title: Wavelength-tunable silicon microring modulator.
abstract: We present a wavelength-tunable, compact, high speed and low power silicon microring modulator. With a ring radius of 5 microm, we demonstrate a modulator with a high speed of 12.5 Gbps and a driving voltage of 3 V to achieve approximately 6 dB extinction ratio in high speed measurement. More importantly, tunability of the resonant wavelength is accomplished by means of a microheater on top of the ring, with an efficiency of 2.4 mW/nm (2.4 mW is needed to tune the resonant wavelength by 1 nm). This device aims to solve the narrow bandwidth problem of silicon microcavity modulators and increase the data bandwidth in optical interconnect systems.
authors.affiliation: Kotura Inc., 2630 Corporate Place, Monterey Park, CA, 91754, USA. pdong@kotura.com
authors.forename: Po
authors.initials: P
authors.lastname: Dong
authors.forename: Roshanak
authors.initials: R
authors.lastname: Shafiiha
authors.forename: Shirong
authors.initials: S
authors.lastname: Liao
authors.forename: Hong
authors.initials: H
authors.lastname: Liang
authors.forename: Ning-Ning
authors.initials: NN
authors.lastname: Feng
authors.forename: Dazeng
authors.initials: D
authors.lastname: Feng
authors.forename: Guoliang
authors.initials: G
authors.lastname: Li
authors.forename: Xuezhe
authors.initials: X
authors.lastname: Zheng
authors.forename: Ashok V
authors.initials: AV
authors.lastname: Krishnamoorthy
authors.forename: Mehdi
authors.initials: M
authors.lastname: Asghari
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D006361:Heating / Q000295:instrumentation*; D008904:Miniaturization; D012031:Refractometry / Q000295:instrumentation*; D012825:Silicon; D013685:Telecommunications / Q000295:instrumentation*; D014159:Transducers
chemical_list: D012825:Silicon