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- Title
Broadband synchronization of ultrafast pulse generation with double-walled carbon nanotubes.
- Authors
Zheng, Jiancheng; Li, Diao; Liu, Peng; Cui, Xiaoqi; Zhang, Bin; Geng, Wei; Zhang, Qiang; Xu, Zhenyu; Kauppinen, Esko I.; Sun, Zhipei
- Abstract
Double-walled carbon nanotubes have shown competitive properties in broadband optical pulse generation owning to the intrinsic electronic properties. Synchronization of ultrafast optical pulses in multiple wavelengths is a key technique for numerous applications, such as nonlinear frequency conversion, ultrafast pump-probe, coherent Raman scattering spectroscopy, coherent optical synthesis, etc. In this work, we demonstrate the mode-locking and synchronization of 1.55 µm pulses with 1 µm and 1.9 µm pulses via a single saturable absorber based on double-walled carbon nanotubes. The large optical nonlinearity and broadband optical absorption in the double-walled carbon nanotubes enable independent and synchronized mode-locking in >900 nm bandwidth. In addition, we present a creative concept to realize multi-wavelength synchronization from a single laser system. Our results demonstrate a straightforward and feasible approach towards pulse synchronization over ultra-broad bandwidth with flexible wavelength selection in the near-infrared region.
- Subjects
CARBON nanotubes; OPTICAL pulse generation; MODE-locked lasers; FREQUENCY changers; NONLINEAR optical spectroscopy; SYNCHRONIZATION; RAMAN scattering
- Publication
Nanophotonics (21928606), 2023, Vol 12, Issue 17, p3397
- ISSN
2192-8606
- Publication type
Article
- DOI
10.1515/nanoph-2023-0192