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Vacuum Operation of the LDM-4872

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Vacuum Operation of the LDM-4872

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The LDM-4872 mount allows the operation of quantum cascade lasers under vacuum. The mount can be operated under continuous vacuum pumping, or with an inline valve that allows the pump to be turned off after initial pump down. A common dual-stage rotary vane roughing pump is well suited for use with the LDM-4872. A thermocouple vacuum gauge should be used to monitor pressure whenever a laser is being operated. KF flange fittings and Swagelok® compression fittings are good choices for vacuum setups. When the mounted is sealed with an inline valve, some vacuum losses will occur over time. In order to prevent condensation at mount control temperatures of -35°C and typical ambient conditions (

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