Departement d'Instrumentation et de Métrologie des Rayonnements Ionisants, Service d'Instrumentation et d'Applications des Rayonnements, Commissariat à l'Energie Atomique (CEA), Centre d'Etudes de Saclay, 91191 Gif-sur-Yvette, France.
Abstract:
We present a manufacturing method based on the dynamic use of phase plates to photowrite Bragg gratings. This process allows for control of the local value of the index modulation envelope in the grating. The application to apodized fiber Bragg gratings is discussed.