title: Nonlinear frequency conversion in a birefringent microstructured fiber tuned by externally applied hydrostatic pressure.
abstract: 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.
authors: Karol
authors: K
authors: Tarnowski
authors: Alicja
authors: A
authors: Anuszkiewicz
authors: Jacek
authors: J
authors: Olszewski
authors: Pawel
authors: P
authors: Mergo
authors: Bertrand
authors: B
authors: Kibler
authors: Waclaw
authors: W
authors: Urbanczyk