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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 9 — Sep. 1, 1999
  • pp: 1439–1446

Laser spectral dynamics of Nd3+ in CaF2–YF3 crystals

I. Iparraguirre, J. Azkargorta, J. Fernández, R. Balda, A. Oleaga, and A. A. Kaminskii  »View Author Affiliations


JOSA B, Vol. 16, Issue 9, pp. 1439-1446 (1999)
http://dx.doi.org/10.1364/JOSAB.16.001439


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Abstract

A spectral and dynamic study of spontaneous and stimulated emission of Nd3+ in yttrofluorite CaF2YF3(5%) crystals proves the existence of two main sites for the rare-earth ion in these crystals. Flash-lamp-pumped laser experiments show the existence of two laser output lines, centered at 1054 and 1063 nm, which correspond to stimulated emissions from the two resolved Nd3+ sites. The dependence of the time-resolved laser output energy and relative intensities of both lines on the pump energy suggests the existence of some kind of coupling between the two emissions produced by the stimulated-emission field itself. The ratio between the output energies at the two wavelengths was modeled as a simple rate-equation laser model that takes the stimulated-emission coupling into account.

© 1999 Optical Society of America

OCIS Codes
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.3380) Materials : Laser materials
(160.5690) Materials : Rare-earth-doped materials
(300.6360) Spectroscopy : Spectroscopy, laser

Citation
I. Iparraguirre, J. Azkargorta, J. Fernández, R. Balda, A. Oleaga, and A. A. Kaminskii, "Laser spectral dynamics of Nd3+ in CaF2–YF3 crystals," J. Opt. Soc. Am. B 16, 1439-1446 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-9-1439


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References

  1. A. A. Kaminskii, Crystalline Lasers: Physical Processes and Operating Schemes (CRC Press, Boca Raton, Fla., 1996).
  2. Kh. S. Bagdasarov, Yu. K. Voronko, A. A. Kaminskii, L. V. Krotova, and V. V. Osiko, “Modification of the optical properties of CaF2–TR3+ crystals by yttrium impurities,” Phys. Status Solidi 12, 905–912 (1965). [CrossRef]
  3. A. A. Kaminskii, “Procedure for the investigation of autoresonant energy transfer in laser active media,” Sov. Phys. JETP 27, 889–896 (1968).
  4. T. T. Basiev, A. Ya. Karasik, and R. L. Shubochkin, “Selective laser excitation and inhomogeneous band broadening of Nd3+ ions in disordered CaF2–YF3 crystals,” J. Lumin. 64, 259–265 (1995). [CrossRef]
  5. A. A. Kaminskii, V. V. Osico, A. M. Prokhorov, and Yu. K. Voronko, “Spectral investigation of the stimulated radiation of Nd3+ in CaF2–YF3,” Phys. Lett. 22, 419–420 (1966). [CrossRef]
  6. A. A. Kaminskii, “High-temperature spectroscopic investigation of stimulated emission from lasers based on crystals and glasses activated with Nd3+ ions,” Sov. Phys. JETP 27, 388–399 (1968).
  7. R. Balda, J. Azkargorta, I. Iparraguirre, J. Fernández, and M. A. Arriandiaga, “Study of the Cr3+ sensitization and structural disorder effects on the Nd3+ laser action in Ca-gallogermanate-type codoped crystals,” Opt. Mater. 8, 99–108 (1997). [CrossRef]
  8. J. Azkargorta, I. Iparraguirre, R. Balda, and J. Fernández, “Cr3+–Nd3+ energy transfer and Nd3+ laser action studies of La3Ga3SiO14:Cr3+:Nd3+ codoped crystal,” IEEE J. Quantum Electron. 33, 474–482 (1997). [CrossRef]
  9. J. Azkargorta, I. Iparraguirre, R. Balda, J. Fernández, and A. A. Kaminskii, “Time resolved spectroscopy of laser output of Nd3+ doped calcium, niobium, gallium garnet,” Opt. Commun. 118, 562–564 (1995). [CrossRef]

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