Title :
Voltage controlled N*N coupled waveguide switch and power splitter
Author :
Ruschin, S. ; Meshulach, D.
Author_Institution :
Tel-Aviv Univ., Israel
Abstract :
It is shown that it is possible to accomplish near-complete power transfer functions in N coupled waveguide arrays by controlling a set of N voltages applied to the waveguides. Switching of the power from an excited center waveguide into any output channel in a five waveguide array and splitting of power into any output combination of channels are demonstrated. In all cases, the crosstalk is better than -16 dB, and the power splitting efficiency ratio differs from 1 on an amount of not more than 15%. The length of the device is arbitrarily set. The sensitivity of the splitting functions to small random changes of the applied voltages is investigated.<>
Keywords :
crosstalk; electro-optical devices; integrated optics; optical switches; optical waveguides; transfer functions; LiNbO/sub 3/:Ti; N coupled waveguide arrays; N*N coupled waveguide switch; applied voltages; crosstalk; excited center waveguide; optical coupling; optical switching; output channel; power splitter; power splitting efficiency ratio; power switching; power transfer functions; sensitivity; splitting functions; voltage control; Crosstalk; Electromagnetic propagation; Electromagnetic waveguides; Optical arrays; Optical switches; Optical waveguides; Physics; Transfer functions; Voltage control; Waveguide components;
Journal_Title :
Photonics Technology Letters, IEEE
