Abstract
Piezoelectric transducers capable of operating at GHz frequencies and of being deposited directly onto curved surfaces such as optical fibers have long been known to offer exciting possibilities for the construction of photonic devices using the elasto-optic effect.1-3 Such techniques can be used for example to construct phase modulators having zero insertion loss for use in mode-locking fiber laser systems,4 and focused acoustic wave Bragg cells in which the switching speed of the devices can be increased without compromising the diffraction efficiency.5 Devices can in principle be constructed in fully fiber-compatible form using gradient index materials6 with high optical power handling capacity and low insertion loss. Of key importance is the ability to form films of highly oriented polycrystalline zinc oxide (ZnO) directly onto a metallic layer, which functions as the transducer bottom electrode, these films must be dense, highly oriented, and defect-free for efficient generation of acoustic waves.
© 1996 Optical Society of America
PDF ArticleMore Like This
Christophe Gorecki, Franck Chollet, Hideki Kawakatsu, and Hiroyuki Fujita
CWF55 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1996
N.K. Zayer, A.J.C. Grellier, C.N. Pannell, R. Greef, K. Rogers, and M. Zervas
CWF36 Conference on Lasers and Electro-Optics (CLEO:S&I) 1998
Fred S. Hickernell
WB6 Integrated and Guided Wave Optics (IGWO) 1980