Abstract
A novel scheme is proposed for stabilizing the intensity of a fluctuating laser source, using a partly saturated high gain traveling wave laser amplifier with a nonsaturable absorber distributed in the amplifying medium. Calculations for homogeneously broadened laser gain band in an adiabatic approximation are presented, which indicate that the stabilization factor can be increased by several orders of magnitude with the help of the absorber. An experiment is reported in which a two-stage dye laser amplifier with inserted attenuator, pumped by a nitrogen laser, is used to amplify and stabilize the intensity of an ultra-narrowband repetitively pulsed dye laser. The output intensity changes by less than a factor of four when the input is changed over three orders of magnitude.
Similar content being viewed by others
References
T.W.Hänsch: Appl. Opt.11, 895 (1972)
T.W.Hänsch, I.S.Shahin, A.L.Schawlow: Phys. Rev. Letters27, 707 (1971)
T.W.Hänsch, I.S.Shahin, A.L.Schawlow: Nature56, 63 (1972)
L.Mandel, E.Wolf: Rev. Mod. Phys.37, 231 (1965)
J.W.Kluver: J. Appl. Phys.37, 2987 (1966)
T.W.Hänsch, F.Varsanyi, A.L.Schawlow: Appl. Phys. Letters18, 108 (1971)
R. Cubeddu, S.M.Curry: Submitted for publication
Author information
Authors and Affiliations
Additional information
Work supported by the U.S. Office of Naval Research, Contract No. N00014-67-A-0112-0071, and by a Grant from the Research Development Fund, Stanford University.
On leave from the Laboratorio de Elettronica Quantistica del CNR di Milano, Milano, Italy.
Rights and permissions
About this article
Cite this article
Curry, S.M., Cubeddu, R. & Hänsch, T.W. Intensity stabilization of dye laser radiation by saturated amplification. Appl. Phys. 1, 153–159 (1973). https://doi.org/10.1007/BF00889546
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00889546