WIAS Preprint No. 1366, (2008)

Mode transitions in distributed-feedback tapered master-oscillator power-amplifier


  • Radziunas, Mindaugas
    ORCID: 0000-0003-0306-1266
  • Tronciu, Vasile Z.
  • Bandelow, Uwe
    ORCID: 0000-0003-3677-2347
  • Lichtner, Mark
  • Spreemann, Martin
  • Wenzel, Hans
    ORCID: 0000-0003-1726-0223

2010 Mathematics Subject Classification

  • 35Q60 37L15

2008 Physics and Astronomy Classification Scheme

  • 42.55.Px 42.65.Sf


  • master oscillator, power amplifier, taper, longitudinal mode analysis




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.

Appeared in

  • Opt. Quantum Electron., 40 (2008) pp. 1103-1109.

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