Abstract
We investigated noise and fluctuations of the output power of cataphoretic HeSe+ lasers in positive column plasma. Direct coupling of laser output power noise and fluctuations of the local population inversion was found. An investigation of the positive column plasma showed moving striations being responsible for the gain fluctuations. Whereas the local plasma properties are dominated by high frequency striations in the 100 kHz range, integrated quantities such as laser gain per pass are most strongly influenced by low-frequency waves with a continuous noise spectrum below 200 kHz. External modulation of the discharge voltage or current at a frequency near thehf striations reduces laser noise and increases laser output power.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
W.T.Silfvast: Appl. Phys. Lett.13, 169 (1968)
W.T.Silfvast: Appl. Phys. Lett.17, 400 (1970)
C.C.Davis, T.A.King: In:Advances in Quantrum Electronics ed. by D.W.Goodwin (Academic Press, New York 1975)
D.C.Fromm, G.M.Neumann, E.M.Schmidt: Opt. Laser Technol.8, 68 (1976)
H.-P.Popp, E.Schmidt, M.Neiger, F.Pfeil: Opt. Laser Technol.13, 321 (1981)
Laser Focus. pp. 16–18 (Sept. 1976): “High-fidelity color negatives produced from slides with a 3-beam laser system”
H.-P.Popp, E.Schmidt: IEEE J. OE15, 840 (1979)
J.P.Goldsborough: Appl. Phys. Lett.15, 159 (1969)
T.P.Sosnowski: J. Appl. Phys.40, 5138 (1969)
T.Hsie, W.Knauer, U.Penning: Z. Naturforsch.32a, 1503 (1978)
M.Neiger, V.Nemec: Z. Naturforsch.34a, 260 (1979)
T.Suzuki, S.Teiri: Appl. Phys. Lett.31, 328 (1977)
A.J.Wallard, P.T.Woods: J. Phys. E (Sci. Instrum)7, 212 (1974)
D.Fromm, E.Schmidt: Z. Naturforsch.30a, 372 (1974)
K.G.Hernqvist: Appl. Phys. Lett.16, 464 (1971)
K.Wojaczek: Ann. Phys.3, 37 (1959)
L.Pekarek: Sov. Phys. Usp.11, 188 (1968)
P.A.Pavlov, V.E.Privalov: Sov. Phys. Tech. Phys.23, 775 (1978)
P.S.Lauda, N.A.Miskinova, Y.V.Ponomarey: Sov. Phys. Usp.23, 813 (1980)
A.Garscadden: InGaseous Electronics. Vol. I:Electrical Discharges (Academic Press, New York 1978)
W.W.Rigrod: J. Appl. Phys.36, 2487 (1965)
M.Neiger: Unpublished material
J.Skala: Czech. J. Phys.23, 284 (1973)
M.Sato: Beitr. Plasma Phys.11, 445 (1971)