---
_id: '20189'
abstract:
- lang: eng
  text: A dielectric step-index optical fiber with tube-like profile is considered,
    being positioned with a small gap on top of a dielectric slab waveguide. We propose
    a 2.5-D hybrid analytical/numerical coupled mode model for the evanescent excitation
    of the tube through semi-guided waves propagating in the slab at oblique angles.
    The model combines the directional polarized modes supported by the slab with
    analytic solutions for the TE-, TM-, and orbital-angular-momentum (OAM) modes
    of the tube-shaped fiber. Implementational details of the scheme are discussed,
    complemented by finite-element simulations for verification purposes. Our results
    include configurations with resonant in-fiber excitation of OAM modes with large
    orbital angular momentum and strong field enhancement.
article_number: '472'
author:
- first_name: Manfred
  full_name: Hammer, Manfred
  id: '48077'
  last_name: Hammer
  orcid: 0000-0002-6331-9348
- first_name: Lena
  full_name: Ebers, Lena
  id: '40428'
  last_name: Ebers
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
citation:
  ama: Hammer M, Ebers L, Förstner J. Hybrid coupled mode modelling of the evanescent
    excitation of a dielectric tube by semi-guided waves at oblique angles. <i>Optical
    and Quantum Electronics</i>. 2020;52. doi:<a href="https://doi.org/10.1007/s11082-020-02595-z">10.1007/s11082-020-02595-z</a>
  apa: Hammer, M., Ebers, L., &#38; Förstner, J. (2020). Hybrid coupled mode modelling
    of the evanescent excitation of a dielectric tube by semi-guided waves at oblique
    angles. <i>Optical and Quantum Electronics</i>, <i>52</i>. <a href="https://doi.org/10.1007/s11082-020-02595-z">https://doi.org/10.1007/s11082-020-02595-z</a>
  bibtex: '@article{Hammer_Ebers_Förstner_2020, title={Hybrid coupled mode modelling
    of the evanescent excitation of a dielectric tube by semi-guided waves at oblique
    angles}, volume={52}, DOI={<a href="https://doi.org/10.1007/s11082-020-02595-z">10.1007/s11082-020-02595-z</a>},
    number={472}, journal={Optical and Quantum Electronics}, author={Hammer, Manfred
    and Ebers, Lena and Förstner, Jens}, year={2020} }'
  chicago: Hammer, Manfred, Lena Ebers, and Jens Förstner. “Hybrid Coupled Mode Modelling
    of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique
    Angles.” <i>Optical and Quantum Electronics</i> 52 (2020). <a href="https://doi.org/10.1007/s11082-020-02595-z">https://doi.org/10.1007/s11082-020-02595-z</a>.
  ieee: M. Hammer, L. Ebers, and J. Förstner, “Hybrid coupled mode modelling of the
    evanescent excitation of a dielectric tube by semi-guided waves at oblique angles,”
    <i>Optical and Quantum Electronics</i>, vol. 52, 2020.
  mla: Hammer, Manfred, et al. “Hybrid Coupled Mode Modelling of the Evanescent Excitation
    of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.” <i>Optical and Quantum
    Electronics</i>, vol. 52, 472, 2020, doi:<a href="https://doi.org/10.1007/s11082-020-02595-z">10.1007/s11082-020-02595-z</a>.
  short: M. Hammer, L. Ebers, J. Förstner, Optical and Quantum Electronics 52 (2020).
date_created: 2020-10-24T08:03:58Z
date_updated: 2022-01-06T06:54:22Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1007/s11082-020-02595-z
file:
- access_level: closed
  content_type: application/pdf
  creator: fossie
  date_created: 2020-10-24T08:11:40Z
  date_updated: 2020-10-24T08:11:40Z
  file_id: '20190'
  file_name: 2020-10 Hammer - OQE - Hybrid Coupled Mode Modelling Dielectric Tube.pdf
  file_size: 2212769
  relation: main_file
  success: 1
file_date_updated: 2020-10-24T08:11:40Z
has_accepted_license: '1'
intvolume: '        52'
keyword:
- tet_topic_waveguides
language:
- iso: eng
project:
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '75'
  name: TRR 142 - Subproject C5
- _id: '53'
  name: TRR 142
publication: Optical and Quantum Electronics
publication_identifier:
  issn:
  - 0306-8919
  - 1572-817X
publication_status: published
status: public
title: Hybrid coupled mode modelling of the evanescent excitation of a dielectric
  tube by semi-guided waves at oblique angles
type: journal_article
user_id: '158'
volume: 52
year: '2020'
...