Silicon integrated Bi2TbFe5O12 thin films for O-band nonreciprocal photonic device applications

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2024-02-26 DOI:10.1364/ome.519523

Tianchi Zhang, Yucong Yang, Di Wu, Junxian Wang, Zixuan Wei, Wei Yan, and Lei Bi

引用次数: 0

Abstract

Silicon photonics for data communication requires key components in the O-band (1260 nm−1310 nm). However, very few studies report silicon integrated magneto-optical thin films operating at this wavelength range. In this study, we report a method to fabricate polycrystalline Bi₂Tb₁Fe₅O₁₂ thin films on silicon substrates for O-band nonreciprocal photonic device applications. The films are fabricated by magnetron sputtering at room temperature followed by rapid thermal annealing for crystallization. Pure garnet phase is stabilized by a Y₃Fe₅O₁₂ seed layer on silicon. The film deposited on silicon-on-insulator (SOI) waveguides showed saturation Faraday rotation of −3300 ± 183 deg/cm, propagation loss of 53.3 ± 0.3 dB/cm and a high figure of merit of 61.9 ± 3.8 deg/dB at 1310 nm wavelength, demonstrating promising potential for O-band integrated nonreciprocal photonic devices.

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用于 O 波段非互惠光子器件应用的硅集成 Bi2TbFe5O12 薄膜

用于数据通信的硅光子学需要 O 波段（1260 纳米-1310 纳米）的关键元件。然而，很少有研究报告称硅集成磁光薄膜可在此波长范围内工作。在本研究中，我们报告了一种在硅衬底上制造多晶 Bi2Tb1Fe5O12 薄膜的方法，用于 O 波段非互惠光子器件应用。薄膜是在室温下通过磁控溅射制造的，然后经过快速热退火结晶。纯石榴石相由硅上的 Y3Fe5O12 种子层稳定。沉积在硅绝缘体（SOI）波导上的薄膜显示出 -3300 ± 183 度/厘米的饱和法拉第旋转、53.3 ± 0.3 分贝/厘米的传播损耗以及在 1310 纳米波长下 61.9 ± 3.8 分贝/分贝的高优点，显示出 O 波段集成非互惠光子器件的巨大潜力。

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

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.