1. (INVITED)Miniaturized lenses integrated on optical fibers: Towards a new milestone along the lab-on-fiber technology roadmap
- Author
-
Federica Piccirillo, Martino Giaquinto, Armando Ricciardi, and Andrea Cusano
- Subjects
Flat Lenses ,Optical fibers ,Lab-on-Fiber ,Refractive lenses ,Diffractive lenses ,Resonant lenses ,Optics. Light ,QC350-467 - Abstract
Optical fibers and lenses are key components in many optical systems. Lenses used to couple light into the fiber or to tailor the output beam coming out from the fiber itself typically involve bulk optical schemes and complex packaging that limit the compactness and flexibility of the overall system. In the last years, new technological solutions based on the lab-on-fiber technology have been proposed to directly integrate optical components on the fiber end-face with a monolithic approach. In this review, we provide a detailed state of the art of the miniaturized lenses integrated on the end-face of optical fibers reported so far. The proposed devices have been divided into three main categories (refractive, diffractive and resonant including metasurfaces) according to their working principle. A critical discussion on the different categories of lenses is given, also providing a comparison in terms of ease of design and fabrication, application flexibility, compactness, scientific and technological maturity, and time to market. more...
- Published
- 2022
- Full Text
- View/download PDF