| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5007524 | Optics & Laser Technology | 2017 | 5 Pages |
Abstract
The continuous-wave 100 W-class 808 nm laser diode arrays with extremely high power conversion efficiency of 68% were reported at the heatsink temperature of 25 °C. To the best of our knowledge, this was the highest power conversion efficiency at continuous-wave 106 W 808 nm laser diode array with 50% fill factor so far. An asymmetric broad waveguide epitaxial structure with very low internal optical loss of 0.5 cmâ1 was presented. In order to improve the efficiency, various fill factor devices were studied. The 50 W laser diode array with 30% fill factoir and 1.0 mm cavity length demonstrated power conversion efficiency of 71% at heatsink temperature of 15 °C.
Related Topics
Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Zhenfu Wang, Te Li, Guowen Yang, Yunfei Song,