Static fiber-Bragg grating strain sensing using frequency-locked lasers
نویسندگان
چکیده
منابع مشابه
Static Fiber-Bragg Grating Strain Sensing Using Frequency-Locked Lasers
Novel and highly sensitive static strain interrogation technique is demonstrated, where the sensing element is a fiberBragg grating (FBG) and the light source is a frequency-locked diode laser. Locking the laser frequency to the center of an absorption line (atomic line of potassium in our experiment) eliminates the slow frequency drift of the laser. The stabilized laser source is used to measu...
متن کاملFemtosecond passively mode-locked fiber lasers using saturable Bragg reflectors
We demonstrate a soliton fiber laser with 280-fs pulses at 408-MHz repetition rate, and a stretched-pulse regime fiber laser with 102-fs pulses at 234-MHz repetition rate. Both use saturable Bragg reflectors for mode-locking and/or self-starting. Introduction Compact sources of femtosecond laser pulses are an attractive and versatile technology for a variety of applications, such as frequency m...
متن کاملMulti-parameter Sensing System Using Sampled Fiber Bragg Grating
We propose a Gaussian sampled fiber Bragg grating for multi-parameter sensing system. The sampled fiber Bragg grating combines the characteristics of fiber Bragg grating and long period grating. The transfer matrix method has been used to obtain the transmission spectrum of the grating. The shifts in narrowband loss peak and broadband loss peak in the transmission spectrum have been utilized to...
متن کاملDynamic Strain Measurement Using Improved Bonding Fiber Bragg Grating
This study proposes an improved bonding method for attaching a fiber Bragg grating (FBG) on surface of a structure to measure its dynamic strains. The improved bonding fiber Bragg grating is called IBFBG for short in this study. The bonding method provides the chance to let the IBFBG and resistance strain gauge measure the longitudinal strain at the same point. This study use two steel cantilev...
متن کاملStrain Measurement of Composite Laminates Using Fiber Bragg Grating Sensors
Fiber Bragg grating(FBG) sensors, one of the fiber optic sensors(FOS), based on the wavelength division multiplexing(WDM) technology are ideally suitable for structural health monitoring of composite materials and structures. Proper monitoring of measurands in FBG sensor systems requires accurate measurement of the Bragg center wavelength, and the ability to track rapid shifts of the wavelength...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Lightwave Technology
سال: 1999
ISSN: 0733-8724
DOI: 10.1109/50.793765