Title :
High-efficiency all-fiber phase modulator using an annular zinc oxide piezoelectric transducer
Author :
Roe, M.P. ; Wacogne, B. ; Pannell, C.N.
Author_Institution :
Helsby Technol. Centre, BICC Cables Ltd., Warrington, UK
Abstract :
We present a high-efficiency in-fiber phase modulator, which consists of an annular ZnO piezoelectric transducer deposited on a gold-coated optical fiber by reactive RF planar magnetron sputtering. The deposited film is highly oriented and uniform in thickness and structure, which results in highly efficient acoustooptic interaction in the fiber core. Experimental results show modulator performance significantly exceeding previously reported devices.
Keywords :
acoustic transducers; acousto-optical modulation; light interferometry; optical fibre cladding; optical fibre testing; optical fibres; phase modulation; piezoelectric transducers; sputtered coatings; zinc compounds; Au; Au-coated optical fibre; ZnO; acoustooptic interaction; all-fiber phase modulator; deposited film; in-fiber phase modulator; modulator performance; piezoelectric transducer; reactive RF planar magnetron sputtering; Magnetic cores; Optical fiber devices; Optical fibers; Optical films; Phase modulation; Piezoelectric films; Piezoelectric transducers; Radio frequency; Sputtering; Zinc oxide;
Journal_Title :
Photonics Technology Letters, IEEE
