| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 05001 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Nanophotonics | |
| DOI | https://doi.org/10.1051/epjconf/202533505001 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533505001
Computer generated volume holograms fabricated on a coreless fiber tip by two photon polymerization
1 BIAS-Bremer Institut für angewandte Strahltechnik, Klagenfurter Str.5, 28359 Bremen, Germany
2 Universität Bremen, Fachbereich Physik/Elektrotechnik, Otto-Hahn-Allee 1, 28359 Bremen, Germany
3 Universität Bremen, MAPEX – Center for Materials and Processes, Am Fallturm 1, 28359 Bremen, Germany
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
Computer-generated volume holograms (CGVHs) contain 3D refractive index modulations designed to create complex-shaped wave fields for various optical applications. Two-photon polymerization (2PP) lithography is a single-step fabrication method for such CGVHs that allows the tailoring of refractive index distributions by applying locally varying printed powers. In this work, we fabricate 3D Ronchi gratings on top of modified optical fiber using two different printing powers. To expand the beam to illuminate the whole grating structure we use coreless termination fiber (CTF). This approach paves the way for fabricating complex CGVHs on the fiber tip by tailoring refractive index distributions through controlled power variations.
© The Authors, published by EDP Sciences, 2025
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