Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching
N. Üstün, H. Farheen, M. Hammer, J. Förstner, Journal of the Optical Society of America B 41 (2024) 2077.
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Abstract
Lateral leakage of TM modes in dielectric optical waveguides of rib/ridge or strip-loaded types can be fully suppressed, if the waveguide core is formed not through a strip that protrudes at one side (up) from the remaining lateral guiding slab, but through parallel strips on both sides (up and down), such that the resulting cross section becomes vertically symmetric. The fairly general arguments underlying the leakage suppression apply to TM modes of all orders simultaneously, and are independent of wavelength. These plus-shaped waveguides support strictly guided, non-leaky TM modes for, in principle, arbitrarily shallow etching.
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Journal of the Optical Society of America B
Volume
41
Issue
9
Page
2077
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Üstün N, Farheen H, Hammer M, Förstner J. Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching. Journal of the Optical Society of America B. 2024;41(9):2077. doi:10.1364/josab.528729
Üstün, N., Farheen, H., Hammer, M., & Förstner, J. (2024). Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching. Journal of the Optical Society of America B, 41(9), 2077. https://doi.org/10.1364/josab.528729
@article{Üstün_Farheen_Hammer_Förstner_2024, title={Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching}, volume={41}, DOI={10.1364/josab.528729}, number={9}, journal={Journal of the Optical Society of America B}, publisher={Optica Publishing Group}, author={Üstün, Necati and Farheen, Henna and Hammer, Manfred and Förstner, Jens}, year={2024}, pages={2077} }
Üstün, Necati, Henna Farheen, Manfred Hammer, and Jens Förstner. “Symmetry-Protected TM Modes in Rib-like, plus-Shaped Optical Waveguides with Shallow Etching.” Journal of the Optical Society of America B 41, no. 9 (2024): 2077. https://doi.org/10.1364/josab.528729.
N. Üstün, H. Farheen, M. Hammer, and J. Förstner, “Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching,” Journal of the Optical Society of America B, vol. 41, no. 9, p. 2077, 2024, doi: 10.1364/josab.528729.
Üstün, Necati, et al. “Symmetry-Protected TM Modes in Rib-like, plus-Shaped Optical Waveguides with Shallow Etching.” Journal of the Optical Society of America B, vol. 41, no. 9, Optica Publishing Group, 2024, p. 2077, doi:10.1364/josab.528729.
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