Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Pulse traces of fundamental vector dark pulses before (Initial) and after (x axis and y axis) passing through the PBS and (b) corresponding optical spectra; (c) pulse traces of high order harmonic mode-locked vector dark pulses and (d) corresponding optical spectra.
