Mode transitions in distributed-feedback tapered master-oscillator power-amplifier: theory and experiments
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- Radziunas, M., Tronciu, V.Z., Bandelow, U. et al. Opt Quant Electron (2008) 40: 1103. doi:10.1007/s11082-009-9308-z
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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.