概括
我们开发了一种用于薄膜基酸盐 (TFLN) 设备的新型极化不敏感的纤维对芯片边缘合器. 这种O带边缘合器实现了低合损失和高失调耐受性,使其能够与单模纤维集成.
科学领域:
- 光子学和光学工程的工程.
- 材料科学 材料科学 材料科学
- 集成光学 集成光学 集成光学
背景情况:
- 薄膜酸 (TFLN) 是集成光子设备的关键材料.
- 有效的光纤-芯片合对于实际的光子集成电路至关重要.
- 在许多光子应用中,极化不敏感的操作是非常理想的.
研究的目的:
- 提出和演示一种新的极化不敏感的光纤到芯片边缘合器.
- 为了实现低插入损失和高失调容忍度的O频段操作.
- 为了使TFLN光子电路与标准单模纤维无集成.
主要方法:
- 在X切TFLN上设计和制造一个三段宽度渐变的波导边缘合器.
- 使用二氧化覆盖,以高效的模式与单模式纤维匹配.
- 对合损失,偏振依赖损失 (PDL) 和错位容忍的实验性表征.
主要成果:
- 实现了每面TE0的0.9dB和TM0模式的1.1dB的最小合损失.
- 在1260-1340nm波长范围内,证明极化依赖损失 (PDL) 在0.5dB以下.
- 获得了±2μm (Z方向) 和±1.5μm (X方向) 的大误调公差,罚款为1dB.
结论:
- 本文介绍了首个与单模光纤兼容的TFLN上的O频段边缘合器.
- 开发的边缘合器表现出卓越的性能,包括极化不敏感性和高合效率.
- 该设备具有集成到先进的TFLN极化多样性设备和系统的巨大潜力.
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