, Volume 40, Issue 14-15, pp 1103-1109
Date: 20 May 2009

Mode transitions in distributed-feedback tapered master-oscillator power-amplifier: theory and experiments

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Theoretical and experimental investigations have been carried out to study the spectral and spatial behavior of monolithically integrated distributed-feedback tapered master-oscillators power-amplifiers emitting around 973 nm. Introduction of self and cross heating effects and the analysis of longitudinal optical modes allows us to explain experimental results. The results show a good qualitative agreement between measured and calculated characteristics.