### Analysis of semiconductor laser nonlinearity.

FieldValue
dc.contributor.authorBiswas, Tapan Kanti.
dc.date.accessioned2009-03-23T16:01:17Z
dc.date.available2009-03-23T16:01:17Z
dc.date.created1991
dc.date.issued1991
dc.identifier.citationSource: Masters Abstracts International, Volume: 31-01, page: 0385.
dc.identifier.isbn9780315680159
dc.identifier.urihttp://hdl.handle.net/10393/7648
dc.identifier.urihttp://dx.doi.org/10.20381/ruor-6896
dc.description.abstractIn this thesis a theoretical model of laser nonlinearity is analysed and the intermodulation noise is calculated. The large-signal-model of the laser rate equations is used in the analysis. An output-to-input approach is used to obtain a general system equation for the laser and then Volterra series expansion is applied to the system equation to obtain system transfer functions. First, the nth-order Volterra transfer functions, \$G\sb{n}\$(\$w\sb1\$, ...,\$w\sb{n}\$), from output to input are calculated. Then, based on harmonic balance the forward Volterra transfer functions, \$F\sb{n}\$(\$w\sb1\$, ...,\$w\sb{n}\$), are calculated from \$G\sb{n}\$(\$w\sb1\$, ...,\$w\sb{n}\$), and these \$F\sb{n}\$(\$w\sb1\$, ...,\$w\sb{n}\$), are used to model the frequency dependent form input-to-output nonlinearities of the laser. The theoretical models for second harmonic (2HD), third harmonic (3HD) and third-order intermodulation (IMD) distortions are expressed in terms of signal frequency, optical modulation depth and laser parameters. Using the Mircea-Sinnreich equations, intermodulation spectra are computed. Harmonic distortions and third-order intermodulation distortion for various carrier (C) levels have been computed and variations of 2HD/C, 3HD/C and IMD/C with frequency and D.C. bias are shown graphically. This system analysis are compared with previously published results and a good agreement is found. (Abstract shortened by UMI.)
dc.format.extent126 p.