he main objective of this paper is to present a detailed study concerning the modeling of passive optical devices, controlled by the linear electro-optic Pockels effect [1]-[8], particularly the Mach-Zehnder devices. First it is studied the anisotropic media in general where is deduced the electro-optic tensor and the appropriate indexes ellipsoid expressions to a crystal such as lithium niobat...

Optical properties of multilayer InAs quantum dot waveguides, grown by molecular beam epitaxy, have been studied under applied electric field. Fabry-Perot measurements at 1515 nm on InAs/GaAs quantum dot structures yield a significantly enhanced linear electro-optic efficiency compared to bulk GaAs. Electro-absorption measurements at 1300 nm showed increased absorption with applied field accomp...

We describe an electro-optical switch based on a commercial electro-optic modulator (modified for high-speed operation) and a 340 V pulser having a rise time of 2.2 ns (at 250 V). It can produce arbitrary pulse patterns with an average repetition rate beyond 20 MHz. It uses a grounded-grid triode driven by transmitting power transistors. We discuss variations that enable analog operation, use t...

We present a method for controlling the efficiency of direct third-harmonic generation in quasi-periodic optical superlattices by means of the electro-optic effect. The calculated results manifest that this method is extremely efficient for achieving high efficiency of direct third-harmonic generation in predesigned quasi-phase-matched coupled parametric processes and is feasible at any given f...

Hybrid electro-optical packet switches utilize optics in the backplane to switch optical packets from inputs to outputs on electronic line cards. The optical packets are traditionally considerably larger than minimum size IP packets. IP packets entering the switch must be formatted (segmented) and encapsulated in the optical packet format. This process is called packetisation or aggregation. Th...

High efficiency and a compact footprint are desired properties for electro-optic modulators. In this paper, we propose, theoretically investigate experimentally demonstrate recirculating phase modulator, which increases the modulation by modulating optical field several times in non-resonant waveguide structure. The 'recycling' of light is achieved looping path that exits modulator back couplin...