Wavelength-tunable silicon microring modulator.
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.
Dong
Po
P
Kotura Inc., 2630 Corporate Place, Monterey Park, CA, 91754, USA. pdong@kotura.com
Shafiiha
Roshanak
R
Liao
Shirong
S
Liang
Hong
H
Feng
Ning-Ning
NN
Feng
Dazeng
D
Li
Guoliang
G
Zheng
Xuezhe
X
Krishnamoorthy
Ashok V
AV
Asghari
Mehdi
M
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
D012825:Silicon