Broadband SiN Interleaver With a Ring Assisted MZI Using a Tapered MMI Coupler

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2024-08-16 DOI:10.1109/JPHOT.2024.3444825

Laaya Sabri;Ranim El Ahdab;Frederic Nabki;Michaël Ménard

引用次数: 0

Abstract

We present an interleaver using a Ring-Assisted Mach-Zehnder Interferometer (MZI) where the ring is coupled to one arm of the MZI through a linearly tapered multimode interferometer (MMI), harnessing the advantages of both the MMI coupler and ring assisted MZI to optimize performance. The tapered MMI coupler extends the operational bandwidth of the interleaver over more than 85 nm due to its wavelength-insensitive response and precisely tailored coupling ratio. Furthermore, it removes the need for thermal tuning of the coupling region, which reduces the power consumption and overall size of the device. The experimental performance of a silicon nitride based interleaver with a channel spacing of 0.8 nm in L-band is reported. The device shows a crosstalk level below 15 dB over a wavelength range of 85 nm.

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使用锥形 MMI 耦合器的环形辅助 MZI 宽带 SiN 交织器

我们提出了一种使用环形辅助马赫-泽恩德干涉仪（MZI）的交织器，其中环形通过线性锥形多模干涉仪（MMI）耦合到 MZI 的一个臂上，利用 MMI 耦合器和环形辅助 MZI 的优势优化性能。锥形多模干涉仪耦合器具有对波长不敏感的响应和精确定制的耦合比，从而将交织器的工作带宽扩展到 85 nm 以上。此外，它还无需对耦合区进行热调整，从而降低了功耗和器件的整体尺寸。报告了基于氮化硅的交织器在 L 波段的实验性能，其通道间距为 0.8 nm。该器件在 85 nm 波长范围内的串扰水平低于 15 dB。

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 Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.