In-Well Pumping of a Membrane External-Cavity Surface-Emitting Laser

In-Well Pumping of a Membrane External-Cavity Surface-Emitting Laser

We present a detailed characterization and comparative study of a membrane external-cavity surface-emitting laser (MECSEL) operating in the λ = 1125-1190 nm wavelength range under in-well pumping (at 1070 nm) and barrier-pumping (at 808 nm). The slope efficiency of the laser is significantly improve...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics Vol. 28; no. 1: Semiconductor Lasers; pp. 1 - 7
Main Authors: Priante, Davide, Zhang, Mingyang, Albrecht, Alexander R., Bek, Roman, Zimmer, Michael, Nguyen, Catherine L., Follman, David P., Cole, Garrett D., Sheik-Bahae, Mansoor
Format: Journal Article
Language:English
Published: New York IEEE 01-01-2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
IEEE Lasers and Electro-optics Society
Subjects:
Comparative studies
Engineering
Heat pumps
In-well pumping
Laser excitation
Lasers
membrane external-cavity surface-emitting laser (MECSEL)
Membranes
Optical pumping
Optical surface waves
optically-pumped semiconductor laser
Optics
Physics
Power generation
Pump lasers
Quantum wells
Semiconductor lasers
sodium guide star lasers
Surface emitting lasers
Vertical cavity surface emitting lasers
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Summary:We present a detailed characterization and comparative study of a membrane external-cavity surface-emitting laser (MECSEL) operating in the λ = 1125-1190 nm wavelength range under in-well pumping (at 1070 nm) and barrier-pumping (at 808 nm). The slope efficiency of the laser is significantly improved from 21% with barrier-pumping to 39% when pumping only the quantum wells at 1070 nm at a heat-sink temperature of 10 °C. To address the low pump absorbance with in-well pumping, we design and implement a low-aberration multi-pass pumping scheme. An optical output power of 28.5 W and slope efficiency of ∼28% is achieved with 8 circulating passes. This represents the highest output power demonstrated in any MECSEL, as well as the highest output power in-well pumped vertical external-cavity surface-emitting laser (VECSEL). It is noted that our reported output power is only limited by the available laser input power and no thermal roll-over is observed.
Bibliography:USDOE
89233218CNA000001
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2021.3109803