10 March 2016 Vertical external cavity surface emitting lasers for sodium guidestar applications and improvement of current guidestar systems
Author Affiliations +
Abstract
To date, three types of laser sources have been used to excite mesospheric sodium atoms to use as a sodium guidestar for adaptive optics (AO). All these sources have inherent challenges and a possible fourth source is to utilize a frequencydoubled Vertical External Cavity Surface Emitting Laser (VECSEL). Such a VECSEL presents output efficiency above 20% with power in excess of 20 W. Modelling is also presented to validate the efficacy of developing VECSEL guidestar systems for use with current guidestar systems or as a stand-alone guidestar. The model agrees with the data collected with the 3.5 m telescope and narrowband laser guidestar at Starfire Optical Range.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shawn Hackett, Shawn Hackett, Alexander R. Albrecht, Alexander R. Albrecht, Zhou Yang, Zhou Yang, Jeffrey G. Cederberg, Jeffrey G. Cederberg, Mansoor Sheik-Bahae, Mansoor Sheik-Bahae, Robert Johnson, Robert Johnson, Jack Drummond, Jack Drummond, "Vertical external cavity surface emitting lasers for sodium guidestar applications and improvement of current guidestar systems", Proc. SPIE 9734, Vertical External Cavity Surface Emitting Lasers (VECSELs) VI, 97340Y (10 March 2016); doi: 10.1117/12.2216853; https://doi.org/10.1117/12.2216853
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT


Back to Top