Title :
Sensor grating array demodulation using a passively mode-locked fiber laser
Author :
Putnam, Martin A. ; Dennis, Michael L. ; Kang, Jin U. ; Tsai, Tsung-Ein ; Duling, Irl N. ; Friebele, E. Joseph
Author_Institution :
US Naval Res. Lab., Washington, DC, USA
Abstract :
Proven compatibility with civil engineering applications and composite structures has spurred increasing interest in fiber Bragg gratings (FBGs) for distributed optical fibre strain sensing. We demonstrate a fundamentally different demodulation scheme based on the high-energy, ultrafast, broadband pulses generated by a passively mode-locked erbium fiber laser as an alternative approach for high-speed interrogation of large grating arrays
Keywords :
arrays; demodulation; diffraction gratings; fibre lasers; fibre optic sensors; intelligent sensors; laser mode locking; optical information processing; optical modulation; civil engineering applications; composite structures; demodulation scheme; distributed optical fibre strain sensing; fiber Bragg gratings; high-energy ultrafast broadband pulses; high-speed interrogation; large grating arrays; optical pulse generation; passively mode-locked erbium fiber laser; passively mode-locked fiber laser; sensor grating array demodulation; Bragg gratings; Capacitive sensors; Civil engineering; Demodulation; Erbium; Erbium-doped fiber lasers; Fiber gratings; Optical fibers; Optical pulse generation; Sensor arrays;
Conference_Titel :
Optical Fiber Communication. OFC 97., Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
1-55752-480-7
DOI :
10.1109/OFC.1997.719778
