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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 13 — Jun. 26, 2006
  • pp: 6084–6090

High-power widely tunable Tm:fibre lasers pumped by an Er,Yb co-doped fibre laser at 1.6µm

D. Y. Shen, J. K. Sahu, and W. A. Clarkson  »View Author Affiliations


Optics Express, Vol. 14, Issue 13, pp. 6084-6090 (2006)
http://dx.doi.org/10.1364/OE.14.006084


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Abstract

High-power and widely tunable Tm-doped silica fibre lasers cladding-pumped and core-pumped by a 1565 nm Er,Yb fibre laser are reported. Output power up to 19.2W was generated from the cladding-pumped cavity configuration for ~38.2W of launched pump power and with slope efficiency up to ~72% with respect to absorbed pump power. Wavelength tuning was realized by use of an external cavity containing a diffraction grating. A maximum output power of 17.4 W at 1941 nm was generated for 38.2 W of launched pump power and the operating wavelength could be tuned over 202 nm from 1859 to 2061 nm. In the core-pumped configuration, a maximum output power of 12.1 W was generated at 1851 nm for 23.1 W absorbed pump power using a simple free-running cavity configuration with only ~24 cm of Tm-doped fibre. By employing a tunable cavity configuration, the operating wavelength of the core-pumped Tm:fibre laser could be tuned over 250 nm from 1723–1973 nm at multi-watt power levels.

© 2006 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3600) Lasers and laser optics : Lasers, tunable

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 11, 2006
Revised Manuscript: June 8, 2006
Manuscript Accepted: June 8, 2006
Published: June 26, 2006

Citation
D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "High-power widely tunable Tm:fibre lasers pumped by an Er,Yb co-doped fibre laser at 1.6 μm," Opt. Express 14, 6084-6090 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-13-6084


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References

  1. R. A. Hayward, W. A. Clarkson, P. W. Turner, J. Nilsson, A. B. Grudinin, and D. C. Hanna, "Efficient cladding-pumped tm-doped silica fibre laser with high power single mode output at 2μm," Electron. Lett. 36, 711-712 (2000). [CrossRef]
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  8. W. A. Clarkson, D. Y. Shen, P. Wang, L. J. Cooper, J. Nilsson, and J. K. Sahu, "Power scaling of cladding-pumped Er,Yb-doped fiber lasers at 1.5 µm," in Lasers and Applications, K. M. Abramski, A. Lapucci, and E. F. Plinski eds., Proc. SPIE 5958, 167-176 (2005).

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