DOAJ Open Access 2022

A Theoretical Description of Node-Aligned Resonant Waveguide Gratings

Maik Meudt Andreas Henkel Maximilian Buchmüller Patrick Görrn

Abstrak

Waveguide gratings are used for applications such as guided-mode resonance filters and fiber-to-chip couplers. A waveguide grating typically consists of a stack of a single-mode slab waveguide and a grating. The filling factor of the grating with respect to the mode intensity profile can be altered via changing the waveguide’s refractive index. As a result, the propagation length of the mode is slightly sensitive to refractive index changes. Here, we theoretically investigate whether this sensitivity can be increased by using alternative waveguide grating geometries. Using rigorous coupled-wave analysis (RCWA), the filling factors of the modes of waveguide gratings supporting more than one mode are simulated. It is observed that both long propagation lengths and large sensitivities with respect to refractive index changes can be achieved by using the intensity nodes of higher-order modes.

Topik & Kata Kunci

Optics. Light Applied optics. Photonics

Penulis (4)

Maik Meudt

Andreas Henkel

Maximilian Buchmüller

Patrick Görrn

Format Sitasi

APA MLA BibTeX

Meudt, M., Henkel, A., Buchmüller, M., Görrn, P. (2022). A Theoretical Description of Node-Aligned Resonant Waveguide Gratings. https://doi.org/10.3390/opt3010008

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.3390/opt3010008
Akses: Open Access ✓