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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-μm aperture have been made and tested.The testing results show that the differential resistance of the VCSEL is 0.43Ω and the maximal continuouswave (CW) output power is 340 mW,1.7 times higher than the conventional electrode device.Its thermal resistance is 0.095℃/mW,and its near-field pattern exhibits a homogeneous distribution.The high-power radial bridge electrode VCSEL has better temperature and opto-electric characteristics.
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- electric and thermal resistance, and improve the device beam quality. high-power radial brigde electrode VCSELs with 200-μm aperture have been made and tested. testing results show that the differential resistance of the VCSEL is 0.43Ω 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 ° C / mW, and its near-field pattern exhibits a homogeneous distribution. The high-power radial bridge electrode VCSEL has better temperature and opto -electric characteristics.