Modeling the optical gain and noise in the bent Er3+-doped LiNbO3 waveguide of the Mach-Zehnder interferometer

Niculae N. Puscas; Adrian N. Ducariu; Lucian Ene

doi:10.1117/12.432878

29 June 2001 Modeling the optical gain and noise in the bent Er³⁺-doped LiNbO₃ waveguide of the Mach-Zehnder interferometer

Niculae N. Puscas, Adrian N. Ducariu, Lucian Ene

Author Affiliations +

Proceedings Volume 4430, ROMOPTO 2000: Sixth Conference on Optics; (2001) https://doi.org/10.1117/12.432878
Event: ROMOPTO 2000: Sixth Conference on Optics, 2000, Bucharest, Romania

Abstract

Er³⁺-doped LiNbO₃ is widely used for the fabrication of integrated optic components. In the small gain approximation and the unsaturated regime in this paper we report some original results in the evaluation of the spectral optical gain and spectral noise figure in the bent Er³⁺-doped LiNbO₃ waveguide of the Mach-Zehnder interferometer pumped near 1484 nm using erfc, Gaussian and constant profile of the Er³⁺ ions in LiNbO₃ crystal. We used a quasi-two-level model to simulate the optical amplification in Er³⁺-doped LiNbO₃ straight and bent waveguide amplifiers and we demonstrated that rather high gains (similar to 1.1 dB) and low noise figures (similar to 3.3 dB) at the end of the bent arm of the Mach-Zehnder interferometer are achievable for 100 mW input pump power. The obtained results can be used for the design of the integrated Mach-Zehnder interferometers and optic devices.

Citation Download Citation

Niculae N. Puscas, Adrian N. Ducariu, and Lucian Ene "Modeling the optical gain and noise in the bent Er³⁺-doped LiNbO₃ waveguide of the Mach-Zehnder interferometer", Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); https://doi.org/10.1117/12.432878

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