1. Polarization Modulation Instability in All-Normal Dispersion Microstructured Optical Fibers With Quasi-Continuous Pump
- Author
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Antonio Diez, Miguel V. Andrés, Enrique Silvestre, A. Loredo-Trejo, L. Velazquez-Ibarra, Julian M. Estudillo-Ayala, and Y. Lopez-Dieguez
- Subjects
Microstructured optical fibers ,lcsh:Applied optics. Photonics ,Work (thermodynamics) ,Optical fiber ,Materials science ,Physics::Optics ,02 engineering and technology ,01 natural sciences ,Instability ,law.invention ,010309 optics ,Optics ,law ,Fiber nonlinear optics ,0103 physical sciences ,Dispersion (optics) ,Four-wave mixing ,lcsh:QC350-467 ,Fiber ,Electrical and Electronic Engineering ,Birefringence ,business.industry ,lcsh:TA1501-1820 ,021001 nanoscience & nanotechnology ,Polarization (waves) ,Atomic and Molecular Physics, and Optics ,Optical polarization ,Nonlinear system ,0210 nano-technology ,business ,lcsh:Optics. Light ,Chromatic dispersion - Abstract
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.
- Published
- 2019