Scalar Nanosecond Pulse Generation in a Nanotube Mode-Locked Environmentally Stable Fiber Laser

Author

Woodward, R.I. ; Kelleher, E.J.R. ; Popa, D. ; Hasan, T. ; Bonaccorso, F. ; Ferrari, A.C. ; Popov, S.V. ; Taylor, J.R.

Author_Institution

Dept. of PhysicsFemtosecond Opt. Group, Imperial Coll. London, London, UK

Volume

26

Issue

16

fYear

2014

fDate

Aug.15, 15 2014

Firstpage

1672

Lastpage

1675

Abstract

We report an environmentally stable nanotube mode-locked fiber laser producing linearly-polarized, nanosecond pulses. A simple all-polarization-maintaining fiber ring cavity is used, including 300 m of highly nonlinear fiber to elongate the cavity and increase intracavity dispersion and nonlinearity. The laser generates scalar pulses with a duration of 1.23 ns at a center wavelength of 1042 nm, with 1.3-nm bandwidth and at 641-kHz repetition rate. Despite the long cavity, the output characteristics show no significant variation when the cavity is perturbed, and the degree of polarization remains at 97%.

Keywords

fibre lasers; laser beams; laser mode locking; nanotubes; nonlinear optics; optical fibre dispersion; optical fibre polarisation; optical pulse generation; ring lasers; all-polarization-maintaining fiber ring cavity; center wavelength; environmentally stable nanotube mode-locked fiber laser; highly nonlinear fiber; intracavity dispersion; linearly-polarized pulses; nonlinearity; output characteristics; polarization degree; scalar nanosecond pulse generation; size 300 m; time 1.23 ns; wavelength 1042 nm; Cavity resonators; Chirp; Dispersion; Graphene; Laser mode locking; Laser stability; Ultrafast optics; Laser mode locking; fiber lasers; optical polarization; optical pulse shaping;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2330739

Filename

6832525