Near-infrared laser operation of Cr3+ centers in chromium-doped LiInGeO4 and LiScGeO4 crystals.
Near-infrared laser operation of Cr3+ centers in chromium-doped LiInGeO4 and LiScGeO4 crystals.
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DOI：
10.1364/ol.30.000851
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发表时间：
2005-04
期刊：
影响因子：
3.6
通讯作者：
M. Sharonov;V. Petričević;A. Bykov;R. Alfano
中科院分区：
文献类型：
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作者：
M. Sharonov;V. Petričević;A. Bykov;R. Alfano
激光作用已在两种新的可调Cr 3+掺杂晶体中得到证实。吸收，发射和激发测量各种晶体取向已进行铬掺杂LiInGeO 4和LiScGeO 4单晶。从光谱测量，确定了两个光学活性中心：四面体配位的Cr 4+和八面体配位的Cr 3+。增益开关，可调谐激光操作的Cr 3+中心已被证明在这两种晶体。LiInGeO_4的调谐范围为1150 ~ 1480 nm，LiScGeO_4的调谐范围为1220-1380 nm。据我们所知，这是最宽的带宽和最近的红外线移动波长范围的激光曾经证明的铬离子。
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.