title: Fiber Bragg grating-based self-referencing technique for wavelength-multiplexed intensity sensors.
abstract: An amplitude-phase-conversion self-referencing technique for intensity-modulated photonic sensors that uses two different-wavelength fiber Bragg gratings is presented. With this technique, the system response has been demonstrated to be almost unafffected by network power variations as high as 90% of the total power launched by the source. We prove the multiplexing capability of this type of self-referenced fiber sensor by wavelength-division multiplexing two of them in a star network. A tunable fused biconical wavelength-division multiplexer is used for sensor addressing at the detection block, providing both good isolation and low cross-talk values.
authors.forename: S
authors.initials: S
authors.lastname: Abad
authors.forename: M
authors.initials: M
authors.lastname: López-Amo
authors.forename: F M
authors.initials: FM
authors.lastname: Araújo
authors.forename: L A
authors.initials: LA
authors.lastname: Ferreira
authors.forename: J L
authors.initials: JL
authors.lastname: Santos