980nm Erbium-Doped Fiber Grating
We describe the behavior of long period gratings (LPG) in 980nm pumped Erbium doped optical fibers. Our results show that varying the gain coefficient can control the transmission spectrum of the. An easy-to-implement and cost-effective Fiber Bragg Grating (FBG) sensor interrogation technique based on a ring Erbium-Doped Fiber Laser (EDFL) topology is proposed and experimentally assessed. The FBG sensor is part of the EDFL cavity and must have a central wavelength located within the linear. ABSTRACT When erbium-doped fiber amplifiers are pumped by 980-nm laser, fluctuations in the pumping wavelength result in large variations in the gain and amplified output in the 1550-nm band --a phenomenon known as pump-mediated inhomogeneity (PMI)--resulting in stricter requirements with respect.
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