title: Bandwidth estimation for ultra-high-speed lithium niobate modulators.
abstract: The effects of velocity matching, impedance matching, conductor loss, and dielectric loss on the optical bandwidth of an ultra-high-speed lithium niobate modulator are reported. It is shown that both dielectric loss and impedance matching play a key role for velocity-matched high-speed modulators with low conductor loss. The effects of etch depth, buffer thickness, electrode width, and thegap between the electrodes on device performance are also illustrated.
authors.affiliation: School of Engineering and Mathematical Sciences, City University, Northampton Square, London EC1V 0HB, United Kingdom.
authors.forename: Shyqyri
authors.initials: S
authors.lastname: Haxha
authors.forename: B M Azizur
authors.initials: BM
authors.lastname: Rahman
authors.forename: Kenneth T V
authors.initials: KT
authors.lastname: Grattan