基于薄膜铌酸锂的电光可重构双模（解）复用器。

Electro-optic reconfigurable two-mode (de)multiplexer on thin-film lithium niobate.

作者信息

Zhang Mengruo, Chen Kaixin, Wang Mengke, Wu Jieyun, Chiang Kin Seng

出版信息

Opt Lett. 2021 Mar 1;46(5):1001-1004. doi: 10.1364/OL.417423.

Abstract

We propose and demonstrate a compact electro-optic reconfigurable two-mode (de)multiplexer using the configuration of cascaded Mach-Zehnder interferometers formed on thin-film X-cut lithium niobate on silica. Our fabricated device, which is 9.5-mm long, can spatially switch between the two transverse-electric modes with an efficiency higher than 98% from 1530-1560 nm and beyond at an applied voltage of 6.5 V. The switching speed is faster than 30 ns. Our proposed mode switch could find applications in fiber-based and on-chip mode-division-multiplexing systems.

摘要

我们提出并展示了一种紧凑的电光可重构双模（解）复用器，它采用在二氧化硅上的X切薄膜铌酸锂上形成的级联马赫-曾德尔干涉仪结构。我们制造的器件长度为9.5毫米，在6.5伏的施加电压下，能够在1530 - 1560纳米及以上波长范围内，以高于98%的效率在两种横向电模式之间进行空间切换。其开关速度快于30纳秒。我们提出的模式开关可应用于基于光纤和片上模式分割复用系统。