Low-Noise single-frequency He-Ne laser with stable output power at a wavelength of 1.52 µm
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Abstract
The results of investigation of the energy and spectral characteristics of a He-Ne laser (λrad=1.52 µm) with transverse microwave discharge are presented. A single-frequency generation mode at a pressure above 6.0 mm Hg was obtained with radiation power 7.0 mW and low level of amplitude noise (10−5 Hz−1/2). Active stabilization of the laser power was carried out, which allows reduction in radiation intensity fluctuations from 1–5 to 0.1 %.
Keywords
He-Ne laser single-frequency mode power stability noise level pressure gas mixturePreview
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© Kluwer Academic/Plenum Publishers 2000