Single-frequency regime of oscillation of a high-power He—Ne laser with a transverse SHF discharge

The possibility of producing a single-frequency regime of oscillation of a He−Ne laser with a transverse shf discharge by changing the pressure of the gas mixture is investigated. A single-frequency regime of oscillation with a high radiation power (10 mW) and a low level of amplitude noise (10⁻⁵ Hz^−1/2) has been produced at a pressure above 6 mm Hg. The laser power in the single-frequency regime comprises 60–80% of the power in the regime of multifrequency oscillation. Physics Department, Tashkent State University, Campus, Tashkent, 700095, Uzbekistan. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 1, pp. 116–118, January–February, 1997.