Author Affiliations
Abstract
1 School of Science, Shandong Jianzhu University, Jinan 250101, China
2 Shandong Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China
3 Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
4 School of Physics, Shandong University, Jinan 250100, China
Lithium niobate (, LN) channel and ridge waveguides have been successfully fabricated by He ion implantation, which has energy of 500 keV and fluence of and is combined with lithography and the precise diamond dicing technique. The refractive index profile of the annealed LN planar waveguide was reconstructed. The propagation loss of the channel waveguide with a width of 10 µm and that of the ridge waveguides with widths of 25 µm and 15 µm were investigated by the end-face coupling method. In our work, the factors that affect the waveguide properties of channel and ridge waveguides were revealed.
lithium niobate waveguides ion implantation ridge waveguide channel waveguide Chinese Optics Letters
2022, 20(7): 071301
光纤通信技术和网络国家重点实验室 武汉邮电科学研究院， 湖北 武汉 430074
无源光网络(PON)是一种点到多点的光接入技术，采用传统的光时域反射仪(OTDR)技术对PON的各分支光路进行监测出现了技术瓶颈。针对这一问题，文章分析了现有几种解决方案的不足之处，在此基础上，提出了一种以光供能方式驱动光开关测试的新方案，并详细描述了该方案的实现过程。
无源光网络 光缆监测 光时域反射仪 光供能 PON cable monitoring OTDR light supply
