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RESEARCH PRODUCT

Polarization Modulation Instability in All-Normal Dispersion Microstructured Optical Fibers With Quasi-Continuous Pump

Antonio DiezMiguel V. AndresEnrique SilvestreA. Loredo-trejoL. Velazquez-ibarraJulian M. Estudillo-ayalaY. Lopez-dieguez

subject

Microstructured optical fiberslcsh:Applied optics. PhotonicsWork (thermodynamics)Optical fiberMaterials sciencePhysics::Optics02 engineering and technology01 natural sciencesInstabilitylaw.invention010309 opticsOpticslawFiber nonlinear optics0103 physical sciencesDispersion (optics)Four-wave mixinglcsh:QC350-467FiberElectrical and Electronic EngineeringBirefringencebusiness.industrylcsh:TA1501-1820021001 nanoscience & nanotechnologyPolarization (waves)Atomic and Molecular Physics and OpticsOptical polarizationNonlinear system0210 nano-technologybusinesslcsh:Optics. LightChromatic dispersion

description

We report the experimental observation of the polarization modulation instability (PMI) effect in all-normal dispersion (ANDi) microstructured optical fibers (MOFs) with quasi-continuous pumping. The small unintentional birefringence (~10-5), that any realistic non-polarization maintaining MOF exhibits, contributes to this nonlinear effect. PMI can produce two sidebands whose polarization state is orthogonal to the polarization of the pump. In this work, only one type of PMI process is observed, i.e., when the pump is polarized along the slow axis of the fiber and sidebands are generated in the fast axis mode. This PMI process was studied experimentally in two ANDi fibers with different dispersion features and pumped with long (700 ps) pump pulses at 1064 nm. Experimental results are compared with theoretical calculations, with reasonably good agreement.

https://doi.org/10.1109/jphot.2019.2944063