OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13711–13726

High-power, single-frequency, continuous-wave second-harmonic-generation of ytterbium fiber laser in PPKTP and MgO:sPPLT

S. Chaitanya Kumar, G. K. Samanta, and M. Ebrahim-Zadeh  »View Author Affiliations

Optics Express, Vol. 17, Issue 16, pp. 13711-13726 (2009)

View Full Text Article

Enhanced HTML    Acrobat PDF (6022 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Characteristics of high-power, narrow-linewidth, continuous-wave (cw) green radiation obtained by simple single-pass second-harmonic-generation (SHG) of a cw ytterbium fiber laser at 1064 nm in the nonlinear crystals of PPKTP and MgO:sPPLT are studied and compared. Temperature tuning and SHG power scaling up to nearly 10 W for input fundamental power levels up to 30 W are performed. Various contributions to thermal effects in both crystals, limiting the SHG conversion efficiency, are studied. Optimal focusing conditions and thermal management schemes are investigated to maximize SHG performance in MgO:sPPLT. Stable green output power and high spatial beam quality with M2<1.33 and M2<1.34 is achieved in MgO:sPPLT and PPKTP, respectively.

© 2009 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(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:
Nonlinear Optics

Original Manuscript: June 15, 2009
Revised Manuscript: July 8, 2009
Manuscript Accepted: July 9, 2009
Published: July 24, 2009

S. Chaitanya 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)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. J.  Golden, "Green lasers score good marks in semiconductor material processing," Laser Focus World.  28, 75 (1992).
  2. R. J. Rockwell Jr., M.S., "Designs and functions of laser systems for biomedical applications", in Conference on the laser, Annals of the New York Academy of Sciences,  168, 2 (2006).
  3. K. Yamamoto, H. Furuya, and K. Mizuuchi, "Highly-efficient SHG laser by using periodically poled MgO:LiNbO3 and its application," in proceedings of Lasers and Electro-Optics Society, 693 (IEEE, 2007), paper ThA3.
  4. G. K. Samanta, S. Chaitanya 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] [PubMed]
  5. R. G. Batchko, G. D. Miller, A. Alexandrovski, M. M. Fejer, and R. L. Byer, In Proceedings of the Conference on Lasers and Electro-Optics, (Optical Society of America, Washington, D.C.,1998), 12, 75 (1998).
  6. J. D. Bierlein and H. Vanherzeele, "Potassium titanyl phosphate: properties and new applications," J. Opt. Soc. Am. B 6, 622-633 (1989). [CrossRef]
  7. Z. Sun, G. K. Samanta, G. R. Fayaz, M. Ebrahim-Zadeh, C. Canalias, V. Pasiskevicius, and F. Laurell, "Efficient generation of tunable CW single frequency green radiation by second harmonic generation in periodically-poled KTiOPO4," in Proceedings of the Conference on Lasers and Electro-Optics (Optical Society of America, 2007), paper CTuK1.
  8. G. K. Samanta, S. Chaitanya Kumar, M. Mathew, C. Canalias, V. Pasiskevicius, F. Laurell, and M. Ebrahim-Zadeh, "High-power, continuous-wave, second-harmonic generation at 532 nm in periodically poled KTiOPO4," Opt. Lett. 33, 2955-2957 (2008). [CrossRef] [PubMed]
  9. N. E. Yu, S. Kurimura, Y. Nomura, and K. Kitamura, "Stable high-power green light generation with thermally conductive periodically poled stoichiometric lithium tantalate," Jpn. J. Appl. Phys. 43, L1265 -L1267 (2004). [CrossRef]
  10. S. V. Tovstonog, S. Kurimura, I. Suzuki, K. Takeno, S. Moriwaki, N. Ohmae, N. Mio, and T. Katagai, "Thermal effects in high-power CW second harmonic generation in Mg-doped stoichiometric lithium tantalate, " Opt. Express 16, 11294-11299 (2008). [CrossRef] [PubMed]
  11. G. K. Samanta, S. Chaitanya 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] [PubMed]
  12. D. S. Hum, R. K. Route, G. D. Miller, V. Kondilenko, A. Alexandrovski, J. Huang, K. Urbanek, R. L. Byer, and M. M. Fejer, "Optical properties and ferroelectric engineering of vapor-transport-equilibrated, near-stoichiometric lithium tantalate for frequency conversion," J. Appl. Phys. 101, 093108 (2007). [CrossRef]
  13. The PPKTP crystal was fabricated by C. Canalias, V. Pasiskevicius, and F. Laurell, Royal Institute of Technology, Sweden.
  14. The MgO:sPPLT crystal was fabricated by HC Photonics Corporation, Taiwan.
  15. K. Kato and E. Takaoka, "Sellmeier and thermo-optic dispersion formulas for KTP," Appl. Opt. 41, 5040-5044 (2002). [CrossRef] [PubMed]
  16. A. Bruner, D. Eger, M. B. Oron, P. Blau, M. Katz, and S. Ruschin, "Temperature-dependent Sellmeier equation for the refractive index of stoichiometric lithium tantalite," Opt. Lett. 28, 194-196 (2003). [CrossRef] [PubMed]
  17. M. M.  Fejer, G. A.  Magel, D. H.  Jundt, and R. L.  Byer, "Quasi-phase-matched second harmonic generation: Tuning and tolerances," IEEE J. Quantum Electron.  28, 2631-2654 (1992). [CrossRef]
  18. G. D.  Boyd and D. A.  Kleinman, "Parametric interaction of focused Gaussian light beams," J. Appl. Phys.  39, 3597-3639 (1968). [CrossRef]
  19. K. Kitamura, Y. Furukawa, S. Takekawa, T. Hatanaka, H. Ito, and V , Gopalan, "Non-stoichiometric control of LiNbO3 and LiTaO3 in ferroelectric domain engineering for optical devices," Ferroelectrics 257, 235 -243 (2001) [CrossRef]
  20. G. K. Samanta, and M. Ebrahim-Zadeh, "Continuous-wave singly-resonant optical parametric oscillator with resonant wave coupling," Opt. Express 16, 6883-6888 (2008). [CrossRef] [PubMed]
  21. Z. M.  Liao, S. A.  Payne, J.  Dawson, A.  Drobschoff, C.  Ebbers, D.  Pennington, and L.  Taylor, "Thermally induced dephasing in periodically poled KTP frequency-doubling crystals," J. Opt. Soc. Am. B  21, 2191-2196 (2004). [CrossRef]
  22. H. Hatano, S. Takekawa, S. Kurimura, O. A. Louchev, and K. Kitamura, "Thermal managements for highly efficient SHG with linear input/output characteristics using periodically poled stoichiometric LiTaO3," in Proceedings of the Conference on Lasers and Electro-Optics (Optical Society of America, 2007), paper CMBB5.

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