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- W4311431143 abstract "In this article, we explore how cryogenic cooling of the Ti:sapphire laser crystal greatly reduces thermal lensing by over an order of magnitude because of two factors: (i) the increase in the thermal conductivity of the crystal, and (ii) the decrease in the temperature dependence of the refractive index. We obtained analytical expression of the focal length of thermal lens for the pump inside the laser crystal being a Gaussian beam. Through analysis of the laser cavity stability, we found that in order for the relative difference between the optimal laser cavity path lengths in the horizontal and vertical directions to be less than 0.1%, the focal length of thermal lens should be longer than 0.5 m. Such a requirement can be met if the laser crystal is cooled to temperatures below 100 K while being pumped at a power that is enough to produce 100 W output. Therefore, it is very likely that an output power of 100 W can be achieved on a single Ti:sapphire laser by cryogenic cooling of the laser crystal." @default.
- W4311431143 created "2022-12-26" @default.
- W4311431143 creator A5012093065 @default.
- W4311431143 date "2022-12-12" @default.
- W4311431143 modified "2023-09-24" @default.
- W4311431143 title "A study of enhancing the power of a CW Ti:sapphire laser by cryogenic cooling" @default.
- W4311431143 doi "https://doi.org/10.48550/arxiv.2212.05898" @default.
- W4311431143 hasPublicationYear "2022" @default.
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