Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENGINEERING   APRIL 2004 , Volume 17 , Number 1 (TRANSACTIONS B: APPLICATIONS); Page(s) 1 To 6.
 
Paper: 

DESIGN AND APPLICATION OF A PHOTOACOUSTIC SENSOR FOR MONITORING THE LASER GENERATED STRESS WAVES IN OPTICAL FIBER

 
 
Author(s):  KHOSROSHAHI M.E.*
 
* TEHRAN,IRAN
 
Abstract: 
Measurement of stress transients generated by a 400ns pulsed HF laser in an infrared ‎fluoride glass fiber has been made using fast time - response piezoelectric film ‎transducer. Acoustic signals up to 12 mV with frequencies ranging in megahertz ‎generated by 21 mJ laser pulse when passed through the fiber axis in the linear region ‎‎. it is shown that useful information such as onset of non - linear behavior of the fiber ‎can be from such measurements, which in turn can be used as a means of monitoring ‎the quality of fiber surface during an operation‏.‏ .
 
Keyword(s): PHOTO ACOUSTIC SENSOR, LASER, OPTICAL FIBER
 
References: 
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