Studies on erbium diffusion in lithium niobate

R. Chakraborty; Juran C. Biswas; Samir K. Lahiri

doi:10.1117/1.2969125

1 August 2008 Studies on erbium diffusion in lithium niobate

R. Chakraborty, Juran C. Biswas, Samir K. Lahiri

Author Affiliations +

Optical Engineering, Vol. 47, Issue 8, 084601 (August 2008). https://doi.org/10.1117/1.2969125

Abstract

Experimental work on the study of erbium (Er) diffusion and the characterisation of Er-diffused layers required to form waveguide amplifiers in LiNbO₃ substrate is presented. The presence of active Er in the lattice of LiNbO₃ is investigated using x-ray photoelectron spectroscopy (XPS), photoluminescence (PL) measurement, and spectroscopic reflectometry. The shift of XPS peaks confirms the oxidized state of Er. The PL spectrum shows a sharp peak at 1530-nm wavelength, indicating the ⁴I_15/2→⁴I_13/2 lasing transition of Er³⁺. The reflectance spectrum indicates absorption at ~980 and ~1500 nm.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

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R. Chakraborty, Juran C. Biswas, and Samir K. Lahiri "Studies on erbium diffusion in lithium niobate," Optical Engineering 47(8), 084601 (1 August 2008). https://doi.org/10.1117/1.2969125

Published: 1 August 2008

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