Voltage-Controlled N × N Coupled Waveguide Switch and Power Splitter

Research output: Contribution to journalArticlepeer-review


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 is 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.

Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number2
StatePublished - Feb 1993


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