State Key Laboratory of Information Photonics and Optical Communications, School of Science, P. O. Box 122, Beijing University of Posts and Telecommunications, Beijing 100876, People's Republic of China. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Nanotechnology. 2018 Sep 28;29(39):394002. doi: 10.1088/1361-6528/aad0b3. Epub 2018 Jul 3.
Two-dimensional materials have been widely used as optical modulator materials in mode-locked fiber lasers. In terms of the performance of the fiber laser, one with an ultrashort pulse and high stability has great commercial value. Herein, the MoSe grown by the chemical vapor deposition (CVD) method with high modulation depth, quality lattice structure and uniformity is successfully applied in a mode-locked erbium-doped fiber laser. The pulse duration and signal-to-noise ratio of the laser are 207 fs and 85 dB, respectively. The multifarious performance comparisons indicate that the CVD-based MoSe saturable absorber with the tapered fiber structure has unique advantages not only in the generation of ultrashort pulses, but also in the optimization of laser stability.
二维材料已被广泛用作锁模光纤激光器中的光调制材料。就光纤激光器的性能而言，具有超短脉冲和高稳定性的光纤激光器具有巨大的商业价值。在此，通过化学气相沉积（CVD）方法生长的调制深度高、晶格结构质量好且均匀的 MoSe 成功应用于锁模掺铒光纤激光器中。激光的脉冲持续时间和信噪比分别为 207fs 和 85dB。多种性能比较表明，基于 CVD 的具有锥形光纤结构的 MoSe 可饱和吸收体不仅在超短脉冲的产生方面具有独特的优势，而且在激光稳定性的优化方面也具有优势。
