A Dy3+-doped ZBLAN fiber amplifier based on an in-band pumped configuration is designed and optimized via an evolutionary approach. In the proposed model, the rate equations are coupled with the power propagation equations for the pump and signal beams. The complete amplifier model allows the definition of the fitness function to be optimized. Realistic values for optical and spectroscopic parameters are considered. For a fiber with dopant concentration of 2000 ppm, by employing an input pump power of 1 W at 2.72 μm wavelength, an optical gain of about 15.56 dB at 2.95 μm wavelength is obtained.
Mario Christian Falconi, Dario Laneve, Caterina Clemente, Dean Gurban, Toney Teddy Fernandez, Gianluca Galzerano, and Francesco Prudenzano, "Global optimization via evolutionary approach of a Dy3+:ZBLAN fiber amplifier for MID-IR applications," Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 106830L (Presented at SPIE Photonics Europe: April 23, 2018; Published: 17 May 2018); https://doi.org/10.1117/12.2306473.
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