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Optical Engineering

Studies on erbium diffusion in lithium niobate
Author(s): R. Chakraborty; Juran C. Biswas; Samir K. Lahiri
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Paper 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 4I15/24I13/2 lasing transition of Er3+. The reflectance spectrum indicates absorption at ~980 and ~1500 nm.

Paper Details

Date Published: 1 August 2008
PDF: 7 pages
Opt. Eng. 47(8) 084601 doi: 10.1117/1.2969125
Published in: Optical Engineering Volume 47, Issue 8
Show Author Affiliations
R. Chakraborty, TECHNO INDIA (India)
Juran C. Biswas, Indian Institute of Technology (India)
Samir K. Lahiri, Indian Institute of Technology, Kharagpur (India)

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