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Optics Letters

Optics Letters

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  • Vol. 30, Iss. 8 — Apr. 15, 2005
  • pp: 851–853

Near-infrared laser operation of Cr3+ centers in chromium-doped LiInGeO4 and LiScGeO4 crystals

M. Sharonov, V. Petricevic, A. Bykov, and R. R. Alfano  »View Author Affiliations


Optics Letters, Vol. 30, Issue 8, pp. 851-853 (2005)
http://dx.doi.org/10.1364/OL.30.000851


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Abstract

Laser action has been demonstrated in two new tunable Cr3+-doped crystals. Absorption, emission, and excitation measurements for various crystal orientations have been performed for chromium-doped LiInGeO4 and LiScGeO4 single crystals. From the spectroscopic measurements, two optical active centers were identified: tetrahedrally coordinated Cr4+ and octahedrally coordinated Cr3+. Gain-switched, tunable laser operation of Cr3+ centers has been demonstrated in both crystals. An ultrawide tuning range from 1150 to 1480 nm for LiInGeO4 and 1220-1380 nm for LiScGeO4 has been achieved. To our knowledge this is the widest bandwidth and the most near-infrared shifted wavelength range for lasing ever demonstrated for Cr3+ ions.

© 2005 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(160.6990) Materials : Transition-metal-doped materials
(300.6250) Spectroscopy : Spectroscopy, condensed matter

Citation
M. Sharonov, V. Petricevic, A. Bykov, and R. R. Alfano, "Near-infrared laser operation of Cr3+ centers in chromium-doped LiInGeO4 and LiScGeO4 crystals," Opt. Lett. 30, 851-853 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-8-851

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