Cheng Tonglei, Tanaka Shunta, Tuan Tong Hoang, Suzuki Takenobu, Ohishi Yasutake
Opt Lett. 2017 Jun 15;42(12):2354-2357. doi: 10.1364/OL.42.002354.
All-optical dynamic photonic bandgap (PBG) control by an optical Kerr effect (OKE) is investigated in an all-solid double-clad tellurite photonic bandgap fiber (PBGF) which is fabricated based on TeO-LiO-WO-MoO-NbO (TLWMN, high-index rod) glass, TeO-ZnO-NaO-LaO (TZNL, inner cladding) glass, and TeO-ZnO-LiO-KO-AlO-PO (TZLKAP, outer cladding) glass. To the best of our knowledge, this is the first demonstration of all-optical dynamic PBG control in optical fibers. This PBGF has a high nonlinear refractive index which can lead to a significant OKE and induce the generation of all-optical dynamic PBG control. The transmission spectrum is simulated with the pump peak power increasing from 0 to 300 kW, which shows an obvious PBG shift. Dynamic PBG control is demonstrated both numerically and experimentally at the pump peak power of 200 kW (ON or OFF) at the signal of 1570 nm.
在基于TeO-LiO-WO-MoO-NbO（TLWMN，高折射率棒）玻璃、TeO-ZnO-NaO-LaO（TZNL，内包层）玻璃和TeO-ZnO-LiO-KO-AlO-PO（TZLKAP，外包层）玻璃制造的全固态双包层碲酸盐光子带隙光纤（PBGF）中，研究了通过光学克尔效应（OKE）实现的全光动态光子带隙（PBG）控制。据我们所知，这是光纤中全光动态PBG控制的首次演示。这种PBGF具有高非线性折射率，可导致显著的OKE并引发全光动态PBG控制的产生。随着泵浦峰值功率从0增加到300 kW对传输光谱进行了模拟，结果显示出明显的PBG位移。在1570 nm信号处，在200 kW（开或关）的泵浦峰值功率下，通过数值和实验证明了动态PBG控制。
