Integrating micro-optical components at the end facet of an optical fiber enables compact optics to shape the output beam (e.g. collimating, focusing, and coupling to free space elements or photonic integrated circuits). However, the scalability of this approach is a longstanding challenge as these components must be aligned onto individual fiber facets. In this paper, we propose a socket that enables easy slotting of fibers, self-alignment, and coupling onto micro-optical components. This integrated socket can be detached from the substrate upon fiber insertion to create a stand-alone optical system. Fabrication is done using nanoscale 3D printing via two-photon polymerization lithography onto glass substrates, which allows multiple sockets to be patterned in a single print. We investigated variations in socket design and evaluated the performance of optical elements for telecom wavelengths. We obtained an alignment accuracy of ∼3.5 m. These socket designs can be customized for high efficiency chip to fiber coupling and extended to other spectral ranges for free-form optics.

在光纤的端面上集成微光学组件可以使紧凑型光学器件对输出光束进行整形（例如，将准直，聚焦和耦合到自由空间元件或光子集成电路）。但是，这种方法的可扩展性是一个长期的挑战，因为这些组件必须对齐到各个光纤端面上。在本文中，我们提出了一种插座，该插座使光纤易于开槽，自动对准并耦合到微光学组件上。插入光纤后，可以从基板上拆下此集成插座，以创建独立的光学系统。使用纳米级3D打印技术，通过双光子聚合光刻技术在玻璃基板上进行制造，从而可以在一次打印中对多个承窝进行构图。我们研究了插座设计的变化并评估了光学元件在电信波长下的性能。我们获得了约3.5的对准精度米 可以定制这些插座设计，以实现高效率的芯片到光纤耦合，并扩展到自由光谱光学器件的其他光谱范围。