Stimulated emission and light amplification in Ho3+ doped oxyfluoride glasses and glass-ceramics

Fernando Lahoz; Nestor E. Capuj; Daniel Navarro-Urrios; Sergio E. Hernández

doi:10.1117/12.721884

7 June 2007 Stimulated emission and light amplification in Ho³⁺ doped oxyfluoride glasses and glass-ceramics

Fernando Lahoz, Nestor E. Capuj, Daniel Navarro-Urrios, Sergio E. Hernández

Proceedings Volume 6593, Photonic Materials, Devices, and Applications II; 65930M (2007) https://doi.org/10.1117/12.721884
Event: Microtechnologies for the New Millennium, 2007, Maspalomas, Gran Canaria, Spain

Abstract

Stimulated emission and light amplification have been observed in Ho³⁺-doped transparent oxyfluoride glasses and glass-ceramics. A pump and probe experiment has been designed to show this result. A doubled-frequency Nd-YAG pulsed laser oscillating at 532nm was used as the pump source to strongly populate the Ho^{3+ 5}S₂:⁵F₄ level. Low power laser radiation at 750nm was used as the probe beam to stimulate the Ho^{3+ 5}S₂:⁵F₄ → ⁵I₇ electronic transition at the same wavelength. The high power pump pulses provide population inversion between the Ho^{3+ 5}S₂:⁵F₄ and ⁵I₇ electronic levels and a net positive gain in the 750nm signal is observed both in the precursor glass and in the glass-ceramic. The highest optical gain was obtained for the glass-ceramic sample and corresponds to about 3.7cm^-1 (~16dB/cm). The dynamics of the gain is also investigated.

Citation Download Citation

Fernando Lahoz, Nestor E. Capuj, Daniel Navarro-Urrios, and Sergio E. Hernández "Stimulated emission and light amplification in Ho³⁺ doped oxyfluoride glasses and glass-ceramics", Proc. SPIE 6593, Photonic Materials, Devices, and Applications II, 65930M (7 June 2007); https://doi.org/10.1117/12.721884

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