OSA's Digital Library

Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 6 — Mar. 15, 2008
  • pp: 590–592

Highly efficient, low-cost femtosecond Cr 3 + : Li CAF laser pumped by single-mode diodes

Umit Demirbas, Alphan Sennaroglu, Franz X. Kärtner, and James G. Fujimoto  »View Author Affiliations

Optics Letters, Vol. 33, Issue 6, pp. 590-592 (2008)

View Full Text Article

Enhanced HTML    Acrobat PDF (285 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We describe efficient continuous-wave (cw) and cw mode-locked operations of a Cr 3 + : Li CAF laser, pumped by inexpensive single spatial mode laser diodes. Up to 280 mW of cw output power was obtained with 570 mW of absorbed pump power, with a corresponding slope efficiency of 54%. Continuous tuning between 765 and 865 nm was demonstrated using a fused silica prism. A semiconductor saturable absorber mirror was used to initiate and sustain stable, self-starting, mode-locked operation. In cw mode locking, the laser produced 72 fs (FWHM) duration pulses, and 1.4 nJ pulse energy, at an average output power of 178 mW . Electrical to optical conversion efficiencies of 7.8% in mode-locked operation and 12.2% in cw operation were demonstrated.

© 2008 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3600) Lasers and laser optics : Lasers, tunable
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 4, 2008
Manuscript Accepted: January 23, 2008
Published: March 14, 2008

Umit Demirbas, Alphan Sennaroglu, Franz X. Kärtner, and James G. Fujimoto, "Highly efficient, low-cost femtosecond Cr3+:LiCAF laser pumped by single-mode diodes," Opt. Lett. 33, 590-592 (2008)

Sort:  Year  |  Journal  |  Reset  


  1. S. A. Payne, L. L. Chase, H. W. Newkirk, L. K. Smith, and W. F. Krupke, IEEE J. Quantum Electron. 24, 2243 (1988). [CrossRef]
  2. S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, and H. W. Newkirk, J. Appl. Phys. 66, 1051 (1989). [CrossRef]
  3. D. Kopf, K. J. Weingarten, G. Zhang, M. Moser, M. A. Emanuel, R. J. Beach, J. A. Skidmore, and U. Keller, Appl. Phys. B 65, 235 (1997). [CrossRef]
  4. U. Demirbas, A. Sennaroglu, A. Benedick, A. Siddiqui, F. X. Kärtner, and J. G. Fujimoto, Opt. Lett. 32, 3309 (2007). [CrossRef] [PubMed]
  5. P. Wagenblast, R. Ell, U. Morgner, F. Grawert, and F. X. Kärtner, Opt. Lett. 28, 1713 (2003). [CrossRef] [PubMed]
  6. G. J. Valentine, J. M. Hopkins, P. LozaAlvarez, G. T. Kennedy, W. Sibbett, D. Burns, and A. Valster, Opt. Lett. 22, 1639 (1997). [CrossRef]
  7. J. M. Hopkins, G. J. Valentine, W. Sibbett, J. A. der Au, F. Morier-Genoud, U. Keller, and A. Valster, Opt. Commun. 154, 54 (1998). [CrossRef]
  8. B. Agate, B. Stormont, A. J. Kemp, C. T. A. Brown, U. Keller, and W. Sibbett, Opt. Commun. 205, 207 (2002). [CrossRef]
  9. J. M. Hopkins, G. J. Valentine, B. Agate, A. J. Kemp, U. Keller, and W. Sibbett, IEEE J. Quantum Electron. 38, 360 (2002). [CrossRef]
  10. R. P. Prasankumar, Y. Hirakawa, A. M. Kowalevicz, Jr., F. X. Kärtner, J. G. Fujitimo, and W. H. Knox, Opt. Express 11, 1265 (2003). [CrossRef] [PubMed]
  11. A. Sennaroglu and J. G. Fujimoto, Opt. Express 11, 1106 (2003). [CrossRef] [PubMed]
  12. D. Klimm, G. Lacayo, and P. Reiche, J. Cryst. Growth 210, 683 (2000). [CrossRef]
  13. U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Honninger, N. Matuschek, and J. A. derAu, IEEE J. Sel. Top. Quantum Electron. 2, 435 (1996). [CrossRef]
  14. S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Sel. Top. Quantum Electron. 2, 454 (1996). [CrossRef]
  15. A. Isemann and C. Fallnich, Opt. Express 11, 259 (2003). [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.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited