink or dark solitons, typically appear as a localised intensity dip on a finite background [3], and like their bright counterparts, have been observed in fibres [4] and bulk materials [5]. They are generally more robust than bright solitons and have been the object of recent research considering the influence of polarisation [6,7].","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"40 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":"121153614","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
Solitary Waves and Ring-Formation in Polydiacetylene para-Toluene Sulfonate 聚二乙炔对甲苯磺酸盐中的孤波和环的形成
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.sud.5
B. Lawrence, W. Torruellas, G. Stegeman
{"title":"Solitary Waves and Ring-Formation in Polydiacetylene para-Toluene Sulfonate","authors":"B. Lawrence, W. Torruellas, G. Stegeman","doi":"10.1364/nlgw.1996.sud.5","DOIUrl":"https://doi.org/10.1364/nlgw.1996.sud.5","url":null,"abstract":"Spatial solitary waves propagate in a nonlinear medium by balancing diffraction with a self-focusing nonlinearity. These waves are of fundamental interest, but are also of technological interest if they are stable under propagation. For diffraction in one transverse dimension (ID) a Kerr nonlinearity is sufficient to form stable beams.[1] However, a Kerr nonlinearity does not lead to stable self-trapping in two transverse dimensions (2D).[2] Methods proposed for stabilizing 2D beams have included saturating mechanisms and quintic nonlinearities. [3,4] Until recently, self-trapped beams had only been observed in vapor systems.[5] Current progress in cascaded second-order nonlinear systems has also demonstrated self-trapped beams, which tend to mimic a saturating nonlinearity. [6] However, our recent measurements indicated that polydiacetylene para-toluene sulfonate (PTS) has n2>0 and n3<0 with low linear loss and negligible nonlinear loss at 1600 nm.[7] We now report preliminary experimental demonstrations of 2D spatial solitary waves and ring formation in PTS. The results are supported by numerical simulations of beam propagation in PTS, using measured values for n2 and n3, interpreted in the context of the variational model of nonlinear Gaussian beam propagation. These results confirm, for the first time, the existence of the combination of a third-order and a fifth-order nonlinearity, independent of saturation, in a solid-state material, and the ability of this material to support stable self-trapped beams.","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":"123534265","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
Frequency-resolved optical gating at 1.5 μm using the Kerr nonlinearity in optical fibres 利用光纤中的克尔非线性实现1.5 μm的频率分辨光门控
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.pd.3
M. Thomson, J. Dudley, L. Barry, J. Harvey
{"title":"Frequency-resolved optical gating at 1.5 μm using the Kerr nonlinearity in optical fibres","authors":"M. Thomson, J. Dudley, L. Barry, J. Harvey","doi":"10.1364/nlgw.1998.pd.3","DOIUrl":"https://doi.org/10.1364/nlgw.1998.pd.3","url":null,"abstract":"Frequency-resolved optical gating (FROG) is rapidly becoming a routine measurement technique for the characterisation of ultrashort light pulses, and a number of different experimental schemes based on nonlinear processes in bulk materials have been demonstrated [1]. As the use of FROG becomes more widespread, there will be increasing demand for additional convenient geometries for particular experimental applications. In this paper, we use the Kerr nonlinearity in 20 m of dispersion-shifted fibre as the nonlinear process for a novel Fibre-FROG geometry, and characterise the intensity and phase of picosecond pulses around 1.5 μm. The results are found to be in excellent agreement with results obtained using a standard second-harmonic generation (SHG) FROG technique.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"14 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":"123677894","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
Optimal use of the Raman effect for transmission of narrow solitons through sliding-frequency filters 通过滑动频率滤波器传输窄孤子的拉曼效应的最佳利用
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.sad.11
B. Malomed, R. Tasgal
{"title":"Optimal use of the Raman effect for transmission of narrow solitons through sliding-frequency filters","authors":"B. Malomed, R. Tasgal","doi":"10.1364/nlgw.1996.sad.11","DOIUrl":"https://doi.org/10.1364/nlgw.1996.sad.11","url":null,"abstract":"Sliding-frequency filters (SFFs) are currently the most standard and proven means of suppressing the degrading effect of the Gordon-Haus jitter on data transmission in soliton-based optical communication systems. In the current state of technology, solitons are usually broad enough (10-20 ps) so that the Raman effect is insignificant; but for shorter solitons (which can support a greater bit-rate), the Raman effect, scaling as (width)-4, more strongly than the non-Raman effects, becomes significant. The Raman effect shifts (downward) a soliton’s frequency, one of the SFF’s essential tasks. We therefore conjecture that if the SFF’s frequency ramp and the Raman frequency-sliding rate are properly matched, the frequency-sliding of narrow solitons can be generated by the Raman effect, and the SFF, liberated from its task of generating the solitons’ frequency-sliding, may be chosen to minimize unnecessary SFF-associated losses, minimizing the (detrimental) compensatory gain and degradation of the signal.","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":"124093132","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
