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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 21 — Jul. 20, 1998
  • pp: 4902–4906

Experimental determination of the fundamental-mode diameter in solid-state lasers

Christoph Siegel, Thomas Graf, Jürg Balmer, and Heinz P. Weber  »View Author Affiliations


Applied Optics, Vol. 37, Issue 21, pp. 4902-4906 (1998)
http://dx.doi.org/10.1364/AO.37.004902


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Abstract

A method to determine directly the radius of the fundamental mode in a laser crystal has been developed. The radius is measured by comparison of the distribution of the spontaneous emission in the pumped region during laser operation with the fluorescence distribution without laser emission. Measuring the mode radius with various pump powers enables one to optimize the overlap between the pump and the cavity beam and to determine the dioptric power of the thermally induced lens.

© 1998 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.6810) Lasers and laser optics : Thermal effects

History
Original Manuscript: November 17, 1997
Revised Manuscript: March 24, 1998
Published: July 20, 1998

Citation
Christoph Siegel, Thomas Graf, Jürg Balmer, and Heinz P. Weber, "Experimental determination of the fundamental-mode diameter in solid-state lasers," Appl. Opt. 37, 4902-4906 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-21-4902


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References

  1. C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994). [CrossRef]
  2. J. Frauchiger, P. Albers, H. P. Weber, “Modelling of thermal lensing and higher order ring mode oscillation in end-pumped cw Nd:YAG laser,” IEEE J. Quantum Electron. 28, 1046–1056 (1992). [CrossRef]
  3. S. Merazzi, R. Gruber, C. Pfistner, R. Weber, “Numerical simulation of mechanical and optical properties of solid-state lasers,” Tech. Rep. (Centro Svizzero di Calcolo Scientifico, Manno, Switzerland, 1993).
  4. S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, “Scaling cw diode-end-pumped Nd:YAG lasers to high average powers,” IEEE J. Quantum Electron. 28, 997–1009 (1992). [CrossRef]
  5. U. O. Farrukh, A. M. Buoncristiani, C. E. Byvik, “An analysis of the temperature distribution in finite solid-state laser rods,” IEEE J. Quantum Electron. 24, 2253–2263 (1988). [CrossRef]
  6. M. E. Innocenzi, H. T. Yura, C. L. Fincher, R. A. Fields, “Thermal modelling of continuous-wave end-pumped solid-state lasers,” Appl. Phys. Lett. 56, 1831–1833 (1990). [CrossRef]
  7. J. E. Murray, “Pulsed gain and thermal lensing of Nd:LiYF4,” IEEE J. Quantum Electron. QE-19, 488–491 (1983). [CrossRef]
  8. G. Cerullo, S. de Silvestri, V. Magni, “High efficient 40W Nd:YLF laser with large TEM00 mode,” Opt. Commun. 93, 77–81 (1992). [CrossRef]
  9. B. Neuenschwander, R. Weber, H. P. Weber, “Determination of the thermal lens in solid-state lasers with stable cavities,” IEEE J. Quantum Electron. 31, 1082–1087 (1995). [CrossRef]
  10. N. Hodgson, H. Weber, Optical Resonators (Springer-Verlag, Berlin, 1997), pp. 598–604.
  11. N. Hodgson, H. Weber, Optische Resonatoren (Springer-Verlag, Berlin, 1992). [CrossRef]
  12. S. de Silvestri, P. Laporta, V. Magni, “Pump power stability range of single-mode solid-state lasers with rod thermal lensing,” IEEE J. Quantum Electron. QE-23, 1999–2003 (1987). [CrossRef]
  13. Th. Graf, J. E. Balmer, R. Weber, H. P. Weber, “Variable-configuration resonator (VCR) with three diode-laser end-pumped Nd:YAG rods,” in Advanced Solid-State Lasers, Vol. 10 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 370–375.
  14. V. Magni, “Resonators for solid-state lasers with large-volume fundamental mode and high alignment stability,” Appl. Opt. 25, 107–117 (1986). [CrossRef] [PubMed]

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