Geometrical tolerance of optical fiber and laser diode for passive alignment using LTCC technology
Geometrical tolerance of optical fiber and laser diode for passive alignment using LTCC technology
复制标题
使用 LTCC 技术进行无源对准的光纤和激光二极管的几何公差
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Hein
中科院分区：
文献类型：
--
作者：
Sumy Mathew;Steffen Spira;R. Stephan;T. Welker;N. Gutzeit;J. Muller;M. Hein
对高容量通信链路需求的高涨导致了光纤通信领域的快速增长。卫星通信的最新进展要求以最小的损耗传输高频信号，人们认为光纤上的无线电是这种宽带模拟应用的解决方案。考虑到低温共烧陶瓷多层技术提供的许多优点，将该技术用于光纤与激光二极管的无源对准，最终与微波频率的电光调制器混合集成是有希望的。本文分析了在光链路中基于强度调制和直接检测的光功率有效耦合到光纤中的必要性。我们还估计了对准公差为+/-20 μm，这可以利用最新的陶瓷多层技术来实现。
The upsurge in the demand for high capacity communication links results in a rapid growth in the field of optical fiber communication. Recent advances in satellite communications urge for the transmission of high-frequency signals with minimal losses, and it is regarded that radio-over-fiber is the solution for such broadband analog applications. Considering the many advantages offered by low-temperature co-fired ceramics multilayer technology, it is promising to use this technology for passive alignment of an optical fiber to a laser diode, eventually hybrid-integrated with an electro-optical modulator for microwave frequencies. In this paper, we analyzed the necessity of efficient coupling of optical power into the fiber in an optical link, based on intensity modulation and direct detection. We also estimated the alignment tolerance as +/-20 μm, which can be realized exploiting recent advances of the ceramic multilayer technology.