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Transmission spectra of the LPFG before and after the HRI coating deposition.
Attenuation band at : (a) a shorter stripping length generates a phase shift phenomenon; (b) a longer stripping length provokes the generation of more than two lobes.
Transmission spectrum of the LPFG after the complete coating stripping and after the second laser processing.
Numerical simulation of the coating stripping including the laser effects on the attenuation band at : (a) phase shift phenomenon; (b) selective fringes generation.
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