Shift of zero-dispersion wavelength in bent optical fibers

Página do item simplificado
dc.creatorAndrés Gil-Molina
dc.creatorAllan Perez-Ramirez
dc.creatorJhonattan Córdoba Ramírez
dc.creatorLucas Heitzmann Gabrielli
dc.creatorHugo Luis Fragnito
dc.date.accessioned2025-04-25T13:51:39Z
dc.date.accessioned2025-09-08T22:56:13Z
dc.date.available2025-04-25T13:51:39Z
dc.date.issued2018
dc.identifier.doihttps://doi.org/10.1364/oe.26.006700
dc.identifier.issn1094-4087
dc.identifier.urihttps://hdl.handle.net/1843/81846
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofOptics express
dc.rightsAcesso Aberto
dc.subjectÓtica de fibras
dc.subject.otherBending modifies the guiding characteristics of an optical fiber by inducing changes in the loss and dispersion parameters. These changes are important in the design of compact devices where bending is unavoidable to save space
dc.subject.otherThanks to the sensitivity of FWM to minute changes in the phase-matching condition, we have been able to measure the change of λ0 as a function of Rb with <0.1 nm accuracy in λ0. We have shown that λ0 may be shifted by ~12 nm in a DSF when it is wound with Rb = 1 cm, which is a large Δλ0 compared to those obtained from other environmental modifications, such as temperature (30 pm/ºC), pressure (7.6 pm/MPa) or strain (1.7 nm/%)
dc.titleShift of zero-dispersion wavelength in bent optical fibers
dc.typeArtigo de periódico
local.citation.epage6714
local.citation.issue6
local.citation.spage6700
local.citation.volume26
local.description.resumoThe understanding of how bending modifies the dispersion of optical fibers, in particular, the zero-dispersion wavelength (λ0), is essential in the development of compact nonlinear optical devices such as parametric amplifiers, wavelength converters, soliton lasers and frequency comb generators. Typically, substantial variations in the parametric gain and/or conversion efficiency are significant for changes in λ0 of ~0.1 nm, which occur for variations on the bending radius (Rb) of 1 cm or less. Measuring λ0 as a function of bending radius (Rb) is challenging, as it requires detecting changes < 0.1 nm and in short fibers. By using a method based on four-wave mixing (FWM) generated by an incoherent-pump with relatively broad spectrum and a weak laser, we report measurements of λ0 as a function of Rb in a dispersion-shifted fiber with <0.1 nm accuracy on λ0. This method is sensitive enough to measure small variations in λ0 of ~0.04 nm in very short fibers (~20 m). We observe that λ0 increases by 12 nm when Rb is decreased from 10 cm to 1 cm, and a change of 1 nm is obtained for Rb = 3 cm. We also present numerical simulations of the bent fiber that are in good agreement with our measurements, and help us to explain the observations and to predict how high-order dispersion is modified with bending. This study can provide insights for dispersion engineering, in which bending could be used as a tuning, equalization, or tailoring mechanism for λ0, which can be used in the development of compact nonlinear optical devices based on fibers or other bent-waveguide structures.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://opg.optica.org/oe/fulltext.cfm?uri=oe-26-6-6700&id=383169

Arquivos

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG