论文信息 - 20 W and 50 W guidestar laser system update for the Keck I and Gemini South telescopes

20 W and 50 W guidestar laser system update for the Keck I and Gemini South telescopes

Lockheed Martin Coherent Technologies has developed 20 W and 50 W commercial solid-state sodium beacon Guidestar Laser Systems (GLS) for the Keck I and Gemini South telescopes, respectively. This work represents a critical step toward addressing the need of the astronomical adaptive optics (AO) community, including multi-conjugate AO and AO tomography for future extremely large telescopes. This paper describes the status of GLS for the Keck I and Gemini South telescopes. The design and experimental results of the laser oscillators, amplifiers and sum-frequency generator will be discussed.

[1] Gustavo Arriagada,et al. Laser guide star upgrade of Altair at Gemini North , 2006, SPIE Astronomical Telescopes + Instrumentation.

[2] Munib Jalali,et al. High Average Power 589 nm generation in LBO , 2008 .

[3] Francois Rigaut,et al. Gemini North Laser Adaptive Optics Performance: First Science Data , 2006 .

[4] Sean M. Adkins,et al. 20-W and 50-W solid-state sodium beacon guidestar laser systems for the Keck I and Gemini South telescopes , 2006, SPIE Astronomical Telescopes + Instrumentation.

[5] David Le Mignant,et al. Adaptive optics developments at Keck Observatory , 2004, SPIE Astronomical Telescopes + Instrumentation.

[6] Allen K. Hankla,et al. High-power solid-state sodium guidestar laser for the Gemini North Observatory , 2006, SPIE LASE.