Double Wall Carbon Nanotubes for Wide-Band, Ultrafast Pulse Generation
Change log
Authors
Hasan, Tawfique https://orcid.org/0000-0002-6250-7582
Sun, Zhipei
Tan, PingHeng
Popa, Daniel https://orcid.org/0000-0002-5708-743X
Flahaut, Emmanuel
Abstract
We demonstrate wide-band ultrafast optical pulse generation at 1, 1.5, and 2 μm using a single-polymer composite saturable absorber based on double-wall carbon nanotubes (DWNTs). The freestanding optical quality polymer composite is prepared from nanotubes dispersed in water with poly(vinyl alcohol) as the host matrix. The composite is then integrated into ytterbium-, erbium-, and thulium-doped fiber laser cavities. Using this single DWNT polymer composite, we achieve 4.85 ps, 532 fs, and 1.6 ps mode-locked pulses at 1066, 1559, and 1883 nm, respectively, highlighting the potential of DWNTs for wide-band ultrafast photonics.
Description
Keywords
double-wall carbon nanotubes, polymer composites, saturable absorber, ultrafast laser
Journal Title
ACS Nano
Conference Name
Journal ISSN
1936-0851
1936-086X
1936-086X
Volume Title
8
Publisher
ACS Publications
Publisher DOI
Rights
DSpace@Cambridge license
Sponsorship
EPSRC (EP/E500935/1)
EPSRC (GR/S97613/01)
EPSRC (GR/S97613/01)
We acknowledge funding from EPSRC GR/
S97613/01, EP/E500935/1, the ERC Grant NANOPOTS, a Royal
Society Brian Mercer Award for Innovation. A.C.F. is a Royal
Society Wolfson Research Merit Award holder. V.N. wishes to
acknowledge support from the European Research Council (ERC
Starting Grant 2DNanoCaps) and Science Foundation Ireland,
P.T. from National Natural Science Foundation of China, Grants
No. 11225421, F.B. from the Newton International Fellowship,
Z.S. from Teknologiateollisuus TT-100, the European Union's
Seventh Framework Programme (No. 631610), and Aalto University, T.H. from NSFC (Grant No. 61150110487), and the Royal
Academy of Engineering (Graphlex).