Fabrication and Analysis of Thermal Effect of Erbium Doped Fiber Amplifier

• Main Authors: Hung-Yung Tsuo, 卓鴻揚
• Other Authors: Yin-Kwang Lin
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/89192604262099706464

碩士 === 北台科學技術學院 === 機電整合研究所 === 93 === The thesis is to study the circuits of Erbium Doped Fiber Amplifier (EDFA) and investigate the optical spectrum change of Erbium-Doped Superfluorescent Fiber Source (Er-doped SFS) in high temperature. In the experiment, the pump power of 980nm wavelength pump laser structured by single-pass backward (SPB) SFS effects only a little on the average wavelength of SFS. The drive and temperature control circuits of the 980nm wavelength pump laser were made by myself. It needs considerate the supply of temperature and electric current steadily under the normal temperature. When the Er-doped SFS is coupled with 980nm wavelength pump laser, only the Er-doped fiber is put into the programmable temperature chamber, and than the temperature of the chamber is increased from 30℃ to 450℃ to study the changes of mean-wavelength and line-width. From observing the change of average wavelength and line-width of SFS, a linear variation with increasing temperature, the average wavelength shift to the long wavelength, and the wider line-band can be found. Therefore, if the average wavelength of the ASE Light Source is designed to be a linear property and shift to the longer wavelength versus to temperature increase, its gain is required to be saturated by regulating.