Optical absorption and emission properties of Nd3-doped fluorophosphates glass for broadband fiber amplifier applications

Ju H. Choi; Frank G. Shi; Alfred A. Margaryan; Ashot Margaryan; Wytze E. van der Veer

doi:10.1117/12.478305

3 July 2003 Optical absorption and emission properties of Nd³⁺-doped fluorophosphates glass for broadband fiber amplifier applications

Ju H. Choi, Frank G. Shi, Alfred A. Margaryan, Ashot Margaryan, Wytze E. van der Veer

Author Affiliations +

Proceedings Volume 4974, Advances in Fiber Lasers; (2003) https://doi.org/10.1117/12.478305
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

A new series of fluorophosphate glass is developed which can be doped with an extremely high concentration of Nd³⁺. The dependence of the optical absorption and emission properties on dopant concentration is reported here for the concentration range 2.5×10²⁰ to 1.25×10²¹ ions/cm³. Absorption and emission measurements are performed in order to evaluate the spontaneous emission probability, absorption cross-section, emission cross-section, and laser performance parameters. We have synthesized two glass systems: MBBA/NdI with an Nd³⁺ concentration of 2.50×10²⁰ cm³ and MBBA/NdII with an Nd³⁺ concentration 6.26×10²⁰ cm³. The stimulated emission cross sections are 1.14 and 1.64×10⁴ cm² for the ⁴F_3/2→⁴I_13/2 transition and 3.68 and 6.68×10⁴ cm² for the ⁴F_3/2→⁴I_13/2 transition in MBBA/NdI and MBBA/NdII, respectively. Similarly, the extraction efficiencies are measured to be 1.91, 2.31 (⁴FI_3/2→⁴I_13/2) and 6.18, 9.41 (⁴F_3/2→⁴I_11/2) in MBBA/NdI and the MBBA/NdII, respectively. This new (Mg, Ba)F₂-based fluorophosphate glass (MBBA system) is promising for broadband compact optical fiber and waveguide amplifier applications.

Citation Download Citation

Ju H. Choi, Frank G. Shi, Alfred A. Margaryan, Ashot Margaryan, and Wytze E. van der Veer "Optical absorption and emission properties of Nd³⁺-doped fluorophosphates glass for broadband fiber amplifier applications", Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); https://doi.org/10.1117/12.478305

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