Erbium-ytterbium doped fiber amplifier with suppressed Yb-ASE and improved efficiency

Grzegorz Sobon; Dorota Sliwinska; Pawel Kaczmarek; Krzysztof M. Abramski

doi:10.1117/12.2014825

22 January 2013 Erbium-ytterbium doped fiber amplifier with suppressed Yb-ASE and improved efficiency

Grzegorz Sobon, Dorota Sliwinska, Pawel Kaczmarek, Krzysztof M. Abramski

Proceedings Volume 8702, Laser Technology 2012: Progress in Lasers; 87020J (2013) https://doi.org/10.1117/12.2014825
Event: Tenth Symposium on Laser Technology, 2012, Szczecin, Poland

Abstract

A new design of an erbium-ytterbium doped fiber amplifier is demonstrated. The amplifier contains a wavelength-tuned loop resonator for the 1 μm signal. The amplified spontaneous emission (ASE) from Yb ions is used to stimulate a laser emission at several wavelengths from the 1 μm band in the 1550 nm amplifier. The wavelength of this lasing is selected by introducing a spectral filter. The results show, that the efficiency of the amplifier at nominal 1550 nm wavelength can be increased by introducing a feedback loop with 1040 nm and 1050 nm filters. This loop also protects the Er-Yb amplifier from parasitic lasing and allows output power scaling without risk of self-pulsing at 1 μm.

Citation Download Citation

Grzegorz Sobon, Dorota Sliwinska, Pawel Kaczmarek, and Krzysztof M. Abramski "Erbium-ytterbium doped fiber amplifier with suppressed Yb-ASE and improved efficiency", Proc. SPIE 8702, Laser Technology 2012: Progress in Lasers, 87020J (22 January 2013); https://doi.org/10.1117/12.2014825

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