High-peak-power optically-pumped AlGaInAs eye-safe laser with a silicon wafer as an output coupler - comparison between the stack cavity and the separate cavity
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-11-17 |
| Journal | Optics Express |
| Authors | C. P. Wen, P. H. Tuan, H. C. Liang, C. H. Tsou, K. W. Su |
| Institutions | National Taiwan Ocean University, National Yang Ming Chiao Tung University |
| Citations | 7 |
Abstract
Section titled āAbstractāAn intrinsic silicon wafer is exploited as an output coupler to develop a high-peak-power optically-pumped AlGaInAs laser at 1.52 Ī¼m. The gain chip is sandwiched with the diamond heat spreader and the silicon wafer to a stack cavity. It is experimentally confirmed that not only the output stability but also the conversion efficiency are considerably enhanced in comparison with the separate cavity in which the silicon wafer is separated from other components. The average output power obtained with the stack cavity was 2.02 W under 11.5 W average pump power, corresponding to an overall optical-to-optical efficiency of 17.5%; the slope efficiency was 18.6%. The laser operated at 100 kHz repetition rate and the pulse peak power was 0.4 kW.