Greater than 20%-efficient frequency doubling of 1532-nm nanosecond pulses in quasi-phase-matched germanosilicate optical fibers.
Greater than 20%-efficient frequency doubling of 1532-nm nanosecond pulses in quasi-phase-matched germanosilicate optical fibers.
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大于%20%2020%-效率%20频率%20倍增%20of%201532-nm%20纳秒%20脉冲%20in%20准相位匹配%20德国硅酸盐%20光学%20光纤。
DOI：
10.1364/ol.24.000208
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发表时间：
1999
期刊：
影响因子：
3.6
通讯作者：
J. Levenson
中科院分区：
文献类型：
--
作者：
V. Pruneri;G. Bonfrate;P. Kazansky;D. Richardson;N. Broderick;J. de Sandro;C. Simonneau;P. Vidakovic;J. Levenson
我们利用热极化和标准光刻法制作的周期电极在D型锗硅酸盐光纤中制作了二阶非线性光栅。这些光栅，这是高达75毫米长，用于有效的准相位匹配倍频的1.532妈妈纳秒脉冲从高功率掺铒光纤放大器。平均二次谐波功率高达6.8 mW，峰值功率大于1.2 kW，在766 nm处产生的，与平均和峰值转换效率高达21%和30%，分别。
We fabricated second-order nonlinear gratings in D-shaped germanosilicate fibers, using thermal poling and periodic electrodes defined by standard photolithography. These gratings, which are up to 75 mm long, were used for efficient quasi-phase-matched frequency doubling of 1.532-mum nanosecond pulses from a high-power erbium-doped fiber amplifier. Average second-harmonic powers as high as 6.8 mW and peak powers greater than 1.2 kW at 766 nm were generated, with average and peak conversion efficiencies as high as 21% and 30%, respectively.