Cascadable rms characteristics and average dynamic of pulses in dispersive nonlinear lossy fibers 色散非线性损耗光纤中脉冲的级联有效值特性和平均动态
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nsnps.p8
N. Bélanger, P. Bélanger
{"title":"Cascadable rms characteristics and average dynamic of pulses in dispersive nonlinear lossy fibers","authors":"N. Bélanger, P. Bélanger","doi":"10.1364/nlgw.1998.nsnps.p8","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nsnps.p8","url":null,"abstract":"More accurate equations describing the propagation law of the three rms parameters in average- soliton regime are presented. These equations are cascadable from a piece of fiber to another making them useful for designing dispersion maps. Finally, the average soliton dynamic is generalized to any pulse shape even if the hyperbolic secant seems to be the optimal case.","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":"128834819","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
Bistable Solitary Waves and Switching Waves with a Hexagonal Pattern in Semiconductor Planar Resonators 半导体平面谐振器中具有六角形图案的双稳孤立波和开关波
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1996.fd.14
D. Michaelis, U. Peschel, F. Lederer
{"title":"Bistable Solitary Waves and Switching Waves with a Hexagonal Pattern in Semiconductor Planar Resonators","authors":"D. Michaelis, U. Peschel, F. Lederer","doi":"10.1364/nlgw.1996.fd.14","DOIUrl":"https://doi.org/10.1364/nlgw.1996.fd.14","url":null,"abstract":"Since many years it is well-known that planar resonators filled with a nonlinear material may exhibit bistability and various kinds of instabilities [1]. Two-dimensional patterns and stationary localized structures (SLS) could be observed provided that transverse effects were taken into account. SLS attract a great deal of interest because it is believed that their particle-like behavior can be potentially exploited in future data processing and storage systems. SLS were found in media with saturable dispersive focusing as well as saturable absorptive nonlinearities [2,3]. Hitherto, it is common believe that in dispersive defocusing media only switching waves rather than SLS may exist. Unfortunately, highly nonlinear materials, as e.g. semiconductors operated near the band gap exhibit a defocusing nonlinearity. The aim of this paper is to show that even in these materials SLS are allowed to exist due to an interplay of transverse effects (diffraction, diffusion), saturation and nonlinearity.","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":"131093484","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
Domination of ‘neck’ instability over ‘snake’ one in type II second harmonic generation II型二次谐波中“颈部”不稳定性优于“蛇形”不稳定性
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1998.nsnps.p13
D. Skryabin, W. Firth
{"title":"Domination of ‘neck’ instability over ‘snake’ one in type II second harmonic generation","authors":"D. Skryabin, W. Firth","doi":"10.1364/nlgw.1998.nsnps.p13","DOIUrl":"https://doi.org/10.1364/nlgw.1998.nsnps.p13","url":null,"abstract":"We investigate modulational instability (MI) of 1-dimensional\u0000 three-wave parametric solitons in presence of normal group velocity\u0000 dispersion. In particular, we show that the ‘snake’ instability is\u0000 strongly suppressed by the ‘neck’ one. This result is in a sharp\u0000 contrast with previously studied MI in Kerr and type I quadratic\u0000 media.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"12 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":"130464943","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
A Numerical Study of Soliton Bit-Streams in a WDM Communication System WDM通信系统中孤子比特流的数值研究
Nonlinear Guided Waves and Their Applications Pub Date : 1900-01-01 DOI: 10.1364/nlgw.1995.nsab4
A. Boardman, H. Mehta, R.C.J. Putman, A. K. Sangarpaul, M. Wilkins, K. Xie
{"title":"A Numerical Study of Soliton Bit-Streams in a WDM Communication System","authors":"A. Boardman, H. Mehta, R.C.J. Putman, A. K. Sangarpaul, M. Wilkins, K. Xie","doi":"10.1364/nlgw.1995.nsab4","DOIUrl":"https://doi.org/10.1364/nlgw.1995.nsab4","url":null,"abstract":"To date, relatively few papers have been published on the subject of WDM (Wavelength Division Multiplexing) as applied to a soliton communication system[1-8]. However, with the advent of TDM, (Time Division Multiplexing) and considering the effects of Gordon-Haus jitter, the bit repetition rate limit can be reached even for short pulse widths and it is now natural to look for methods of increasing the information throughput with different frequency bit-streams.","PeriodicalId":262564,"journal":{"name":"Nonlinear Guided Waves and Their Applications","volume":"57 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":"128251530","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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