Advertisement

Applied Physics B

, Volume 62, Issue 4, pp 339–344 | Cite as

Excited-state absorption in Er: BaY2F8 and Cs3Er2Br9 and comparison with Er: LiYF4

  • M. Pollnau
  • W. Lüthy
  • H. P. Weber
  • K. Krämer
  • H. U. Güdel
  • R. A. McFarlane
Article

Abstract

The influence of Excited-State Absorption (ESA) on the green laser transition and the overlap of Ground-State Absorption (GSA) and ESA for 970 nm upconversion pumping in erbium is investigated in Er3+ : BaY2F8 and Cs3Er2Br9. Results are compared to Er3+ : LiYF4. In Er3+: BaY2F8, a good overlap between GSA and ESA is found at 969 nm in one polarization direction. The emission cross section at 550 nm is a factor of two smaller than in LiYF4. In Cs3Er2Br9, the smaller Stark splitting of the levels shifts the wavelengths of the green emission and ESA from4I1 3/2 off resonance. It enhances, however, ground-state reabsorption. The emission cross section at 550 nm is comparable to LiYF4. Upconversion leads to significant green fluorescence from2H9/2. A significant population of the4I11/2 level and ESA at 970 nm are not present under 800 nm pumping.

PACS

42.55.Rz 42.60.Lh 78.45. + h 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. Xie, S.C. Rand: Opt. Lett.17, 1198 (1992)Google Scholar
  2. 2.
    R.R. Stephens, R.A. McFarlane: Opt. Lett.18, 34 (1993)Google Scholar
  3. 3.
    R. Scheps: IEEE J. QE-31, 309 (1995)Google Scholar
  4. 4.
    R.A. McFarlane: J. Opt. Soc. Am. B11, 871 (1994)Google Scholar
  5. 5.
    R. Brede, T. Danger, E. Heumann, G. Huber, B.H.T. Chai: Appl. Phys. Lett.63, 729 (1993)Google Scholar
  6. 6.
    F. Heine, E. Heumann, P. Möbert, G. Huber, B.H.T. Chai: InAdvanced Solid-State Lasers, OSA Tech. Dig. (Optical Society of America, Washington, DC 1995) pp. 267–269Google Scholar
  7. 7.
    M. Pollnau, E. Heumann, G. Huber: J. Lumin.60/61, 842 (1994)Google Scholar
  8. 8.
    T. Danger, J. Koetke, R. Brede, E. Heumann, G. Huber, B.H.T. Chai: J. Appl. Phys.76, 1413 (1994)Google Scholar
  9. 9.
    M. Pollnau, W. Lüthy, H.P. Weber: J. Appl. Phys.77, 6128 (1995)Google Scholar
  10. 10.
    D.S. Knowles, H.P. Jenssen: IEEE J. QE-28, 1197 (1992)Google Scholar
  11. 11.
    M.P. Hehlen, K. Krämer, H.U. Güdel, R.A. McFarlane, R.H. Schwartz: Phys. Rev. B49, 12475 (1994)Google Scholar
  12. 12.
    S. Zemon, G. Lambert, W.J. Miniscalco, R.W. Davies, B.T. Hall, R.C. Folweiler, T. Wei, L.J. Andrews, M.P. Singh: SPIE Proc.1373, 21 (1990)Google Scholar
  13. 13.
    J. Koetke, G. Huber: Appl. Phys. B61, 151 (1995)Google Scholar
  14. 14.
    M. Pollnau, E. Heumann, G. Huber: Appl. Phys. A54, 404 (1992)Google Scholar
  15. 15.
    J. Rubin, A. Brenier, R. Moncorgé, C. Pedrini: J. Lumin.36, 39 (1986)Google Scholar
  16. 16.
    M.P. Hehlen, G. Frei, H.U. Güdel: Phys. Rev. B50, 16264 (1994)Google Scholar
  17. 17.
    K.M. Dinndorf, D.S. Knowles, M. Gojer, H.P. Jenssen: InOSA Proc. Adv. Solid State Lasers, ed. by L.L. Chase, A.A. Pinto (Optical Society of America, Washington, DC 1992) pp. 270–274Google Scholar
  18. 18.
    L.H. Guilbert, J.Y. Gesland, A. Bulou, R. Retoux: Mater Res. Bull.28, 923 (1993)Google Scholar
  19. 19.
    M. Pollnau, Th. Graf, J. Balmer, W. Lüthy, H.P. Weber: Phys. Rev. A49, 3990 (1994)Google Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • M. Pollnau
    • 1
  • W. Lüthy
    • 1
  • H. P. Weber
    • 1
  • K. Krämer
    • 2
  • H. U. Güdel
    • 2
  • R. A. McFarlane
    • 3
  1. 1.Institute of Applied PhysicsUniversity of BerneBerneSwitzerland
  2. 2.Institute of Inorganic ChemistryUniversity of BerneBerneSwitzerland
  3. 3.Hughes Research LaboratoriesMalibuUSA

Personalised recommendations