OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 36, Iss. 15 — May. 20, 1997
  • pp: 3357–3362

Flash-lamp-pumped Ho:Tm:Cr:YAG and Ho:Tm:Er:YLF lasers: experimental results of a single, long pulse length comparison

Mahendra G. Jani, Norman P. Barnes, and Keith E. Murray  »View Author Affiliations

Applied Optics, Vol. 36, Issue 15, pp. 3357-3362 (1997)

View Full Text Article

Enhanced HTML    Acrobat PDF (215 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Flash-lamp-pumped, room-temperature Ho:Tm:Cr:YAG and Ho:Tm:Er:YLF are compared for single but long pulse operation, with pulse lengths of approximately 1.0 µs. Under similar operating conditions in normal-mode operation, a slope efficiency of 0.0331 was observed for Ho:Tm:Er:YLF compared with 0.0047 for Ho:Tm:Cr:YAG. For Q-switched operation, Ho:Tm:Er:YLF yielded a slope efficiency of 0.0075. In comparison, a slope efficiency of 0.0012 was obtained for Ho:Tm:Cr:YAG. Two methods of producing long pulse lengths are compared: pulse selection of normal-mode relaxation oscillations and Q-switching in a long resonator. Theoretical models developed in a companion paper for normal-mode relaxation oscillations and Q-switching in quasi-four-level solid-state lasers are in agreement with the experimental results.

© 1997 Optical Society of America

Original Manuscript: March 25, 1996
Published: May 20, 1997

Mahendra G. Jani, Norman P. Barnes, and Keith E. Murray, "Flash-lamp-pumped Ho:Tm:Cr:YAG and Ho:Tm:Er:YLF lasers: experimental results of a single, long pulse length comparison," Appl. Opt. 36, 3357-3362 (1997)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. T. Y. Fan, G. Huber, R. L. Byer, P. Mitzscherlich, “Spectroscopy and diode laser-pumped operation of Tm,Ho:YAG,” IEEE J. Quantum Electron. QE-24, 924–933 (1988). [CrossRef]
  2. N. P. Barnes, E. D. Filer, C. A. Morrison, C. J. Lee, “Ho:Tm:Lasers. I. Modelling,” IEEE J. Quantum Electron. 32, 92–103 (1996). [CrossRef]
  3. E. P. Chicklis, C. S. Naiman, R. C. Folweiler, J. C. Doherty, “Stimulated emission in multiply doped Ho3+: YLF and YAG: a comparison,” IEEE J. Quantum Electron. QE-8, 225–230 (1972). [CrossRef]
  4. E. W. Duczyanski, G. Huber, V. G. Ostroumov, I. A. Shcherbakov, “CW double pumping of the 5I7–5I8 laser transition in Ho3+ garnets,” Appl. Phys. Lett. 48, 1562–1563 (1986). [CrossRef]
  5. E. V. Zharikov, S. P. Kalitin, V. V. Laptev, V. G. Ostroumov, Z. S. Saldov, “Chromium doped scandium gallium garnet crystals as active media of lasers utilizing Ho3+ and Tm3+ infrared transitions,” Sov. J. Quantum Electron. 16, 145–147 (1986). [CrossRef]
  6. M. E. Storm, “Laser characteristics of a Q-switched Ho:Tm:Cr:YAG,” Appl. Opt. 27, 4170–4172 (1988). [CrossRef] [PubMed]
  7. G. J. Quarles, A. Rosenbaum, C. L. Marquardt, L. Esterowitz, “High efficiency 2.09 µm flashlamp pumped laser,” Appl. Phys. Lett. 55, 1062–1064 (1989). [CrossRef]
  8. S. R. Bowman, M. J. Winnings, R. C. Y. Auyeung, J. E. Tucker, S. K. Searles, B. J. Feldman, “Laser and spectral properties of Cr,Tm,Ho:YAG at 2.1 µm,” IEEE J. Quantum Electron. 27, 2142–2149 (1991). [CrossRef]
  9. N. P. Barnes, D. J. Gettemy, N. J. Levinos, J. E. Griggs, “TEM00 mode Ho:YLF laser,” in Los Alamos Conference on Optics ’79, D. H. Liebenberg, ed., Proc. SPIE190, 297–304 (1979). [CrossRef]
  10. S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, W. F. Krupke, “Infrared cross section measurements for crystals doped with Er3+, Tm3+, and Ho3+,” IEEE J. Quantum Electron. 28, 2619–2629 (1992). [CrossRef]
  11. E. D. Filer, C. A. Morrison, N. P. Barnes, B. E. Walsh, “YLF isomorphs for Ho and Tm laser applications,” in Advanced Solid State Lasers, Vol. 20 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1994), pp. 335–337.
  12. J. Harrison, G. A. Rines, P. F. Moulton, “Stable relaxation oscillation Nd lasers for long pulse generation,” IEEE J. Quantum Electron. QE-24, 1181–1187 (1988). [CrossRef]
  13. N. P. Barnes, K. E. Murray, M. G. Jani, “Flash-lamp-pumped Ho:Tm:Cr:YAG and Ho:Tm:Er:YLF lasers: modeling of a single, long pulse length comparison,” Appl. Opt. 36, 3363–3374 (1997). [CrossRef] [PubMed]
  14. W. A. Clarkson, A. B. Nelson, D. C. Hanna, “Explanation of the mechanism for acousto-optically induced unidirectional operation of a ring laser,” Opt. Lett. 17, 601–603 (1992). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited