Wide tunable filters using a recirculating delay line with multi-reflections

A ring resonator with multiple reflections as a tunable filter is proposed and analyzed in this paper. A coupler and two identical Bragg gratings are used to implement the internal reflections so an active filter with a wide tuning range controlled through a coupler coupling constant is derived. Sim...

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Main Authors: Vargas, Salvador, Vázquez, Carmen, Sánchez Pena, José Manuel
Format: Artículo
Language: Inglés
Published: 2018
Online Access: https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-41/issue-5/0000/Wide-tunable-filters-using-a-recirculating-delay-line-with-multi/10.1117/1.1465430.short
http://ridda2.utp.ac.pa/handle/123456789/4905
Summary: A ring resonator with multiple reflections as a tunable filter is proposed and analyzed in this paper. A coupler and two identical Bragg gratings are used to implement the internal reflections so an active filter with a wide tuning range controlled through a coupler coupling constant is derived. Simple equations to design the device are included.