Optical gain and laser generation in bismuth-doped silica fibers free of other dopants.
Optical gain and laser generation in bismuth-doped silica fibers free of other dopants.
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DOI：
10.1364/ol.36.000166
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发表时间：
2011-01
期刊：
影响因子：
3.6
通讯作者：
I. Bufetov;M. Melkumov;S. Firstov;A. Shubin;S. Semenov;V. Vel'miskin;A. Levchenko;E. Firstova;E. Dianov
中科院分区：
文献类型：
--
作者：
I. Bufetov;M. Melkumov;S. Firstov;A. Shubin;S. Semenov;V. Vel'miskin;A. Levchenko;E. Firstova;E. Dianov
在400-1600 nm宽波长范围内，获得了无其它掺杂剂的掺铋石英光纤的发光发射和激发光谱，并绘制了发光-激发图。确定了这种纤维中铋活性中心的主要低能能级。据我们所知，这是第一次在这种光纤中获得光增益和激光。在抽运功率为340 mW时，获得了8 dB的增益，并获得了40 mW的1460 nm连续光纤激光器输出，效率为1.3%。
Luminescence emission and excitation spectra of bismuth-doped silica optical fibers free of other dopants have been obtained to construct an emission-excitation map in a wide wavelength range of 400-1600 nm. The main low-lying energy levels of the bismuth active centers in such fibers have been determined. For the first time (to our knowledge), optical gain and lasing have been obtained in such fibers. A gain of 8 dB has been achieved with a pump power of 340 mW, and a cw fiber laser emitting at 1460 nm with an output power of 40 mW and an efficiency of ≈3% has been created.