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Proceedings Paper

Modeling the optical gain and noise in the bent Er3+-doped LiNbO3 waveguide of the Mach-Zehnder interferometer
Author(s): Niculae N. Puscas; Adrian N. Ducariu; Lucian Ene
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Paper 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.

Paper Details

Date Published: 29 June 2001
PDF: 8 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432878
Show Author Affiliations
Niculae N. Puscas, Univ. Politehnica Bucharest (Romania)
Adrian N. Ducariu, Univ. Politehnica Bucharest (Romania)
Lucian Ene, Univ. Politehnica Bucharest (Romania)

Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics
Valentin I. Vlad, Editor(s)

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