title: Modulation of coaxial modal interferometers based on long period gratings in double cladding fibers.
abstract: This paper reports on the dynamic modulation of coaxial interferometers based on two cascaded long period gratings written in double cladding fibers. The interferometer is modulated by a piezoelectric ceramic which stretches one the gratings at tens of kHz, the output light is intensity modulated with an efficiency of 97 %. The device operates at 1530nm, has more than 50nm bandwidth, insertion loss of 0.4 dB and a temperature drift of 0.11 nm/ degrees C.
authors: D
authors: D
authors: Sáez-Rodríguez
authors: J L
authors: JL
authors: Cruz
authors: A
authors: A
authors: Diez
authors: M V
authors: MV
authors: Andrés