Lasing Efficiency of Nd³⁺-Doped Lead Tellurite Glass

Abstract:

Neodymium doped tellurite glass have been proven to be one of the most efficient candidates for photonic application. Nd³⁺ ions are well known excellent as lasing ions at 1.06μm. However, the efficiency of the lasing activity of the Nd³⁺ doped tellurite glass need for more discussion especially on the contribution of the atom-atom and atom-ligand bonding based on the Judd-Ofelt theory. Therefore, initiative has been taken in this work to determine the laser efficiency by mean of their oscillator strength and Judd-Ofelt parameters. In order to identify the optical behaviour, good quality of Nd doped tellurite glass should firstly be ready. From the results, it is found that the experimental and calculated oscillator strength results of the glass are found varies from 1.157 x 10^-6 to 0.804 x 10^-6 and from 2.527 x 10^-6 to 2.243 x 10^-6 respectively with respect to Nd₂O₃ composition. The small rms deviation ~10% indicates good fit between experimental and calculated oscillator strength. Meanwhile, the Judd-Ofelt intensity parameters with t = 2, 4 and 6 are found to vary with respect to mol% of Nd content. The ⁴F_3/2→⁴I_11/2 transition for 1.06μm emission which is useful for lasers and optical amplification is totally contributed from electric dipole whereas the magnetic dipole shows no effect. Some other results will be discussed in details.

• Periodical: Solid State Phenomena (Volume 268)
• Pages: 186-190
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.268.186
• Online since: October 2017
• Authors: K. Azman*, Norihan Yahya, H. Azhan, S. Akmal Syamsyir, R.S. Nasuha
• Keywords: Absorption, Judd-Ofelt Parameters, Ligand-Bond, Oscillator Strength, Tellurite

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