Design and Simulation of Broadband IR integrated Waveguide Amplifiers with Long - Period Waveguide Grating Filter |
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Authors: | Haiyan Chen |
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Affiliation: | (1) School of Physics Science and Technology, Yangtze University, Jingzhou, 434023, People’s Republic of China |
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Abstract: | A novel broadband IR integrated Er-Yb codoped phosphate glass waveguide amplifier with a long-period waveguide grating is
proposed. The long-period waveguide grating, which is used as a gain equalizer, is directly fabricated in the waveguide. The
amplifier model is based on propagation and population-rate equations and includes both uniform and pair-induced up-conversion
mechanisms. It is solved numerically by combining overlapping integral and Runge-Kutta(RK) algorithm. The intrinsical gain
spectrum of the proposed amplifier is obtained by solving a set of rate and power propagation equations and, the deleterious
gain peaking is reduced by the long-period waveguide grating filter. The effects of transmission spectrum of the proposed
long-period grating on flattening gain are discussed. An average gain ~ 20dB between 1532 nm and 1565 nm with gain difference
of < 3dB is achieved. |
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Keywords: | |
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