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Applied Optics

Applied Optics


  • Vol. 35, Iss. 21 — Jul. 20, 1996
  • pp: 4159–4165

Chromium-doped forsterite: the influence of crystal characteristics on laser performance

I. T. McKinnie, L. A. W. Gloster, Z. X. Jiang, and T. A. King  »View Author Affiliations

Applied Optics, Vol. 35, Issue 21, pp. 4159-4165 (1996)

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A study of the dependence of the gain-switched laser operation of chromium forsterite on crystal parameters is presented. Results are reported for a wide range of chromium (IV) ion concentration: 0.02–0.12 at. % and 12–41 figure of merit, with emphasis on performance of the recently developed material with a dopant level of >0.10 at. %. Threshold and slope efficiency calculations are compared with measured performance for all crystals, with variation of pump polarization and output coupling. With 3% output coupling, the lowest threshold of 1.8 mJ, and highest slope efficiency of 13% were measured for a short, high-dopant-level crystal. With 33% output coupling a slope efficiency of 44% was measured for this crystal. Results demonstrate the considerable potential of short, high-dopant-level crystals for applications such as amplification, diode pumping, and narrow-bandwidth operation.

© 1996 Optical Society of America

Original Manuscript: August 14, 1995
Revised Manuscript: January 29, 1996
Published: July 20, 1996

I. T. McKinnie, L. A. W. Gloster, Z. X. Jiang, and T. A. King, "Chromium-doped forsterite: the influence of crystal characteristics on laser performance," Appl. Opt. 35, 4159-4165 (1996)

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