Kaushalram, A and Suchita, . and Bhardwaj, A (2024) Influence of Double-Nested Tubes on Avoided Crossings in 5-Tube Nested Hollow-Core Fibers. In: International Conference on Photonics, PHOTONICS 2023, 5 July 2023 through 8 July 2023, Bangalore, pp. 155-162.
Full text not available from this repository. (Request a copy)Abstract
Avoided crossings in 5-tube hollow-core fibers are investigated for the impact of double-nested rings on confinement loss and single-mode guidance. Higher-order mode extinction ratio of 104 is achieved with a wide range of double-nested tube dimensions, while maintaining a confinement loss lower than 1���10�3 dB/km for the fundamental mode of the fiber over a broad 170 nm band in the visible wavelength regime. At the telecommunication wavelength of 1550 nm, confinement loss of the fundamental mode is less than 0.012 dB/km, and higher-order mode extinction ratio is larger than 6500 for a broad 190 nm band. For a fixed ratio of nested to cladding tube diameter, the diameter of double-nested tubes has negligible influence on the modal purity and small influence on the confinement loss. The fiber also exhibits a very low dispersion of less than�±�3 ps/nm/km over a broad 200 nm bandwidth. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
| Item Type: | Conference Paper |
|---|---|
| Publication: | Lecture Notes in Electrical Engineering |
| Publisher: | Springer Science and Business Media Deutschland GmbH |
| Additional Information: | The copyright for this article belongs to the publishers. |
| Keywords: | Single mode fibers, Avoided crossings; Confinement loss; Double-nested tube; Extinction ratios; Fundamental modes; High order mode; High-order mode extinction ratio; Higher-order-mode; Hollow core fiber; Nested rings, Tubes (components) |
| Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 19 Dec 2024 09:39 |
| Last Modified: | 19 Dec 2024 09:39 |
| URI: | http://eprints.iisc.ac.in/id/eprint/87154 |
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