Dual-Mode Variable Optical Attenuator Based on Balanced Multimode Power Splitters on SOI Platform

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-07-15 DOI:10.1109/LPT.2024.3427699

Xin Xu;Siwei Liu;Xin Fu;Jiaqi Niu;Lin Yang

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引用次数: 0

Abstract

We designed and experimentally demonstrated the dual-mode variable optical attenuator on the silicon-on-insulator platform. The mode-insensitive Mach-Zehnder interferometer structure is achieved by optimizing the initial phase difference, the splitting coefficient of dual-mode splitters, and the thermal modulation efficiency of the phase shifters, ensuring synchronous attenuation of the

${\mathrm {TE}}_{0}$

and

${\mathrm {TE}}_{1}$

modes. At 1550 nm wavelength, experimental results show that the maximum attenuation depths of

${\mathrm {TE}}_{0}$

and

${\mathrm {TE}}_{1}$

modes are 31.33 dB and 20.81 dB, respectively, with driving powers of 23.4 mW and 22.1 mW. Additionally, the measured response time of both modes is under

$26~\mu $

s. The device is promising for applications in mode-insensitive optical interconnects.

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基于 SOI 平台平衡多模功分器的双模可变光衰减器

我们在硅衬底平台上设计并实验演示了双模可变光衰减器。通过优化初始相位差、双模分光器的分光系数和移相器的热调制效率，实现了模式不敏感的马赫-泽恩德干涉仪结构，确保了 ${mathrm {TE}}_{0}$ 和 ${mathrm {TE}}_{1}$ 模式的同步衰减。实验结果表明，在 1550 nm 波长下，驱动功率分别为 23.4 mW 和 22.1 mW 时，${mathrm {TE}}_{0}$ 和 ${mathrm {TE}}_{1}$ 模式的最大衰减深度分别为 31.33 dB 和 20.81 dB。此外，两种模式的测量响应时间均小于 26~\mu $ s。该器件有望应用于对模式不敏感的光互连。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.