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Optics Letters

Optics Letters


  • Vol. 19, Iss. 13 — Jul. 1, 1994
  • pp: 960–962

Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range

K. Möllmann, M. Schrempel, Bing-Kun Yu, and W. Gellermann  »View Author Affiliations

Optics Letters, Vol. 19, Issue 13, pp. 960-962 (1994)

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We report synchronously mode-locked subpicosecond and continuous-wave color-center laser operation in the 1.8–2.4-μm wavelength range. For active materials we use (F2+)H centers in KBr:O2 and (F2+)AH centers in KBr:Na+:O2 crystals. When the lasers are pumped with a continuous-wave or mode-locked NaCl (F2+)H-center laser in a cascaded configuration, laser operation is obtained over the combined tuning range of 1.8–2.4 μm, with output powers as high as 150 mW. When synchronously mode locked with ~5-ps pump pulses, both KBr lasers yield typically ~1-ps pulse widths over the entire tuning range. Pulses as short as ~400 fs could be obtained at the expense of higher noise levels.

© 1994 Optical Society of America

Original Manuscript: February 8, 1994
Published: July 1, 1994

K. Möllmann, M. Schrempel, Bing-Kun Yu, and W. Gellermann, "Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range," Opt. Lett. 19, 960-962 (1994)

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