Active-mirror-laser-amplifier thermal management with tunable helium pressure at cryogenic temperatures

Antonio Lucianetti; Daniel Albach; Jean Christophe Chanteloup

doi:10.1364/OE.19.012766

Active-mirror-laser-amplifier thermal management with tunable helium pressure at cryogenic temperatures

Antonio Lucianetti
, Daniel Albach
, Jean Christophe Chanteloup

CEA/UVSQ/CNRS

Research output: Contribution to journal › Article › peer-review

Abstract

We illustrate the benefits of a thin, low pressure helium cell for efficient and safe heat removal in cryogenically-cooled active mirror laser amplifiers operating in the [100 J-1 kJ] / [1-10 Hz] range. A homogeneous gain medium temperature distribution averaging 160 K is obtained with a sub-mm helium-filled gap between the gain medium and a copper plate at 77 K. A significant degree of flexibility for tuning the temperature in the amplifier can be achieved by varying the pressure of the helium gas in the 10² to 10⁵ Pa range.

Original language	English
Pages (from-to)	12766-12780
Number of pages	15
Journal	Optics Express
Volume	19
Issue number	13
DOIs	https://doi.org/10.1364/OE.19.012766
Publication status	Published - 20 Jun 2011
Externally published	Yes

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title = "Active-mirror-laser-amplifier thermal management with tunable helium pressure at cryogenic temperatures",

abstract = "We illustrate the benefits of a thin, low pressure helium cell for efficient and safe heat removal in cryogenically-cooled active mirror laser amplifiers operating in the [100 J-1 kJ] / [1-10 Hz] range. A homogeneous gain medium temperature distribution averaging 160 K is obtained with a sub-mm helium-filled gap between the gain medium and a copper plate at 77 K. A significant degree of flexibility for tuning the temperature in the amplifier can be achieved by varying the pressure of the helium gas in the 102 to 105 Pa range.",

author = "Antonio Lucianetti and Daniel Albach and Chanteloup, \{Jean Christophe\}",

year = "2011",

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AU - Lucianetti, Antonio

AU - Albach, Daniel

AU - Chanteloup, Jean Christophe

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Y1 - 2011/6/20

N2 - We illustrate the benefits of a thin, low pressure helium cell for efficient and safe heat removal in cryogenically-cooled active mirror laser amplifiers operating in the [100 J-1 kJ] / [1-10 Hz] range. A homogeneous gain medium temperature distribution averaging 160 K is obtained with a sub-mm helium-filled gap between the gain medium and a copper plate at 77 K. A significant degree of flexibility for tuning the temperature in the amplifier can be achieved by varying the pressure of the helium gas in the 102 to 105 Pa range.

AB - We illustrate the benefits of a thin, low pressure helium cell for efficient and safe heat removal in cryogenically-cooled active mirror laser amplifiers operating in the [100 J-1 kJ] / [1-10 Hz] range. A homogeneous gain medium temperature distribution averaging 160 K is obtained with a sub-mm helium-filled gap between the gain medium and a copper plate at 77 K. A significant degree of flexibility for tuning the temperature in the amplifier can be achieved by varying the pressure of the helium gas in the 102 to 105 Pa range.

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DO - 10.1364/OE.19.012766

M3 - Article

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AN - SCOPUS:79959447113

SN - 1094-4087

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SP - 12766

EP - 12780

JO - Optics Express

JF - Optics Express

IS - 13

ER -

Active-mirror-laser-amplifier thermal management with tunable helium pressure at cryogenic temperatures

Abstract

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