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PreprintCC BY 4.0arXiv

Study of non-uniformity-induced structured spectrum in a tapered optical fiber through stimulated four-wave mixing

  • Minjae Hong
  • Nicolas Y. Joly
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Abstract

Tapered optical fibers offer tunable dispersion and a small mode area, yielding high nonlinearity, which makes them ideal for nonlinear and quantum optics. Because phase-matched four-wave mixing strongly depends on dispersion, the taper diameter becomes a key parameter. For sub-micrometer tapers, identifying the exact diameter is challenging. Here, we show that when seeding with a broad spectrum, stimulated four-wave mixing yields a comb-like spectrum that is directly linked to the overall taper profile opening possibility for non-destructive evaluation of sub-micron taper. Our model based on joint-spectral amplitude includes the phase accumulated over the fiber length.

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Cite

BibTeXRIS
BibTeX
@misc{hong2026study,
  title = {{Study of non-uniformity-induced structured spectrum in a tapered optical fiber through stimulated four-wave mixing}},
  author = {Minjae Hong and Nicolas Y. Joly},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.26282},
  eprint = {2610.26282},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.26282},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Study of non-uniformity-induced structured spectrum in a tapered optical fiber through stimulated four-wave mixing
AU  - Minjae Hong
AU  - Nicolas Y. Joly
PY  - 2026
DA  - 2026/10/19
PB  - arXiv
DO  - 10.48550/arxiv.2610.26282
UR  - https://arxiv.org/abs/2610.26282
AB  - Tapered optical fibers offer tunable dispersion and a small mode area, yielding high nonlinearity, which makes them ideal for nonlinear and quantum optics. Because phase-matched four-wave mixing strongly depends on dispersion, the taper diameter becomes a key parameter. For sub-micrometer tapers, identifying the exact diameter is challenging. Here, we show that when seeding with a broad spectrum, stimulated four-wave mixing yields a comb-like spectrum that is directly linked to the overall taper profile opening possibility for non-destructive evaluation of sub-micron taper. Our model based on joint-spectral amplitude includes the phase accumulated over the fiber length.
ER  -