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  • Received: Jan. 17, 2020

    Accepted: Apr. 3, 2020

    Posted: May. 26, 2020

    Published Online: May. 27, 2020

    The Author Email: M. Juárez-Hernández (mjuarezh@fisica.ugto.mx)

    DOI: 10.3788/COL202018.071901

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    M. Juárez-Hernández, E. B. Mejía. Spectral analysis of short-wavelength emission by up-conversion in a Tm3+:ZBLAN dual-diode-pumped optical fiber[J]. Chinese Optics Letters, 2020, 18(7): 071901

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Chinese Optics Letters, Vol. 18, Issue 7, 071901 (2020)

Spectral analysis of short-wavelength emission by up-conversion in a Tm3+:ZBLAN dual-diode-pumped optical fiber

M. Juárez-Hernández1,2,* and E. B. Mejía1

Author Affiliations

  • 1Centro de Investigaciones en Óptica, A.C., 37150 Guanajuato, México
  • 2División de Ciencias e Ingenierías, Universidad de Guanajuato, 37150 Guanajuato, México

Abstract

The fluorescence evolution along Tm3+-doped ZrF4BaF2LaF3AlF3–NaF (ZBLAN) optical fibers, as well as amplified spontaneous emission in the UV-IR region with emphasis on 350 nm, 365 nm, and 450 nm, is studied, estimating optimal fiber lengths for amplification within the region. The fibers were diode-pumped with single and double lines (687 and/or 645 nm). Double-line pumping presents a quite superior efficiency for producing UV-blue signals with the benefit of requiring very short fibers, around 20 cm, compared to single-line pumping requiring more than 50 cm. A virtual cycle in which the pumps enhance each other’s absorption is the key to these systems.

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