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Tunable CO2-Laser (R)

#0216


Automatic Tunable CO2 - Laser.

Tech Area / Field

  • PHY-OPL/Optics and Lasers/Physics

Status
8 Project completed

Registration date
25.07.1994

Completion date
05.05.1998

Senior Project Manager
Ryabeva E V

Leading Institute
VNIIEF, Russia, N. Novgorod reg., Sarov

Collaborators

  • University of Twente, The Netherlands, Enschede

Project summary

For solving the whole range of problems at field of spectroscopy, laser chemistry, plasma physics, CO2-lasers active media, ecological monitoring of atmosphere and etc. one is needed in output stabilized CW CO2-lasers tunable over lines of the wide wavelength range. Series of firms from USA and Europe (Appollo, Edinburgh Instrum., Ultra Lasertech.) are now producing tunable CO2-lasers, but latter have a number of drawbacks restricting an application area. Firstly, they arc operate at traditional spectrum range only (0001-1000 and 0001-0200 bands). The lack of an untraditional bands (0002-1001, 0002-0201, 0111-1110) at generation spectrum docs not allow to solve a number of practical problems. Secondly, while working with known types of industrial lasers, it is necessary to use a spectrum analyzer (monochromator or resonant absorbing gas cell) for laser tuning on to a desired generation line, which seriously complicates the laser system and raises its price.

It is known that the small signal gains magnitudes for a lines from untraditional bands arc approximately one order less then that for traditional bands. Besides, untraditional lines lengths are neighboring to traditional lines lengths. So as a rule for untraditional band lines separation a hot CO2-containing cavity is inserted into a resonator arrangement for traditional generation lines suppression. This considerably complicates the laser design, produces the difficulties for laser automation and docs not enable to obtain as traditional as untraditional lines which is significant for many practical applications, e.g. in case of CO2-lasers active medium probing.

The laser which performs at lines from traditional and untraditional bands reveals its possibilities to a most complete extent in case of it running automatically and controlled by a PC according to a program specially designed for a definite task, as in this case the labor input should be sufficiently decreased and the research productivity and an informative potential should be increased.

The goals of the Project are designing and optimization of a CO2 laser tunable over various vibrational-rotational transitions and designing software and hardware for the laser handling.

Given Project is fully compatible to ISTC goals:


– here is a novel physical-technical development having a prospect of being successfully used at many peaceful research branches and firstly at field of diagnostics of CO2-lasers active medium and environment protection;
– project results possess a commercial potential and therefore are undoubtedly benefit to conversion to a market economy;
– it encourages engaging of Russian weapon scientists and engineers in an international scientific community.


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