论文信息 - 12W high-brightness single-frequency DBR tapered diode laser

12W high-brightness single-frequency DBR tapered diode laser

A distributed Bragg reflector (DBR) tapered diode laser with a record optical output power of 12 W and a conversion efficiency of about 44% is presented. The device has a sixth-order surface grating and shows single longitudinal mode emission at 979 nm as well as a nearly diffraction limited beam. At 11.4 W the laser has a lateral beam propagation factor of M 2 1/ e 2 =1.1 with 72% of the power in the central lobe.

[1] Katrin Paschke,et al. 10W continuous-wave monolithically integrated master-oscillator power-amplifier , 2007 .

[2] G. Tränkle,et al. 7.4 W continuous-wave output power of master oscillator power amplifier system at 1083 nm , 2006 .

[3] Michael Mikulla,et al. Tapered diode lasers at 976 nm with 8 W nearly diffraction limited output power , 2005 .

[4] Andreas Klehr,et al. 980-nm DBR lasers using higher order gratings defined by i-line lithography , 2005 .

[5] U. Zeimer,et al. Novel passivation process for the mirror facets of Al-free active-region high-power semiconductor diode lasers , 2005, IEEE Photonics Technology Letters.

[6] Katrin Paschke,et al. High power single mode 980nm DBR tapered diode lasers with integrated sixth order surface gratings based on simplified fabrication process , 2006, SPIE Photonics Europe.

[7] Peter E. Andersen,et al. Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier , 2005 .