A repository & source of cutting edge news about emerging terahertz technology, it's commercialization & innovations in THz devices, quality & process control, medical diagnostics, security, astronomy, communications, applications in graphene, metamaterials, CMOS, compressive sensing, 3d printing, and the Internet of Nanothings. NOTHING POSTED IS INVESTMENT ADVICE! REPOSTED COPYRIGHT IS FOR EDUCATIONAL USE.
Wednesday, November 28, 2012
Abstract-Terahertz-bandwidth coherence measurements of a quantum dash laser in passive and active mode-locking operation
Eamonn Martin, Regan Watts, Laurent Bramerie, Alexandre Shen, Harry Gariah, Fabrice Blache, Francois Lelarge, and Liam Barry
http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-37-23-4967
This research carries out coherence measurements of a 42.7 GHz quantum dash (QDash) semiconductor laser when passively, electrically, and optically mode-locked. Coherence of the spectral lines from the mode-locked laser is determined by examining the radio frequency beat-tone linewidth as the mode spacing is increased up to 1.1 THz. Electric-field measurements of the QDash laser are also presented, from which a comparison between experimental results and accepted theory for coherence in passively mode-locked lasers has been performed.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment