title: Grating sensor array demodulation by use of a passively mode-locked fiber laser.
abstract: A fiber Bragg grating sensor array is interrogated by use of a passively mode-locked fiber laser source. A novel demodulation scheme that uses highly dispersive fiber to convert the grating wavelength shift to a temporal shift in the arrival time of the reflected pulses is demonstrated. The source bandwidth of >85 nm permits interrogation of many-grating arrays, and the demodulation technique permits fast sensing of large strains.
authors.forename: M L
authors.initials: ML
authors.lastname: Dennis
authors.forename: M A
authors.initials: MA
authors.lastname: Putnam
authors.forename: J U
authors.initials: JU
authors.lastname: Kang
authors.forename: T E
authors.initials: TE
authors.lastname: Tsai
authors.forename: I N
authors.initials: IN
authors.lastname: Duling Iii
authors.forename: E J
authors.initials: EJ
authors.lastname: Friebele