Resumé
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Optics Express |
| Vol/bind | 15 |
| Udgave nummer | 14 |
| Sider (fra-til) | 8988-8996 |
| ISSN | 1094-4087 |
| DOI | |
| Status | Udgivet - 2007 |
| Udgivet eksternt | Ja |
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Air-clad fibers: pump absorption assisted by chaotic wave dynamics? / Mortensen, Niels Asger.
I: Optics Express, Bind 15, Nr. 14, 2007, s. 8988-8996.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
TY - JOUR
T1 - Air-clad fibers: pump absorption assisted by chaotic wave dynamics?
AU - Mortensen, Niels Asger
PY - 2007
Y1 - 2007
N2 - Wave chaos is a concept which has already proved its practical usefulness in design of double-clad fibers for cladding-pumped fiber lasers and fiber amplifiers. In general, classically chaotic geometries will favor strong pump absorption and we address the extent of chaotic wave dynamics in typical air-clad geometries. While air-clad structures supporting sup-wavelength convex air-glass interfaces (viewed from the high-index side) will promote chaotic dynamics we find guidance of regular whispering-gallery modes in air-clad structures resembling an overall cylindrical symmetry. Highly symmetric air-clad structures may thus suppress the pump-absorption efficiency η below the ergodic scaling law η∞ Ac/Acl, where Ac and Acl are the areas of the rare-earth doped core and the cladding, respectively.
AB - Wave chaos is a concept which has already proved its practical usefulness in design of double-clad fibers for cladding-pumped fiber lasers and fiber amplifiers. In general, classically chaotic geometries will favor strong pump absorption and we address the extent of chaotic wave dynamics in typical air-clad geometries. While air-clad structures supporting sup-wavelength convex air-glass interfaces (viewed from the high-index side) will promote chaotic dynamics we find guidance of regular whispering-gallery modes in air-clad structures resembling an overall cylindrical symmetry. Highly symmetric air-clad structures may thus suppress the pump-absorption efficiency η below the ergodic scaling law η∞ Ac/Acl, where Ac and Acl are the areas of the rare-earth doped core and the cladding, respectively.
U2 - 10.1364/OE.15.008988
DO - 10.1364/OE.15.008988
M3 - Journal article
VL - 15
SP - 8988
EP - 8996
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 14
ER -