METHODS AND PROCESS OF TAPERING WAVEGUIDES AND OF FORMING OPTIMIZED WAVEGUIDE STRUCTURES

摘要

A waveguide (22) with a non-constant cross section is created in a wedged substrate (16), by applying an electric field by using two electrodes (24,24). The electric field induces an ion exchange process. Since the substrate (16) is wedge shaped, the electric field is not uniform, and thus the ion exchange is not uniform. The non-uniform ion-exchange results in a non-uniform waveguide (22).