Modulation of coaxial modal interferometers based on long period gratings in double cladding fibers | Zendy

D. SáezRodríguez | Zendy; J.L. Cruz | Zendy; A. Dı́ez | Zendy; Miguel V. Andrés | Zendy

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Modulation of coaxial modal interferometers based on long period gratings in double cladding fibers

Author(s) -

D. SáezRodríguez,

J.L. Cruz,

A. Dı́ez,

Miguel V. Andrés

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.010929

Subject(s) - optics , cladding (metalworking) , astronomical interferometer , materials science , coaxial , cladding mode , interferometry , modulation (music) , bandwidth (computing) , diffraction grating , optical fiber , optoelectronics , grating , physics , fiber optic sensor , polarization maintaining optical fiber , acoustics , telecommunications , computer science , metallurgy

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.

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