6533b852fe1ef96bd12aad08

RESEARCH PRODUCT

Nonlinear frequency conversion in a birefringent microstructured fiber tuned by externally applied hydrostatic pressure.

Karol TarnowskiWaclaw UrbanczykBertrand KiblerAlicja AnuszkiewiczJacek OlszewskiPawel Mergo

subject

Materials scienceBirefringencebusiness.industryHydrostatic pressureScalar (mathematics)Physics::OpticsMicrostructured optical fiberAtomic and Molecular Physics and OpticsNonlinear systemOpticsFiber optic sensorGroup velocitybusinessPhotonic-crystal fiber

description

We studied vector frequency conversion in externally tuned microstructured fibers for applications as a novel, nonlinear fiber-optic sensor. We investigated both experimentally and numerically a possibility of shifting vector and scalar modulation instability gain bands by pressure-induced changes in the linear properties of a microstructured fiber. Our results show that polarization-dependent vector nonlinear processes sensitive to variation of fiber group velocity difference (group birefringence) exhibit a clear advantage for pressure-sensing applications compared with scalar nonlinear processes only sensitive to group velocity dispersion changes. Analytical predictions and numerical simulations confirm our measurement results.

10.1364/ol.38.005260https://pubmed.ncbi.nlm.nih.gov/24322232