Ahmmed Kazi Tanvir, Chan Hau Ping, Li Binghui
Opt Lett. 2017 Sep 15;42(18):3686-3689. doi: 10.1364/OL.42.003686.
We report a unique concept to implement a high-order mode pass filter using mode converters. Our proposed design method implements a high-order mode pass filter of any order, uses different mode converters available, and applies to a variety of planar lightwave circuit material platforms. We fabricate a broadband fundamental mode filter device using a Mach-Zehnder interferometer and Y-junctions to demonstrate our idea. The performance of the fabricated device is demonstrated experimentally in the wavelength range of 1.530-1.565 μm (C-band). This filter exhibits a simulated extinction ratio of 37 dB with an excess loss of 0.52 dB for the first-order mode transmission.
我们报告了一种使用模式转换器实现高阶模式滤波器的独特概念。我们提出的设计方法可实现任意阶数的高阶模式滤波器，利用现有的不同模式转换器，并适用于各种平面光波电路材料平台。我们使用马赫-曾德尔干涉仪和Y型结制造了一种宽带基模滤波器器件来证明我们的想法。在1.530 - 1.565μm（C波段）波长范围内通过实验证明了所制造器件的性能。该滤波器在一阶模式传输时，模拟消光比为37dB，额外损耗为0.52dB。
