fieldid E-Thesis & Research สถาบันเทคโนโลยีไทย-ญี่ปุ่น
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บทคัดย่อ
THE IMPROVEMENT OF HYDROGEN LOADING TIME TO FIBER BRAGG GRATING FABRICATION PRODUCTIVITY IMPROVEMENT : FBG fabrication technology has been quickly developed. The optical communication business is highly competitive. The FBG productivity improvement is an optional to drive on this business. The motivation of this research is to improve the cycle time of hydrogen loading process from hydrogen loading time reduction for improve FBG productivity. The objective of hydrogen loading process is to enhance photosensitivity of fiber. However, the side effect of this process is to increase the refractive index of fiber core. These two effects of hydrogen affect to the quality of FBG. Therefore, in this research was studied the effect of hydrogen loading time to FBG parameter. Hydrogen pressure was controlled at 13 MPa. Hydrogen loading time were varied at 48, 72, 120, and 192 hours. The standard deviation of FBG parameter were considered to be a judgment factor. All of hydrogen loading time were accepted by judgment from the standard deviation of each FBG parameter. However, the average of writing time in case of hydrogen loading time at 48 hours was fluctuation more than 72 hours. Therefore, Hydrogen loading time at 72 hours was the best of hydrogen loading time that can improve FBG productivity, as well as, sustain a quality of FBG.
ผู้แต่ง
Phimolphan Rutthongjan
ประเภทสิ่งพิมพ์
วิทยานิพนธ์ (MET) 2015
ปีที่พิมพ์
1
เลขหน้า
63 p
หัวเรื่อง
Engineering Technology--Thesis
หัวเรื่อง
Thai-Nichi Institute of Technology.Engineering Technology--Thesis
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