2026-10-14T12:03:00Z https://www.scidb.cn/oai

10.57760/sciencedb.03017 2022-11-24T17:07:35Z

2022-11-24 Cladding-Pumped Erbium-Ytterbium Co-Doped Fiber Amplifier With Dual-Wavelength Auxiliary Signal Injection of 1030 and 1040 nm doi:10.57760/sciencedb.03017 en : We propose and demonstrate a cladding-pumped, erbium-ytterbium co-doped fiber amplifier (EYDFA) scheme based on dual wavelength auxiliary signal injection technique to solve the issue of the backward Yb-ASE self-lasing under strong pumping for the high-power fiber amplification of 1.5-µm kHz-linewidth linearly-polarized laser signal. With the dual wavelength auxiliary signal of 1030 and 1040 nm injection, the allowable maximum pump power without triggering the backward Yb-ASE self-lasing can be greatly increased due to the relieving effect on the inhomogeneous gain broadening. For an EYDFA with 3.8-m erbium-ytterbium co-doped double-clad fiber, the net output power is improved to 13.8 W, while the linewidth of the amplified single-transverse-mode linearly-polarized 1560 nm laser signal is still only 3.5 kHz. The SBS effect is observed to be trivial during the fiber amplification : Erbium; ytterbium; fiber amplifier; self-lasing; cladding pump. Shanshan Wei Bo Yao Yujun Chen Qinghe Mao PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1109/JPHOT.2020.2975843 Science Data Bank