Designing Filters and Reflectors with Bragg Gratings

Bragg gratings are periodic structures used in various optical systems. The periodicity allows Bragg gratings to reflect specific wavelengths of light while transmitting others. The key principle behind their operation is the Bragg’s condition. This section will introduce the Bragg condition and use Tidy3D to model a distributed Bragg reflector and cavity. Then, we will apply the same principle to integrated photonics and demonstrate the design of silicon waveguide Bragg gratings.

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