10.5 W central lobe output power obtained with an efficient 1030 nm DBR tapered diode laser
A. Müller, C. Zink, A. Ginolas, J. Fricke, F. Bugge, G. Erbert, and B. Sumpf
Published in:
IEEE High Power Diode Lasers and Systems Conference (HPD 2017), Coventry, UK, Oct. 11-12, pp. 61-62 (2017).
Abstract:
An efficient, 1030 nm distributed Bragg reflector (DBR) tapered diode laser with 10.5 W central lobe output power is presented. The laser is based on a tapered DBR grating for enhanced spatial mode filtering and ion implantation along the mesa structure for the suppression of unwanted modes. The highest optical output power and electro-optical efficiency are 14 W and 50%, respectively. Intrinsic wavelength stabilization provides narrowband over the whole power range. Within the studied parameter range, the highest central lobe output power of 10.5 W corresponds to 75% of the emitted optical output power. A low degradation of the central lobe power content indicates the robustness of the developed design. The measured beam propagation ratios M2 are 1.2 (1/e2). These results may help to further increase the application potential for DBR tapered diode lasers.
Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Str. 4, 12489 Berlin, Germany
Index Terms:
Diffraction limited, Distributed Bragg reflector, Narrowband emission, Tapered diode laser.
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