| Autor: |
Singer S, Xu Y, Skacel ST, Bao Y, Zwickel H, Maier P, Freter L, Dietrich PI, Kaschel M, Menzel C, Randel S, Freude W, Koos C |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2022 Dec 19; Vol. 30 (26), pp. 46564-46574. |
| DOI: |
10.1364/OE.456952 |
| Abstrakt: |
We demonstrate an optical phased-array equipped with a 3D-printed facet-attached element for shaping and deflection of the emitted beam. The beam shaper combines freeform refractive surfaces with total-internal-reflection mirrors and is in-situ printed to edge-emitting waveguide facets using high-resolution multi-photon lithography, thereby ensuring precise alignment with respect to on-chip waveguide structures. In a proof-of-concept experiment, we achieve a grating-lobe free steering range of ±30 ∘ and a full-width-half-maximum beam divergence of approximately 2 ∘ . The concept opens an attractive alternative to currently used grating structures and is applicable to a wide range of integration platforms. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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