PACS 42.55.L, 42.60.P, 42.62

Iodine-stabilized He-Ne laser pumped by transverse rf-discharge

O. V. Boyko, A. M. Negriyko, L. P. Yatsenko

Semiconductor Physics, Quantum Electronics & Optoelectronics. 1999. V. 2, No 1. P.133-141. Eng. Il.: 9. Ref.: 17

The results of experimental investigations of He-Ne/127I2 lasers (l = 633 nm) pumped by transverse rf-discharge are presented. Due to the low level of amplitude fluctuations, the frequency stability of such lasers reaches 5*10-13 for the integration time 100 s, and it is about six times as large as the stability of the lasers pumped by dc-discharge. The modulation shifts of the frequency of stabilized He-Ne/127I2 lasers were measured with high accuracy in the wide range of the frequency deviation 1.5 MHz D 20 MHz. The sources of the asymmetry of saturated-absorption resonances were determined as the joint action of the lenslike properties of the absorption medium and the elastic velocity-changing collisions of absorbing molecules. The results of a bilateral laser frequency comparison of the developed laser and the laser DE-3 (KIM, Kharkiv) are reported.

Keywords: He-Ne laser, freqency shift, frequency stabilization, resonance asymmetry.

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