Spectral Range of Photonic Devices
Photonic devices - Bas parameters

The optical signal serves as the starting point for photonic devices (see example of a photonic device “chain” in Figure1). Their operating principle is therefore based on the laws of optics: light radiation was first considered, as far back as antiquity, as the propagation of particles along rays (geometric optics theory) and then, beginning in the 19th century, primarily as the propagation of vibrations (wave optics), leading, in conjunction with the work of the time in electricity and magnetism (Faraday, Maxwell), to the conclusion that this vibration involves a pair of fields—electric and magnetic—whose oscillations sustain one another indefinitely in a vacuum or with varying degrees of attenuation in any material medium.