Al-Hayali Sarah Kadhim Mohsin, Mohammed Dunya Zeki, Khaleel Wurood Abdulkhaleq, Al-Janabi Abdul Hadi
Appl Opt. 2017 Jun 1;56(16):4720-4726. doi: 10.1364/AO.56.004720.
We report on aluminum oxide nanoparticles (AlO NPs) as a saturable absorber (SA) for passively Q-switched erbium-doped fiber laser (EDFL) operating at a wavelength of 1560.6 nm within the C-band region. A thin film of AlO-SA was prepared using polyvinyl alcohol (PVA) as a host polymer. Very stable pulses with a 57.8 KHz repetition rate and 5.6 μs pulse width at a threshold pump power of 158 mW were obtained. A 2.8 μs pulse width, 81 kHz pulse repetition rate, with maximum pulse energy of 56.7 nJ at a diode pump power of 330 mW were recorded. To the best of the authors' knowledge, this is the first time that a AlO-based SA has been used to generate a Q-switched EDFL.
我们报道了氧化铝纳米颗粒（AlO NPs）作为一种可饱和吸收体（SA），用于在C波段区域波长为1560.6 nm的被动调Q掺铒光纤激光器（EDFL）。使用聚乙烯醇（PVA）作为主体聚合物制备了AlO-SA薄膜。在158 mW的阈值泵浦功率下，获得了重复频率为57.8 KHz、脉冲宽度为5.6 μs的非常稳定的脉冲。在330 mW的二极管泵浦功率下，记录到脉冲宽度为2.8 μs、脉冲重复频率为81 kHz、最大脉冲能量为56.7 nJ。据作者所知，这是首次使用基于AlO的SA来产生调Q EDFL。
