TUNABLE OPTICAL CAVITIES FOR WAVELENGTH INDICATIONS IN GAS LASER

Tunable optical cavities for wavelength Indications in Gas Laser

Explain an all-optical tunable detention in gas laser based on wavelength conversion wavelength reconversion.The use of stable, calibrated optical reference cavities to equipping interferometer users with more exactly.Various resonance wavelengths of cavity were resolved by frequency measurements in a vacuum by use of a gas laser diet frostie root

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Home surveillance system based on LoRa backscattering

Abstract This work proposes a battery-free tru spec softshell jacket wireless burglar alarm system based on LoRa backscattering.The system consists of multiple wireless nodes that send an alert when its sensor is triggered.The primary goal is to significantly reduce the power consumption of these wireless nodes, eliminating the need for battery rep

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