Silicon photonic devices based on silicon photonic wire waveguides are especially attractive devices, since they can be ultracompact and low-power consumption. In this paper, we demonstrated various devices fabricated on silicon photonic wire waveguides. They included optical directional couplers, reconfigurable optical add/drop multiplexers, 1 × 2, 1 × 4, 1 × 8 and 4 × 4 optical switches, ring...

Abstract—In this paper, a general design of an equal-split N-way power divider, similar to Bagley polygon power divider, but with an even number of output ports is proposed. A circular-shaped 4way divider is designed and simulated using two different full-wave simulators. Very good matching at the input port is achieved, and good transmission parameters are obtained. After that, the same circul...

Dual M-Z interferometer is the sensitive element of three-component acceleration seismic geophone, while Y branch waveguide is the basic optical components composed of dual M-Z interferometer, so the design of Y branch waveguide directly affects the performance of threecomponent acceleration seismic geophone. Firstly, branch waveguide and S-shaped bent waveguide are introduced, and symmetrical ...

For most of the technical community, rotary flow dividers are known for synchronization two or more hydraulic actuators. However, there is also a possibility to use them pressure multiplication, regeneration, speed control. those applications, need describe behavior its quantities. This article reveals new evaluation methodology when they unconventionally used as multipliers and quantity-pressu...

An analytical framework to evaluate the performance of different predetection diversity techniques in various mobile radio environments is developed. The average bit-error rate analysis applies to phase coded spread-spectrum systems, over Nakagami multipath fading channels. A simple and practical selection combining rule is considered. Our numerical results reveal that this new low-complexity r...

For next generation planar lightwave circuit (PLC) devices, high function and high-density integration are required as well as downsizing and cost reduction. To realize these needs, high refractive index difference between a core and a clad (∆) is required. To use PLC for practical applications, silica-based PLC is one of the most attractive candidate. However, degradation of the optical proper...

Absfmcf-The parallel division algorithms discussed in this paper may be classified among modified higher radix nonrestor-ing on-line division methods, where redundant representations are extensively utilized to speed up the operation. The network realizations of these algorithms are cellular, or even systolic with exclusively local control; they have size (area) and time both O (n) , where n is...

In this paper, a new simple design procedure of multifrequency unequal split Wilkinson power dividers (WPDs) is presented. The procedure is based on using N -sections of transmission line transformers, instead of the conventional quarter-wave WPD branches, to realize a WPD that operates at N frequencies. Good isolation is achieved by using lumped resistors without any extra modification to the ...

This paper describes design techniques for multigigahertz digital bipolar circuits with supply voltages as low as 1.5 V. Examples include a 2/1 multiplexer operating at 1 Gb/s with 1.2 mW power dissipation, a D-1atch achieving a maximum speed of 2.2 GHz while dissipating 1.4 mW, two exclusive-OR gates with a delay less than 200 ps and power dissipation of 1.3 mW, and a bufferflevel shifter havi...