Innovative Photocurable Resin-Based Cylindrical Microlens Fiber for Silicon Photonics Coupling

IF 2.5 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Photonics Technology Letters Pub Date : 2024-12-30 DOI:10.1109/LPT.2024.3524274

Chien-Wei Huang;Kai-Chieh Chang;Po-Lin Huang;Zhi Ting Ye;Chun-Nien Liu;Wood-Hi Cheng

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Abstract

High coupling efficiency with passive alignment of cylindrical microlens fiber fabricated by photocurable resin with simple process to achieve desired lens structure is presented. Optimal lens dimensions of 4-

$\mu $

m upper base, 9-

$\mu $

m lower base, and 12-

$\mu $

m height were determined by simulation software. Despite mode conversion losses, maximum coupling efficiency reached 71.2%. Experimental results closely matched simulations of 67.6% coupling efficiency. A

$1.5~\mu $

m offset in the X-Y plane, defined within a Cartesian coordinate system, resulted in a measured 3-dB efficiency drop. Compared to microlens fiber with grinding processes, the microlens fibers offer improved efficiency and tolerance. The proposed microlens fibers with array setups could reduce alignment time and cost during packaging, suggesting applications in silicon light modules, optical radar, and biomedical measurements.

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用于硅光子耦合的新型光固化树脂基圆柱微透镜光纤

提出了一种采用光固化树脂制备的具有高耦合效率和被动对准的圆柱形微透镜纤维，其工艺简单，可达到理想的透镜结构。通过仿真软件确定了4- $\mu $ m上底座、9- $\mu $ m下底座和12- $\mu $ m高度的最佳透镜尺寸。尽管存在模式转换损耗，但最大耦合效率达到71.2%。实验结果与模拟结果非常吻合，耦合效率为67.6%。在笛卡尔坐标系中定义的X-Y平面上的1.5~\mu $ m偏移导致测量到的3 db效率下降。与磨削加工的微透镜纤维相比，微透镜纤维提供了更高的效率和公差。采用阵列设置的微透镜光纤可以减少封装过程中的对准时间和成本，建议在硅光模块，光学雷达和生物医学测量中应用。

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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.

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