PDL and DGD Reduction in Bragg Gratings Using Twisted Fibers for the Inscription
| Autor: | Salvador Sales, Raimundo Garcia-Olcina, Victor Garcia-Munoz, Patrice Mégret, José Capmany, Marc Wuilpart, Sébastien Bette, Christophe Caucheteur |
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| Rok vydání: | 2009 |
| Předmět: |
Fiber gratings
Optical fiber Birefringence Materials science business.industry Manufacturing process Physics::Optics Polarization (waves) Atomic and Molecular Physics and Optics Statistics::Computation Electronic Optical and Magnetic Materials law.invention Optics Fiber Bragg grating Band-pass filter law Differential group delay Electrical and Electronic Engineering business |
| Zdroj: | IEEE Photonics Technology Letters. 21:1689-1691 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2009.2031817 |
| Popis: | We report the possibility to reduce the polarization-dependent loss (PDL) and the differential group delay (DGD) in fiber Bragg gratings (FBGs) by inducing polarization-mode coupling (PMC). To induce the PMC, the fiber is twisted before the inscription and then relaxed once the FBG is written. The theoretical concept as well as the simulation method used to study FBGs exhibiting PMC is detailed. The obtained results point out a significant decrease of the gratings' PDL and DGD values. In addition, experimental results, in good agreement with the theory, demonstrate the possibility to implement this method in practice. |
| Databáze: | OpenAIRE |
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