Distorsion i halvledarlasrar avsedda för kommunikation över korta avstånd

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dc.contributor.authorHaglund, Emanuel P.
dc.contributor.authorEliasson, Henrik
dc.contributor.authorFülöp, Attila
dc.contributor.authorWohlén, Andreas
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mikroteknologi och nanovetenskapsv
dc.contributor.departmentChalmers University of Technology / Department of Microtechnology and Nanoscienceen
dc.date.accessioned2019-07-03T13:35:22Z
dc.date.available2019-07-03T13:35:22Z
dc.date.issued2011
dc.description.abstractNonlinearities for four different laser configurations have been measured and compared, one DFB laser, one laser modulated externally with a Mach-Zehnder modulator, one VCSEL made at Chalmers and one commercially produced VCSEL. Measurements and analysis of second order harmonic distortion (HD2) and third order intermodulation distortion (IMD3) has been performed. From the results of the measurement, spurious free dynamic range (SFDR) has been calculated and compared. In particular: the VCSEL built at Chalmers has been compared to the commercially produced one. Out of these two, the one made at Chalmers showed better values for SFDR. The behavior of lasers has been analyzed from a theoretical model with third order Taylor series and rate equations. The laser built at Chalmers has been computer simulated from its DC-characteristics and the results from the computer simulation have been compared to the experimental values. It turned out that the laser had a more linear behavior when modulated with high frequency signals than DC-supply.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/210421
dc.language.isoswe
dc.setspec.uppsokPhysicsChemistryMaths
dc.subjectFotonik
dc.subjectInformations- och kommunikationsteknik
dc.subjectNanovetenskap och nanoteknik
dc.subjectPhotonics
dc.subjectInformation & Communication Technology
dc.subjectNanoscience & Nanotechnology
dc.titleDistorsion i halvledarlasrar avsedda för kommunikation över korta avstånd
dc.type.degreeExamensarbete för kandidatexamensv
dc.type.degreeBachelor Thesisen
dc.type.uppsokM2
local.programmeEngineering Physics (300 hp)
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