Spectral noise analysis of single- and double-pass Er3+ - doped LiNbO3 waveguide amplifiers |
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| Authors: | N N Puscas R Girardi D Scarano I Montrosset |
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| Affiliation: | 1. Dipartimento di Elettronica , Politecnico di Torino , Corso Duca degli Abruzzi 24, 10129, Torino, Italy;2. Physics Department , University “Politehnica’ Bucharest , Splaiul Independentei 313, 77206, Bucharest, Romania;3. Centro Studie Laboratori Telecomunicazioni , Via G. Reiss Romoli 274, 10148, Torino, Italy;4. Pirelli Cavi , Viale Sarca 202, 20126, Milano, Italy;5. Dipartimento di Elettronica , Politecnico di Torino , Corso Duca degli Abruzzi 24, 10129, Torino, Italy |
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| Abstract: | Abstract In this paper we report the derivation and evaluation of the spectral optical gain, spectral noise figure, amplified spontaneous emission photon number and signal-to-noise ratio in single- and double-pass configurations for an Er3+-doped LiNbO3 waveguide amplifier pumped near 1484nm. The theoretical analysis was made using the small-gain approximation in the unsaturated regime. The simulations show the evolution of the above-mentioned parameters under various pumping regimes and waveguide lengths. The results obtained show how the model can be used for the design of Er3+-doped LiNbO3 waveguide amplifiers. |
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