Lesson 13: Applying User-defined Diffusion Profiles

Introduction

This lesson describes how to define user-defined diffused profiles. In some instances, the predefined diffused profiles available in OptiBPM may not satisfy your requirements. For example, you may want to introduce additional parameters into the equation for a refractive index, or introduce additional dependencies into existing parameters. This lesson details how to create a user-…

Developing the User Defined Profile

As in every project, we start with creating materials of the wafer. Assume Lithium Niobate substrate and air cladding: Step Action 1 From the File menu, select New. The Initial Properties dialog box appears. 2 Click Profiles And Materials. The Profile Designer opens. 3 Under OptiBPM Designer 1, in the Materials folder, right-click the Dielectric folder…

User Defined Profile

Based on the information found in the Technical Background, the extraordinary refractive index, ne , of Ti:Lithium Niobate diffused waveguide have the following profile: The symbols, variables, and functions are explained in Table 9, Table 10, and in the Technical Background. As the equation for refractive index is exceedingly long, we rewrite the equation with…