27 July 2016 Development of vertical external cavity surface emitting lasers (VECSELs) for use as monochromatic and polychromatic sodium guidestars
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Abstract
The work of Pique showed that multiple guidestars emitting at 1140 nm and 589 nm simultaneously could be utilized to correct for Tip and Tilt aberrations [1]. Such a guidestar is hence known as a PLGS (Polychromatic Laser Guidestar). However, no current high power (> 5W) narrow bandwidth (< 1GHz) exist for 1140 nm emission. A Vertical External Cavity Surface Emitting Laser (VECSEL) is shown with high power > 12W and narrow bandwidth emission which has been successfully used to pump the sodium 3P3/2 to 4S1/2 sodium transition as a testbed for the development of a CW PLGS system.
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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, John T. McGraw, John T. McGraw, Robert L. Johnson, Robert L. Johnson, Jeff W. Richey, Jeff W. Richey, } "Development of vertical external cavity surface emitting lasers (VECSELs) for use as monochromatic and polychromatic sodium guidestars", Proc. SPIE 9909, Adaptive Optics Systems V, 99095R (27 July 2016); doi: 10.1117/12.2239240; https://doi.org/10.1117/12.2239240
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