Open AccessDemonstration of a 20‐W membrane‐external‐cavity surface‐emitting laser for sodium guide star applications
Author(s) -
Priante D.,
Zhang M.,
Albrecht A.R.,
Bek R.,
Zimmer M.,
Nguyen C.,
Follman D.,
Cole G.D.,
SheikBahae M.
Publication year - 2021
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12008
Subject(s) - materials science , silicon carbide , laser , optoelectronics , optics , wavelength , optical pumping , semiconductor , silicon , physics , metallurgy
We present a record 20‐W continuous‐wave output power membrane‐external‐cavity surface‐emitting laser (MECSEL) double‐bonded to silicon carbide (SiC) heat spreaders emitting around 1178 nm. We achieved a maximum slope efficiency of 27.7% and an optical‐to‐optical efficiency of 26.7%. By utilising an intracavity birefringent filtre, the wavelength was tuned over 75 nm and maximum output power of 12.7 W was recorded at 1178 nm. This study shows the potential of MECSELs to achieve high‐performance and cost‐effective optically pumped semiconductor disk lasers targeting applications in sodium guide stars.