Title :
Phase matched transmission line design for high-speed optical modulators
Author :
Marraccini, Philip J. ; Morrissey, Padraic ; Jezzini, Moises ; Sadiq, Muhammad ; Hua Yang ; Crowley, Michael ; Kelly, Nicholas ; YanBo Li ; Lei Gao ; Corbett, Brandon ; Peters, F.H.
Author_Institution :
Tyndall Nat. Inst., Univ. Coll. Cork, Cork, Ireland
Abstract :
In this paper we present a transmission line design to achieve phase matched lines for high-speed optical modulators. The layout presented is for transmission lines that start off equally spaced. The mathematical relation to achieve phase matching between the lines is derived by making the path length difference zero. Example transmission line layouts using co-planar waveguide are generated based upon the specifications of some Mach-Zehnder Modulators (MZM) and in-phase/quadrature (IQ) MZMs that have been designed. The design method is then verified by comparing the phase of the transmission lines in a commercial full-wave electromagnetic program.
Keywords :
high-speed optical techniques; optical design techniques; optical modulation; optical phase matching; transmission lines; MZM; Mach-Zehnder modulators; coplanar waveguide; high-speed optical modulators; path length difference; phase matching; transmission line design; Mach-Zehnder Modulator RF design; Optical modulators; high-density PIC layout;
Conference_Titel :
Irish Signals & Systems Conference 2014 and 2014 China-Ireland International Conference on Information and Communications Technologies (ISSC 2014/CIICT 2014). 25th IET
Conference_Location :
Limerick
DOI :
10.1049/cp.2014.0673
