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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 19875–19885

Numerical modeling of alkali vapor lasers

Hong Shu, Ying Chen, Michael Bass, J. Fernando Monjardin, and Jochen Deile  »View Author Affiliations


Optics Express, Vol. 19, Issue 21, pp. 19875-19885 (2011)
http://dx.doi.org/10.1364/OE.19.019875


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Abstract

Detailed numerical analyses are presented of a continuous wave (cw), single spatial mode alkali vapor laser pumped by a diffraction-limited Ti: Sapphire laser. These analyses provide insight into the operation of alkali vapor lasers to aid in the development of high power, diode laser pumped alkali vapor lasers. It is demonstrated that in the laser considered the laser spatial pattern is significantly changed after each pass through the gain medium, and the laser spatial pattern in steady state operation is also very different from that of the passive cavity mode. According to the calculation, lasing significantly improves the pump absorption efficiency and changes the absorbed pump distribution. The effect of varying the transverse size of the pumped region is also analyzed and an optimum pump beam waist radius is demonstrated. In addition, the shift of the pump beam waist location is also studied. The computation method and its convergence behavior are also described in detail.

© 2011 OSA

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(140.1340) Lasers and laser optics : Atomic gas lasers
(140.3410) Lasers and laser optics : Laser resonators
(140.3430) Lasers and laser optics : Laser theory

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 3, 2011
Revised Manuscript: September 2, 2011
Manuscript Accepted: September 3, 2011
Published: September 26, 2011

Citation
Hong Shu, Ying Chen, Michael Bass, J. Fernando Monjardin, and Jochen Deile, "Numerical modeling of alkali vapor lasers," Opt. Express 19, 19875-19885 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-21-19875


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References

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