Graphene mode-locked femtosecond laser at 2 μm wavelength

• المؤلفون الرئيسيون: Ma, J., Xie, G. Q., Lv, P., Gao, W. L., Yuan, P., Qian, L. J., Yu, H. H., Zhang, H. J., Wang, J. Y., Tang, Dingyuan
• مؤلفون آخرون: School of Electrical and Electronic Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2013
• الموضوعات: DRNTU::Engineering::Electrical and electronic engineering
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/100208; http://hdl.handle.net/10220/10975
• المؤسسة: Nanyang Technological University

We experimentally demonstrated a passively mode-locked femtosecond laser by using a graphene-based saturable absorber mirror (graphene SAM) in the spectral region of 2 μm. The graphene SAM was fabricated by transferring chemical-vapor-deposited, high-quality, and large-area graphene on a highly reflective plane mirror. Stable mode-locked laser pulses as short as 729 fs were obtained with a repetition rate of 98.7 MHz and an average output power of 60.2 mW at 2018 nm.