Skip to main content

High-average-power flashlamp-pumped Nd:Glass fiber-bundle laser


Flashlamp-pumped high-gain fiber-bundle lasers consisting of multimode phosphate glass fibers have been investigated. By optimizing the fiber number and the outcoupling reflectivity in dependence on the pump conditions, high single-pulse energies in excess of 1 J as well as high-average-power extraction up to 100 W at a pulse repetition frequency of 100 Hz could be obtained from slim fiber-bundle lasers. Fiber numbers in the range of 150–250 and reflectivities between 35% and 50% have been found to provide reliable performance.

This is a preview of subscription content, access via your institution.


  1. 1.

    E. Snitzer: Plural fiber optic laser construction. U.S. Patent No. 3414837 (3 Dec. 1968)

  2. 2.

    L. E. Zapata: J. Appl. Phys.62, 3110 (1987)

    Google Scholar 

  3. 3.

    T. Yamashita: SPIE Proc.1171, 291 (1989)

    Google Scholar 

  4. 4.

    U. Griebner, R. Grunwald, R. Koch: In Proc. Int'l Conf. on Lasers 1992, (sts, McLean, VA 1993) pp. 319–325

    Google Scholar 

  5. 5.

    P.A. Nass, H.J. Hoffmann: SPIE Proc.1128, 308 (1989)

    Google Scholar 

  6. 6.

    P. Glas: Faseroptische Anordnung zur Strahlungserzeugung. German Patent No. DD 281 891 A5 (22 Aug. 1990)

  7. 7.

    D. Findlay, R.A. Clay: Phys. Lett.20, 277 (1966)

    Google Scholar 

  8. 8.

    W. Koechner:Solid-State Laser Engineering, 3rd edn., Springer Ser. Opt. Sci., Vol. 1 (Springer, Berlin, Heidelberg 1992)

    Google Scholar 

  9. 9.

    U. Griebner, R. Grunwald, R. Koch: InOSA Techn. Digest Ser., Vol. 11 (Opt. Soc. Am., Washington, DC 1993) pp. 620–623

    Google Scholar 

  10. 10.

    H.J. Hoffmann, J.S. Hayden: SPIE Proc.1021, 42 (1988)

    Google Scholar 

  11. 11.

    U. Griebner, R. Grunwald, R. Koch: SPIE Proc.1983, 8 (1993)

    Google Scholar 

Download references

Author information



Rights and permissions

Reprints and Permissions

About this article

Cite this article

Koch, R., Griebner, U. & Grunwald, R. High-average-power flashlamp-pumped Nd:Glass fiber-bundle laser. Appl. Phys. B 58, 403–407 (1994).

Download citation


  • 42.55.Wd
  • 42.55.Rz
  • 42.60.By