Performance analysis of a time-division-multiplexed fiber Bragg grating sensor array by use of a tunable laser source

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Misas, CJ (Author) Other; Araujo, FMM (Author) Other; Ferreira, LA (Author) Other; Santos, JL (Author) FCUP; Lopez Higuera, JM (Author) Other

Journal

Title: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS

Vol. 6

Pages: 741-749

ISSN: 1077-260X

Publisher: IEEE

Indexing

ISI Web of Knowledge

Scopus - 45 Citations

Other information

Authenticus ID: P-007-BKF

DOI: 10.1109/2944.892613

Abstract (EN): The results of an investigation of the performance of a time-division-multiplexed (TDM) fiber Bragg grating (FBG) sensor array using a tunable laser source are reported. The system performance is found limited by the extinction ratio of the optical pulse modulator used for pulse amplitude modulation. Formulas that relate the crosstalk to the extinction ratio of the optical pulse modulator, the modulation parameters of the tunable laser, and the optical path differences among sensing channels are derived. Computer simulation shows that an array of 20 FBG sensors with 3 ¿¿ resolution can be realized with a commercially available single Mach-Zehnder type optical pulse modulator of -35-dB extinction ratio.

Language: English

Type (Professor's evaluation): Scientific