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- W1650695222 abstract "This is an overview of technical issues, and operational and maintenance activities for the Gemini North Laser system, which currently operates in support of Laser Guide Star Adaptive Optics (LGS AO) science observations. Discussion will detail various issues with laser pump diodes: failure analysis and reliability as well as techniques in spectral temperature tuning. Wavelength stability has been a major issue for operation of the laser and continuous monitoring of the laser is required to maintain power and wavelength within specification. Current investigation in to the problem will be reviewed along with the methods of managing the issue. The Sum Frequency Generation (SFG) Periodically Poled Stoichiometric Lithium Tantalate (PPSLT) crystal will be discussed with respect to performance, maintenance and future testing plans to commission spare crystals in the laser system should they be needed. Various improvements in software and hardware will be briefly discussed along with an overview of diagnostics tools that are in place or being developed. Since the completion of science commissioning the operations model we follow to prepare and maintain the laser for LGS AO science observations has allowed for good uptime. During this time it has been an intensive training for those operating the system and some of the experience will be discussed along with the current laser operations support model. Suggested session: Adaptive Optics." @default.
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- W1650695222 date "2007-01-01" @default.
- W1650695222 modified "2023-09-27" @default.
- W1650695222 title "An Operations and Maintenance Overview of the Gemini North Artificial Guide Star Laser" @default.
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