{"title":"SOLITON PROPAGATION IN SATURABLE NONLINEAR FIBRE COUPLERS — VARIATIONAL AND NUMERICAL RESULTS","authors":"G. Peng, P. Chu, A. Ankiewicz","doi":"10.1142/S0218199194000080","DOIUrl":"https://doi.org/10.1142/S0218199194000080","url":null,"abstract":"The problem of optical soliton propagation in couplers with saturation of nonlinear refractive index is investigated using a simple variational approach. From this study, important features relating to optical switching and soliton eigen-states are revealed. For instance, a parameter, γmax, which characterizes the limiting effect of saturation in optical switching, is identified. We carry out numerical solutions to the problem and confirm that the approximate approach does give results agreeing with those from the simulation.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"03 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":"131049980","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}
A. Knoesen, N. Molau, D. Yankelevich, M. Mortazavi, A. Dienes
{"title":"CORONA-POLED NONLINEAR POLYMERIC FILMS: IN SITU ELECTRIC FIELD MEASUREMENT, CHARACTERIZATION AND ULTRASHORT-PULSE APPLICATIONS","authors":"A. Knoesen, N. Molau, D. Yankelevich, M. Mortazavi, A. Dienes","doi":"10.1142/S0218199192000054","DOIUrl":"https://doi.org/10.1142/S0218199192000054","url":null,"abstract":"Electric poling at field intensities approaching the dielectric strength of the film is possible with corona poling. Polymeric thin films with large second-order nonlinearities can be created with this poling technique. In this paper, the corona poling of nonlinear polymeric films at elevated temperatures, processing, characterization and possible ultrashort-pulse applications are reviewed. An experimental technique is presented to measure the electric field during poling of the nonlinear polymeric film. The characterization of orientational order in corona-poled nonlinear polymeric films and the effects associated with the large electric field during poling are discussed. Poled polymeric thin films are uniquely suited for second-order nonlinear optical applications of ultrashort pulses (< 50 fsec) since minimal pulse spreading occurs. The sum-frequency ultrashort-pulse application of nonlinear polymeric thin films and limitations of the thin polymeric films are discussed. Experimental results are presented of a side-chain nonlinear polymer that is ideally suited for ultrashort-pulse applications.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"87 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":"124805475","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}