We report the fabrication of a novel high-power vertical-cavity surface-emitting laser (VCSEL) with radial bridge electrodes in this letter. The analysis shows that the radial bridge electrodes can reduce the p-type distributed Bragg reflector (p-DBR) electric and thermal resistance, and improve the device beam quality. The high-power radial brigde electrode VCSELs with 200-\mum aperture have been made and tested. The testing results show that the differential resistance of the VCSEL is 0.43 \Omega and the maximal continuous-wave (CW) output power is 340 mW, 1.7 times higher than the conventional electrode device. Its thermal resistance is 0.095 \Degress/mW, and its near-field pattern exhibits a homogeneous distribution. The high-power radial bridge electrode VCSEL has better temperature and opto-electric characteristics.
© 2009 Chinese Optics Letters
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.6810) Lasers and laser optics : Thermal effects
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers
Lifeng Hou, Gang Zhong, Yingjie Zhao, Yongzhuang Yang, Yuxia Wang, Yongqin Hao, Yuan Feng, Xiaoguang Jiang, and Haorui Xie, "Fabrication of high-power VCSEL with radial bridge electrodes," Chin. Opt. Lett. 7, 709-711 (2009)