Shanmugasundaram, V and Reddy, NM (1983) Analytical studies of gain optimization in CO2-N2 gasdynamic lasers employing two-dimensional wedge nozzles. In: Pramana, 21 (2). pp. 131-148.
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An analytical method has been proposed to optimise the small-signaloptical gain of CO2-N2 gasdynamic lasers (gdl) employing two-dimensional (2D) wedge nozzles. Following our earlier work the equations governing the steady, inviscid, quasi-one-dimensional flow in the wedge nozzle of thegdl are reduced to a universal form so that their solutions depend on a single unifying parameter. These equations are solved numerically to obtain similar solutions for the various flow quantities, which variables are subsequently used to optimize the small-signal-gain. The corresponding optimum values like reservoir pressure and temperature and 2D nozzle area ratio also have been predicted and graphed for a wide range of laser gas compositions, with either H2O or He as the catalyst. A large number of graphs are presented which may be used to obtain the optimum values of small signal gain for a wide range of laser compositions without further computations.
| Item Type: | Journal Article |
|---|---|
| Publication: | Pramana |
| Publisher: | Springer India |
| Additional Information: | Copyright of this article belongs to Springer India |
| Keywords: | Gasdynamic laser;population inversion;small signal gain;area ratio;wedge nozzle |
| Department/Centre: | Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering) |
| Date Deposited: | 27 May 2009 12:06 |
| Last Modified: | 27 May 2009 12:06 |
| URI: | http://eprints.iisc.ac.in/id/eprint/20278 |
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