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dc.contributor.advisorLiu, Ming-Kangen_US
dc.contributor.authorYang, Zhiqiang, 1959-en_US
dc.creatorYang, Zhiqiang, 1959-en_US
dc.date.accessioned2013-04-03T13:16:42Z
dc.date.available2013-04-03T13:16:42Z
dc.date.issued1992en_US
dc.identifier.urihttp://hdl.handle.net/10150/278214
dc.description.abstractIn this thesis, a computer simulation has been done to evaluate the wavelength chirping and pulse broadening effects induced by the direct intensity modulation using Distributed Feedback (DFB) laser diodes. In the simulation, a DFB laser diode is driven by either square wave current pulses or pulses with a small current Step in the Leading Edge (SLE). A comparative study is performed to justify the effectiveness of using SLE waves in modulation to reduce wavelength chirping and pulse broadening. Numerical results from the single-mode rate equations show that the SLE wave modulation reduces the wavelength chirping and pulse broadening by a factor of 2. The optimal SLE pulse has a prepulse duration of 0.15 ns and a prepulse current level of 70.0 mA.
dc.language.isoen_USen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectEngineering, Electronics and Electrical.en_US
dc.titlePulse-shaping to reduce the chirping effects of DFB laser diodes and pulse broadeningen_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1350786en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.nameM.S.en_US
dc.identifier.bibrecord.b25469393en_US
refterms.dateFOA2018-08-15T13:15:10Z
html.description.abstractIn this thesis, a computer simulation has been done to evaluate the wavelength chirping and pulse broadening effects induced by the direct intensity modulation using Distributed Feedback (DFB) laser diodes. In the simulation, a DFB laser diode is driven by either square wave current pulses or pulses with a small current Step in the Leading Edge (SLE). A comparative study is performed to justify the effectiveness of using SLE waves in modulation to reduce wavelength chirping and pulse broadening. Numerical results from the single-mode rate equations show that the SLE wave modulation reduces the wavelength chirping and pulse broadening by a factor of 2. The optimal SLE pulse has a prepulse duration of 0.15 ns and a prepulse current level of 70.0 mA.


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