PICs4ALL Application Note: Photonic Integrated Circuits for Tunable Delay Lines

A delay line is a device that allows controlling the propagation delay of signals in a continuous mode, ensuring a true-time-delay operation on large operative bandwidths. Induce a temporal delay on a signal it is not an easy task. Apart digital electronics that can take advantage of shift registers for a discrete arbitrary delay, in analog electronics, microwave and photonics a continuously variable delay without moving parts isdifficult to achieve. However, integrated photonic circuits offer a number of solutions to achieve truetime- delay in very compact, flexible and potentially low cost devices ...Continue reading