Improving the stability of distributed-feedback tapered master-oscillator power-amplifiers
V.Z. Tronciu1, M. Lichtner1, M. Radziunas1, U. Bandelow1, H. Wenzel2
Published in:
9th Int. Conf. on Numerical Simulation of Optoelectronic Devices (NUSOD 2009), Gwangju, Republic of Korea, Sep. 14-17, pp. 55-56 (2009).
Abstract:
We consider theoretically the lasing properties of distributed-feedback master-oscillator power-amplifiers which are compact semiconductor laser devices capable of emitting a high brilliance beam at an optical power of several Watts. Based on a traveling wave equation model we calculate emitted optical power and spectral maps for increasing current injections of the power amplifier. We show that a proper choice of the Bragg grating allows to optimize the laser operation, so that the laser emits a high intensity continuous wave beam and shows no previously observed mode jumps or dynamic instabilities when injection currents are tuned.
1 Weierstrass Institute for Applied Analysis and Stochastics, Mohrenstr. 39, 10117 Berlin, Germany
2 Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Strasse 4, D-12489 Berlin, Germany
© 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Full version in pdf-format.