Efficient Ti:LiNbO3 ridge waveguide lasers: investigation of Er and Yb:Er doped waveguides pumped at 980nm and 1486nm

Efficient Ti:LiNbO3 ridge waveguide lasers: investigation of Er and Yb:Er doped waveguides pumped at 980nm and 1486nm
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高效 Ti:LiNbO3 脊形波导激光器:研究在 980nm 和 1486nm 泵浦的 Er 和 Yb:Er 掺杂波导

DOI:
10.1117/12.2289980
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
D. Kip
D. Kip
中科院分区:
--
文献类型:
--
作者:
D. Brüske;S. Suntsov;M. F. Volk;C. E. Rüter;D. Kip

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首次报道了泵浦波长为980.5 nm和1486 nm的x切同组分LiNbO_3基片上的掺Er-Yb共掺钛离子扩散脊形光放大器。在980.5 nm耦合泵浦功率为145 mW时,在2.3 cm长的Yb:Er:Ti:LiNbO_3脊形光波导中测得2.8d B/cm的内增益,这是目前报道的在980 nm激发下最高的掺铒LiNbO_3光波导放大器的增益。当耦合泵浦功率为200 mW时,在1486 nm处实现了3.2dB/cm的内增益,也超过了在该波长泵浦的Er:Ti:LiNbO_3光波导放大器的最佳文献值。此外,我们还报道了一种在LiNbO_3中对脊形波导进行局部周期极化(周期分别为30μm和18.4μm)的方法,该方法允许将来在同一衬底上集成波导激光器和非线性变频器。
Erbium-ytterbium-codoped titanium in-diffused ridge waveguides optical amplifiers in x-cut congruent LiNbO3substrates pumped at 980.5 nm and 1486 nm are reported for the first time. An internal gain of 2.8 dB/cm has been measured in 2.3 cm long Yb:Er:Ti:LiNbO3ridge waveguides for the coupled pump power of 145 mW at 980.5 nm, which is the highest gain ever reported, to the best of our knowledge, for erbium-based LiNbO3waveguide amplifiers under 980 nm excitation. Furthermore, we realized an internal gain of 3.2 dB/cm for the coupled pump power of 200 mW at 1486 nm, which also exceeds the best literature values for Er:Ti:LiNbO3waveguide amplifiers pumped at this wavelength. In addition, we report on a method for local periodic poling (periods of 30 μm and 18.4 μm) of ridge waveguides in LiNbO3, which allows for future integration of waveguide lasers and nonlinear frequency converters on the same substrate.
X 切割 LiNbO3 中的 70+ μm 深域反转及其在高速带通集成光调制器中的应用
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