Wideband wavelength-tunable ultrafast fiber laser based on black phosphorus saturable absorber. (30th October 2018)

• Record Type: Journal Article
• Authors: Li, Wenlei; Chen, Guangwei; Wang, Guomei; Zeng, Chao; Zhao, Wei
• Is Part Of: Laser physics letters. Volume 15:Number 12(2018:Dec.)
• Publication Date: 2018-10-30
• Subjects: black phosphorus -- wavelength tunability -- mode locking -- fibre laser; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aae786
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We report a wideband wavelength-tunable ultrafast fiber laser mode-locked with a few-layer black phosphorus (BP) saturable absorber. The proposed laser not only delivers picosecond stable conventional solitons but also exhibits flexible wavelength tunability from 1529 to 1592 nm. It is experimentally demonstrated that the broadband saturable absorption property of BP and birefringence filtering effects in the cavity contribute significantly to the aforementioned merits. In addition, the round-trip model is established to numerically demonstrate the spectral evolution, and numerical results are in good agreement with experimental observations. The proposed laser system is compact and wavelength-tunable, which provides an efficient solution for applications where a widely tunable ultrafast fiber laser is required.