Beijing Aerospace Times Optical electronics Technology Co.

Beijing, China

Beijing Aerospace Times Optical electronics Technology Co.

Beijing, China

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Wang W.,Beijing Aerospace Times Optical electronics Technology Co. | Wang X.,Beijing Aerospace Times Optical electronics Technology Co. | Li J.,Beijing Aerospace Times Optical electronics Technology Co. | Wang D.,Beijing Aerospace Times Optical electronics Technology Co.
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | Year: 2012

To the high performance fiber-optic gyroscope for space application, irradiation performances of erbium-doped fiber sources with different structures were analyzed in this paper, and the structure of the erbium-doped fiber source with lowest performance-degrading caused by irradiation was given. Using two kinds of fiber with different concentration level, two single-pass, backward-signal erbium-doped fiber sources were constructed, and the mean-wavelength and output power were tested under Co 60 irradiation. The results show that the performance of the erbium-doped fiber source with higher erbium-doped concentration level has a better performance of mean-wavelength and output power under space environment. The change of meanwave length and output power under Co 60 irradiation were 61.7% and 88.6% lower than erbium-doped fiber source with lower erbium-doped concentration level. The power decrease of erbium-doped fiber source was 61.1% lower under lower dose rate than higher dose rate. The experimental results show that the erbium doped fiber source with higher erbium-doped concentration level can fulfill the requirement of space application.

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