10.5 W central lobe output power obtained with an efficient 1030 nm DBR tapered diode laser

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 M
²
are 1.2 (1/e
²
). These results may help to further increase the application potential for DBR tapered diode lasers.