Ultra low thermal coefficient broadband super-fluorescent fiber source with radiation insensitivity characteristic

Ting, Yi-Chia; Wang, Hsiang; Lu, Tsung-Yu; Lin, Chia-Ju; Liaw, Shien‐Kuei; Liu, Ren-Young; Shin, C.S.

doi:10.1109/foan.2017.8215250

Cited by 2 publications

(2 citation statements)

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“…In meeting the requirements of navigation-grade IFOGs, its light source is usually an Er-doped superfluorescent fiber source (SFS) [ 1 , 2 ], whose high-stability mean wavelength and output power can achieve low bias drift and stable scale factor for IFOG application [ 3 ]. However, in space applications, various space rays and ionizing radiation can remarkably affect the radiation-induced attenuation (RIA) of SFSs, which in turn can cause mean wavelength drifts and power attenuation [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the previous researches have been devoted to improving the radiation-resistant capabilities of SFSs [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. The output power loss of SFSs can be mitigated by the Erbium-doped fiber (EDF) radiation-tolerant design and processing [ 13 , 14 , 15 , 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Radiation-Resistant Er3+-Doped Superfluorescent Fiber Sources

Zhu

et al. 2018

Sensors

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The radiation effects of three Er3+-doped superfluorescent fiber sources (SFSs), which are based on three segments of Er-doped fibers with different lengths, are studied experimentally. We observed that the radiation-induced attenuation of the signal light of the 1530 nm band for an SFS is less than that of the 1560 nm band. Thus, the trimming technique of the Gauss-like spectra is investigated to reduce the mean wavelength drift. A filter was customized and used in superfluorescent fiber sources. To further reduce output power loss, the method with feedback control of pump power was adopted in the SFS. Then, the trimming spectral SFS with pump feedback control was tested under irradiation environment at the dose rate of 2.988 Gy/h. The experimental results demonstrate that the mean wavelength drift is <40 ppm and the loss of output power is <0.2 dB under a total dose higher than 1000 Gy. These findings confirm the significance of the method in improving radiation-resistant capabilities of fiber sources under irradiation environments.

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