Show simple item record

Měření amplitudy a fáze ultrakrátkých optických impulsů s využitím nelineárních jevů v optických vláknech
dc.contributor.advisorKaňka, Jiří
dc.creatorVraný, Boleslav
dc.date.accessioned2018-11-30T14:33:55Z
dc.date.available2018-11-30T14:33:55Z
dc.date.issued2010
dc.identifier.urihttp://hdl.handle.net/20.500.11956/31606
dc.description.abstractI confirm that I worked out this doctoral thesis independently and that I quoted all the literature used. Prohlašuji, že jsem tuto dizertační práci vypracoval samostatně a že jsem uvedl veš- kerou použitou literaturu. V Praze dne 21. 6. 2010 Abstract The thesis deals with the Frequency-Resolved Optical Gating (FROG) method of mea- suring ultrashort optical pulses. As a nonlinear process involved in the method we used cross-phase modulation in a microstructured optical fiber. The FROG device made of fi- ber pigtailed components fitted well the needs of our fiber optical laboratory. The output of the measurement differs significantly from FROG methods that use other nonlinear processes like second harmonic generation. For our FROG, the standard algorithms for reconstruction of the complex envelope from measured spectrogram failed. We therefore used a more robust genetic algorithm (GA) for the reconstruction. GA has several pa- rameters that affect its runs and we explored the influence of these parameters on the success of reconstruction of a number of test pulses and found the optimal set of these parameters. In this work, we present a general discussion of the FROG method and the standard reconstruction algorithms, the experimental setup we used, a discussion of the genetic algorithm, the technical details of our...en_US
dc.languageEnglishcs_CZ
dc.language.isoen_US
dc.publisherUniverzita Karlova, Matematicko-fyzikální fakultacs_CZ
dc.titleMeasurement of amplitude and phase of ultrashort optical pulses by using nonlinear processes in optical fibresen_US
dc.typedizertační prácecs_CZ
dcterms.created2010
dcterms.dateAccepted2010-09-22
dc.description.departmentÚstav fotoniky a elektroniky AV ČR, v.v.i.cs_CZ
dc.description.facultyFaculty of Mathematics and Physicsen_US
dc.description.facultyMatematicko-fyzikální fakultacs_CZ
dc.identifier.repId39862
dc.title.translatedMěření amplitudy a fáze ultrakrátkých optických impulsů s využitím nelineárních jevů v optických vláknechcs_CZ
dc.contributor.refereeKarásek, Miroslav
dc.contributor.refereeBoháč, Leoš
dc.identifier.aleph001396873
thesis.degree.namePh.D.
thesis.degree.leveldoktorskécs_CZ
thesis.degree.disciplineKvantová optika a optoelektronikacs_CZ
thesis.degree.disciplineQuantum Optics and Optoelectronicsen_US
thesis.degree.programPhysicsen_US
thesis.degree.programFyzikacs_CZ
uk.faculty-name.csMatematicko-fyzikální fakultacs_CZ
uk.faculty-name.enFaculty of Mathematics and Physicsen_US
uk.faculty-abbr.csMFFcs_CZ
uk.degree-discipline.csKvantová optika a optoelektronikacs_CZ
uk.degree-discipline.enQuantum Optics and Optoelectronicsen_US
uk.degree-program.csFyzikacs_CZ
uk.degree-program.enPhysicsen_US
thesis.grade.csProspěl/acs_CZ
thesis.grade.enPassen_US
uk.abstract.enI confirm that I worked out this doctoral thesis independently and that I quoted all the literature used. Prohlašuji, že jsem tuto dizertační práci vypracoval samostatně a že jsem uvedl veš- kerou použitou literaturu. V Praze dne 21. 6. 2010 Abstract The thesis deals with the Frequency-Resolved Optical Gating (FROG) method of mea- suring ultrashort optical pulses. As a nonlinear process involved in the method we used cross-phase modulation in a microstructured optical fiber. The FROG device made of fi- ber pigtailed components fitted well the needs of our fiber optical laboratory. The output of the measurement differs significantly from FROG methods that use other nonlinear processes like second harmonic generation. For our FROG, the standard algorithms for reconstruction of the complex envelope from measured spectrogram failed. We therefore used a more robust genetic algorithm (GA) for the reconstruction. GA has several pa- rameters that affect its runs and we explored the influence of these parameters on the success of reconstruction of a number of test pulses and found the optimal set of these parameters. In this work, we present a general discussion of the FROG method and the standard reconstruction algorithms, the experimental setup we used, a discussion of the genetic algorithm, the technical details of our...en_US
uk.file-availabilityV
uk.publication-placePrahacs_CZ
uk.grantorUniverzita Karlova, Matematicko-fyzikální fakulta, Ústav fotoniky a elektroniky AV ČR, v.v.i.cs_CZ
thesis.grade.codeP


Files in this item

Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record


© 2017 Univerzita Karlova, Ústřední knihovna, Ovocný trh 3-5, 116 36 Praha; email: dspace (at) is.cuni.cz

Za dodržení všech ustanovení autorského zákona jsou zodpovědné jednotlivé složky Univerzity Karlovy. / Each constituent part of Charles University is responsible for adherence to all provisions of the copyright law.

Upozornění / Notice: Získané informace nemohou být použity k výdělečným účelům nebo vydávány za studijní, vědeckou nebo jinou tvůrčí činnost jiné osoby než autora. / Any retrieved information shall not be used for any commercial purposes or claimed as results of studying, scientific or any other creative activities of any person other than the author.

DSpace software copyright © 2002-2015  DuraSpace
Theme by 
@mire NV