Test performance of the PARSEC laser system

Sebastian Rabien; Richard I. Davies; Thomas Ott; Jianlang Li; Roberto Abuter; Stefan Kellner; Udo Neumann

doi:10.1117/12.551572

25 October 2004 Test performance of the PARSEC laser system

Sebastian Rabien, Richard I. Davies, Thomas Ott, Jianlang Li, Roberto Abuter, Stefan Kellner, Udo Neumann

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.551572
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The PARSEC laser system is designed for the VLT Laser Guide Star Facility to deliver a high power cw laser beam at 589nm, in order to create an artificial guide star in the mesospheric Sodium layer. The laser consists of a resonant, dye based power amplifier which is injection seeded with 589nm, single frequency radiation from a master oscillator. We report on the performance of the system both during the European Acceptance tests, and that which has been achieved in the laboratory. The maximum power we have obtained amounts to 20W cw laser light in a single mode and a single frequency at 589nm. With a beam quality of M² of 1.05-1.15 and a long term stability without manual intervention, the laser suits all the demands for operation at the VLT.

Citation Download Citation

Sebastian Rabien, Richard I. Davies, Thomas Ott, Jianlang Li, Roberto Abuter, Stefan Kellner, and Udo Neumann "Test performance of the PARSEC laser system", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.551572

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