Affiliation:
1. Institute of Microelectronics and Photonics
2. Poznan Science and Technology Park
Abstract
We designed and fabricated grism structures on the end-face of an optical fiber and experimentally characterized them. A UV-curable ionic-liquid polymer resin, well-suited for nanoimprinting, was used to fabricate the grism structures with grating pitches of 1.8–3 µm and prism apex angle reaching 30–40°. The structures can propagate 1st order of diffraction peaks along the fiber axis at 520, 660, and 830 nm wavelengths. The experimental and numerically simulated results of far-field intensity distribution revealed high agreement. Hence, based on the numerical simulation, we proposed grism structure designs for in-line propagation of first-order diffraction at wavelengths of λ = 1300 − 2000 nm utilizing chalcogenide glass fibers.
Funder
Narodowe Centrum Nauki
Fundacja na rzecz Nauki Polskiej
Wroclawskie Centrum Sieciowo-Superkomputerowe, Politechnika Wroclawska
Subject
Atomic and Molecular Physics, and Optics