OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 1 — Jan. 1, 2012
  • pp: 15–20

Single-frequency, high-power, continuous-wave fiber-laser-pumped Ti:sapphire laser

Suddapalli Chaitanya Kumar, Goutam Kumar Samanta, Kavita Devi, Stefano Sanguinetti, and Majid Ebrahim-Zadeh  »View Author Affiliations

Applied Optics, Vol. 51, Issue 1, pp. 15-20 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (451 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We demonstrate a high-power, continuous-wave (cw), single-frequency green source based on single-pass second-harmonic generation of a Yb-fiber laser in MgO:sPPLT as a viable pump source for a cw single-frequency Ti:sapphire ring laser. By careful design and optimization, the Ti:sapphire laser can provide as much as 2.3 W of cw single-frequency output across a 47 nm tuning range, limited by the reflectivity of the cavity mirrors. By implementing active stabilization of the laser frequency to an external reference, an ultrastable Fabry–Perot interferometer, we obtain a frequency stability better than 12 MHz over 10 min and continuous tunability greater than 180 MHz. Stable output power with peak-to-peak fluctuation of 5.4% over 75 min, in high spatial beam quality with M2<1.34, is achieved.

© 2012 Optical Society of America

OCIS Codes
(140.3590) Lasers and laser optics : Lasers, titanium
(140.7300) Lasers and laser optics : Visible lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 10, 2011
Manuscript Accepted: November 10, 2011
Published: December 22, 2011

Suddapalli Chaitanya Kumar, Goutam Kumar Samanta, Kavita Devi, Stefano Sanguinetti, and Majid Ebrahim-Zadeh, "Single-frequency, high-power, continuous-wave fiber-laser-pumped Ti:sapphire laser," Appl. Opt. 51, 15-20 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. P. F. Moulton, “Spectroscopic and laser characteristics of Ti:Al2O3,” J. Opt. Soc. Am. B 3, 125–133 (1986). [CrossRef]
  2. A. J. Alfrey, “Modeling of longitudinally pumped cw Ti:sapphire laser oscillators,” IEEE J. Quantum Electron. 25, 760–766 (1989). [CrossRef]
  3. P. A. Schulz, “Single-frequency Ti:Al2O3 ring laser,” IEEE J. Quantum Electron. 24, 1039–1044 (1988). [CrossRef]
  4. T. L. Boyd and H. J. Kimble, “Frequency stabilization of a continuous-wave Ti:sapphire laser,” Opt. Lett. 16, 808–810 (1991). [CrossRef]
  5. J. Harrison, A. Finch, D. M. Rines, G. A. Rines, and P. F. Moulton, “Low-threshold, cw, all-solid-state Ti:Al2O3 laser,” Opt. Lett. 16, 581–583 (1991). [CrossRef]
  6. P. W. Roth, A. J. Maclean, D. Burns, and A. J. Kemp, “Directly diode-laser-pumped Ti:sapphire laser,” Opt. Lett. 34, 3334–3336 (2009). [CrossRef]
  7. B. Resan, E. Coadou, S. Petersen, A. Thomas, P. Walther, R. Viselga, J. M. Heritier, J. Chilla, W. Tulloch, and A. Fry, “Ultrashort pulse Ti:sapphire oscillators pumped by optically pumped semiconductor (OPS) pump lasers,” Proc. SPIE 6871, 687116 (2008). [CrossRef]
  8. J. Klein and J. D. Kafka, “The Ti:sapphire laser: the flexible research tool,” Nat. Photon. 4, 289 (2010). [CrossRef]
  9. G. K. Samanta, S. C. Kumar, and M. Ebrahim-Zadeh, “Stable, 9.6 W, continuous-wave, single-frequency, fiber-based green source at 532 nm,” Opt. Lett. 34, 1561–1563 (2009). [CrossRef]
  10. S. C. Kumar, G. K. Samanta, and M. Ebrahim-Zadeh, “High-power, single-frequency, continuous-wave second-harmonic-generation of ytterbium fiber laser in PPKTP and MgO:sPPLT,” Opt. Express 17, 13711–13726 (2009). [CrossRef]
  11. G. K. Samanta, S. C. Kumar, K. Devi, and M. Ebrahim-Zadeh, “Multicrystal, continuous-wave, single-pass second-harmonic generation with 56% efficiency,” Opt. Lett. 35, 3513–3515 (2010). [CrossRef]
  12. G. K. Samanta, S. C. Kumar, R. Das, and M. Ebrahim-Zadeh, “Continuous-wave optical parametric oscillator pumped by a fiber laser green source at 532 nm,” Opt. Lett. 34, 2255–2257 (2009). [CrossRef]
  13. G. K. Samanta, S. C. Kumar, K. Devi, and M. Ebrahim-Zadeh, “High-power, continuous-wave Ti:sapphire laser pumped by fiber-laser green source at 532 nm,” Opt. Lasers Eng. 50, 215–219 (2012). [CrossRef]

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