Gain and saturation parameter of a waveguide laser with distributed losses

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1985v015n07ABEH007294· OSTI ID:6387603

Dubovskii, P E; Lotkova, E N; Ponomarev, D I; Sobolev, N N

An analysis is made of the problem of allowance for distributed losses ..cap alpha../sub d/ in a gas-discharge waveguide laser when a determination is made of the gain g/sub 0/ and of the saturation parameter I/sub s/ from the output power P. Comparisons are made of the values of g/sub 0/ and I/sub s/ for a carbon monoxide waveguide laser, found experimentally by the method of calibrated losses allowing for and ignoring ..cap alpha../sub d/. A description is given of the method for the determination of g/sub 0/ of a waveguide laser by a probe laser (which eliminates the influence of ..cap alpha../sub d/) and the results are given for the 1846.9 cm/sup -1/ line of the CO molecule. It is shown that when g/sub 0/ and I/sub s/ are calculated from the measured values of P, an allowance must be made for ..cap alpha../sub d/ because otherwise the results are overestimated. Measurements are reported of the values of P obtained for CO waveguide lasers with capillaries of different lengths and a comparison is made between the experimental data and those calculated allowing for the values of ..cap alpha../sub d/.

• Research Organization: P.N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6387603
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 15:7; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARBON MONOXIDE LASERS
ENERGY LOSSES
GAIN
GAS LASERS
LASERS
LOSSES
SATURATION
WAVEGUIDES