Ferroelectric materials, such as PZT, PLZT and BaTiO3, are being considered, or are already being employed, for a large number of applications including nanopositioning, high speed valves for fuel injectors, ultrasonic transducers, high speed camera shutters and auto focusing mechanisms, energy harvesting, and pico air vehicle design. Their advantages include nanometer positioning resolution, b...

We introduce a novel method of modeling PLZT phase modulators. Traditionally, modeling has been based upon fitting the constant quadratic electro-optic coefficient to empirical data. Our characterization has shown that the electro-optic coefficient is not a constant and that the electro-optic effect saturates at electric field strengths that exist in standard surface electrode device configurat...

Thin films of FLZT with PbTiO3 interlayers have been fabricated by using a sol-gel spin-on process. Three compositions of PLZT, namely 8/65/35,15/40/60 and 18/30/70, have been deposited on platinum and quartz substrates and heat treated at 650°C. All three compositions have crystallized in the perovskite phase. The 8/65/35 composition, which has been investigated in greater detail exhibits a lo...

Transparent Pb(Zn1/3Nb2/3)O3–(Pb1-xLax)(Zr1-yTiy)O3 (PZN–PLZT) ferroelectric ceramics have successfully been prepared by hot-pressed sintering in oxygen atmosphere. Uniform cylindrical samples with diameter as large as 50 mm can readily be obtained. X-ray analysis and scanning electron microscopy experiments showed a pure perovskite phase, thin grain boundaries, and uniform dense microstructure...

The amount of Internet traffic in current backbone networks has grown enormously due to wide deployment of broadband Internet access and new multimedia applications such as sensing data sharing and real-time streaming. In regard to optical transport technology based on Wavelength Division Multiplex (WDM), available bandwidth within single fiber could be over 20Tb/s, according to the most recent...