Operation characteristics of the Au-II 690-nm laser transition in a segmented hollow-cathode discharge |
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| Authors: | G Bánó L Szalai K Kutasi P Hartmann Z Donkó K Rózsa Á Kiss TM Adamowicz |
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| Institution: | (1) Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest, Hungary (E-mail: bano@sunserv.kfki.hu), HU;(2) Institute of Micro- and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland, PL |
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| Abstract: | Single-mode operation at the Au-II 690-nm transition was obtained in a segmented hollow-cathode discharge laser without the
use of any additional frequency-selective device. The pressure of the helium buffer gas, which is responsible for the significant
homogeneous broadening of the laser line, was varied between 10 and 20 mbar. The discharge was excited with rectangular current
pulses (up to 3 A) six times exceeding the threshold value. The time dependence of the laser output during the 1-ms-long discharge
pulses is explained on the basis of the temperature and pressure changes in the tube. The highest small-signal gain at optimal
discharge conditions was 11%m−1.
Received: 1 July 1999 / Revised version: 4 November 1999 / Published online: 23 February 2000 |
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| Keywords: | PACS: 42 55 Lt 42 60 Lh 52 80 -s |
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