Abstract:Results of spectral measurements of a = 1.5 µm quaternary laser diodes are presented. With regards to frequency chirp, frequency drift and emission bandwidth quite often considerable discrepancies have been observed between measured values and theoretical predictions of numerical laser modelling.Besides the well known tendency of DFB lasers to exhibit mode jumps or poor side mode suppression ratio depending on the fact reflection phase and magnitude sometimes a nonmonotonous dependance of the emission frequenc… Show more
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