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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 20 — Sep. 26, 2011
  • pp: 19440–19453

Spontaneous and stimulated emission spectroscopy of a Nd3+-doped phosphate glass under wavelength selective pumping

I. Iparraguirre, J. Azkargorta, R. Balda, K. Venkata Krishnaiah, C.K. Jayasankar, M. Al-Saleh, and J. Fernández  »View Author Affiliations


Optics Express, Vol. 19, Issue 20, pp. 19440-19453 (2011)
http://dx.doi.org/10.1364/OE.19.019440


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Abstract

The influence of the host matrix on the spectroscopic and laser properties of Nd3+ in a K-Ba-Al phosphate glass has been investigated as a function of rare-earth concentration. Site-selective time resolved laser spectroscopy and stimulated emission experiments under selective wavelength laser pumping show the existence of a very complex crystal field site distribution of Nd3+ ions in this glass. The peak of the broad stimulated 4F3/24I11/2 emission shifts in a non monotonous way up to 3 nm as a function of the excitation wavelength. This behavior can be explained by the relatively moderate inter-site energy transfer among Nd3+ ions found in this system and measured by using fluorescence line narrowing spectroscopy. The best slope efficiency obtained for the laser emission was 40%.

© 2011 OSA

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(160.5690) Materials : Rare-earth-doped materials
(300.6500) Spectroscopy : Spectroscopy, time-resolved

ToC Category:
Spectroscopy

History
Original Manuscript: June 27, 2011
Revised Manuscript: September 8, 2011
Manuscript Accepted: September 15, 2011
Published: September 22, 2011

Virtual Issues
Vol. 6, Iss. 10 Virtual Journal for Biomedical Optics

Citation
I. Iparraguirre, J. Azkargorta, R. Balda, K. Venkata Krishnaiah, C.K. Jayasankar, M. Al-Saleh, and J. Fernández, "Spontaneous and stimulated emission spectroscopy of a Nd3+-doped phosphate glass under wavelength selective pumping," Opt. Express 19, 19440-19453 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-20-19440


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