Radiation-tolerant superfluorescent fiber sources for high-performance fiber-optic gyroscopes working under gamma irradiation higher than 200 krad
Journal
IEEE Photonics Technology Letters
Journal Volume
24
Journal Issue
15
Pages
1340-1342
Date Issued
2012
Author(s)
Peng, T.-S.
Abstract
Two effective methods, bidirectional-pump double-pass (BPDP) configuration and green light photo-annealing (GLPA) technique, are proposed to obtain radiation-tolerant superfluorescent fiber sources (SFSs) for high performance interferometric fiber-optic gyroscopes (IFOGs). The results show that the SFS prepared by each method could maintain the same mean-wavelength under γ-irradiation higher than 200 krad, and still have a broad linewidth larger than 34 nm. The lowest output power loss was experimentally demonstrated to be as low as 0.6 dB for 40-mW output power. Such radiation-tolerant SFSs have better performance than those reported previously, and can be used for an IFOG in both the low-Earth orbit (LEO) and the geostationary Earth orbit (GEO) applications. © 2012 IEEE.
SDGs
Type
journal article