Title :
High modulation efficiency using optical fiber coated with ZnO piezoelectric actuator
Author :
Wüthrich, Christian R. ; Muller, Claude A P ; Fox, Glen R. ; Limberger, Hans G.
Author_Institution :
Lab. de Ceramique, Ecole Polytech. Fed. de Lausanne, Switzerland
Abstract :
Acousto-optic all-fiber phase modulators have been fabricated by coating a standard telecommunication fiber with zinc oxide sandwiched between two chromium/gold electrodes. Good reproducibility and uniformity has been achieved with 6 μm thick ZnO and 2 and 6 mm long devices. The response on the order of 10-4 rad/(V*mm) at low frequency is dominated by the properties of the materials. At high frequency, resonant modes allow modulation efficiency as high as 0.5 rad/(mW)0.5 5 to be obtained. Modulation of +/-π/2 phase shift has been demonstrated
Keywords :
II-VI semiconductors; acousto-optical modulation; optical fibres; phase modulation; piezoelectric actuators; piezoelectric semiconductors; piezoelectric thin films; zinc compounds; 6 mm; 6 mum; Cr-ZnO-Au; Cr/Au electrodes; ZnO piezoelectric actuator; acousto-optic all-fiber phase modulators; coated optical fiber; good reproducibility; high frequency; high modulation efficiency; phase shift; resonant modes; standard telecommunication fiber; uniformity; Chromium; Coatings; Electrodes; Gold; Optical fiber devices; Optical fibers; Optical modulation; Phase modulation; Telecommunication standards; Zinc oxide;
Conference_Titel :
Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-3829-4
DOI :
10.1109/SENSOR.1997.613591
