Open AccessWavelength-tunable silicon microring modulator
Author(s) -
Po Dong,
Roshanak Shafiiha,
Shirong Liao,
Hong Liang,
NingNing Feng,
Dazeng Feng,
Guoliang Li,
Xuezhe Zheng,
Ashok V. Krishnamoorthy,
Mehdi Asghari
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.010941
Subject(s) - extinction ratio , materials science , optics , optoelectronics , wavelength , bandwidth (computing) , silicon photonics , silicon , physics , telecommunications , computer science
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.