基于化学气相沉积法制备的石墨烯/聚甲基丙烯酸甲酯可饱和吸收体锁模的掺铥全光纤激光器。

Thulium-doped all-fiber laser mode-locked by CVD-graphene/PMMA saturable absorber.

作者信息

Sobon Grzegorz, Sotor Jaroslaw, Pasternak Iwona, Krajewska Aleksandra, Strupinski Wlodek, Abramski Krzysztof M

机构信息

Laser & Fiber Electronics Group, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.

出版信息

Opt Express. 2013 May 20;21(10):12797-802. doi: 10.1364/OE.21.012797.

DOI:10.1364/OE.21.012797

PMID:23736498

Abstract

We report an all-fiber Tm-doped fiber laser mode-locked by graphene saturable absorber. The laser emits 1.2 ps pulses at 1884 nm center wavelength with 4 nm of bandwidth and 20.5 MHz mode spacing. The graphene layers were grown on copper foils by chemical vapor deposition (CVD) and transferred onto the fiber connector end. Up to date this is the shortest reported pulse duration achieved from a Tm-doped laser mode-locked by graphene saturable absorber. Such cost-effective and stable fiber lasers might be considered as sources for mid-infrared spectroscopy and remote sensing.

摘要

我们报道了一种由石墨烯可饱和吸收体锁模的全光纤掺铥光纤激光器。该激光器在中心波长1884nm处发射1.2ps脉冲，带宽为4nm，模式间隔为20.5MHz。石墨烯层通过化学气相沉积（CVD）生长在铜箔上，并转移到光纤连接器端。迄今为止，这是由石墨烯可饱和吸收体锁模的掺铥激光器所实现的最短报道脉冲持续时间。这种经济高效且稳定的光纤激光器可被视为中红外光谱学和遥感的光源。