Scalar nanosecond pulse generation in a nanotube mode-locked environmentally stable fiber laser

Woodward, RI and Kelleher, EJR and Popa, D and Hasan, T and Bonaccorso, F and Ferrari, AC and Popov, SV and Taylor, JR (2014) Scalar nanosecond pulse generation in a nanotube mode-locked environmentally stable fiber laser. IEEE Photonics Technology Letters, 26. pp. 1672-1675. ISSN 1041-1135

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%. © 1989-2012 IEEE.