基于tfln的紧凑型同步极化等功率分束集成器件的优化设计与仿真

IF 2.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-07-17 DOI:10.1109/JPHOT.2025.3590348

Wenxuan Pei;Zhen Zhou;Xinyu Li;Yang Lu;Wentao Li;Anxu Huang;Di Feng;Hongchen Jiao;Lishuang Feng

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引用次数: 0

摘要

我们提出了一种紧凑的薄膜铌酸锂集成器件，同时实现高偏振消光比和等功率光束分裂，使用两个优化的反向锥形渐变模式转换器与多模干涉耦合器单片集成。转换器的几何轮廓是通过一种开发的分析方法来设计的，该方法可以评估本地模式转换效率，从而为不同的应用提供灵活的几何定制。在此基础上，进行了性能仿真和优化。所提出的集成器件具有高消光比、宽带宽和制造公差，特别适用于包括光纤陀螺仪在内的精密光学传感应用。

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Optimized Design and Simulation of a Compact TFLN-Based Integrated Device for Simultaneous Polarizing and Equal-Power Beam Splitting

We present a compact thin-film lithium niobate integrated device simultaneously achieving high polarization extinction ratio and equal-power beam splitting, using two optimized oppositely-tapered graded-slope mode converters monolithically integrated with a multimode interference coupler. The converter’s geometric profile is designed through a developed analytical method that evaluates local mode conversion efficiency, enabling flexible geometry customization for diverse applications. Based on this analytical method, the performance simulations and optimization are presented. The proposed integrated device’s high extinction ratio, broad bandwidth, and fabrication tolerance show particular promise for precision optical sensing applications including fiber-optic gyroscopes.

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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.