Upcoming generations of coherent intra/inter data center interconnects currently lack a clear path toward a reduction of cost and power consumption,which are the driving factors for these data links.In this work,the t...Upcoming generations of coherent intra/inter data center interconnects currently lack a clear path toward a reduction of cost and power consumption,which are the driving factors for these data links.In this work,the tradeoffs associated with a transition from coherent C-band to O-band silicon photonics are addressed and evaluated.The discussion includes the fundamental components of coherent data links,namely the optical components,fiber link and transceivers.As a major component of these links,a monolithic silicon photonic BiCMOS O-band coherent receiver is evaluated for its potential performance and compared to an analogous C-band device.展开更多
We present an accurate, easy-to-use large-signal SPICE circuit model for depletion-type silicon ring modulators(Si RMs). Our model includes both the electrical and optical characteristics of the Si RM and consists of ...We present an accurate, easy-to-use large-signal SPICE circuit model for depletion-type silicon ring modulators(Si RMs). Our model includes both the electrical and optical characteristics of the Si RM and consists of circuit elements whose values change depending on modulation voltages. The accuracy of our model is confirmed by comparing the SPICE simulation results of 25 Gb/s non-return-to-zero(NRZ) modulation with the measurement. The model is used for performance optimization of monolithically integrated Si photonic NRZ and pulse-amplitudemodulation 4 transmitters in the standard SPICE circuit design environment.展开更多
We demonstrate an integrated Si optical single-sideband(OSSB) modulator composed of a parallel dual-ring modulator(PDRM) and a quadrature hybrid coupler(QHC). Both the PDRM and the QHC are carefully designed for 30 GH...We demonstrate an integrated Si optical single-sideband(OSSB) modulator composed of a parallel dual-ring modulator(PDRM) and a quadrature hybrid coupler(QHC). Both the PDRM and the QHC are carefully designed for 30 GHz opearation, and their operations are verified by measurement. The Si OSSB modulator successfully generates a single sideband with larger than 15 dB suppression of the undesired sideband.展开更多
We demonstrate a silicon electronic–photonic integrated 25 Gb/s nonreturn-to-zero transmitter that includes driver circuits,depletion-type Si ring modulator,Ge photodetector,temperature sensor,on-chip heater,and temp...We demonstrate a silicon electronic–photonic integrated 25 Gb/s nonreturn-to-zero transmitter that includes driver circuits,depletion-type Si ring modulator,Ge photodetector,temperature sensor,on-chip heater,and temperature controller,all monolithically integrated on a 0.25μm photonic BiCMOS technology platform.The integrated transmitter successfully provides stable and optimal 25 Gb/s modulation characteristics against external temperature fluctuation.展开更多
基金the GermanResearch Foundation (DFG) through the projects EPIC-Sense (ZI 1283-6-1)and EPIDAC (ZI 1283-7-1)the Federal Ministry of Education andResearch (BMBF) through project PEARLS (13N14932)the EuropeanCommission through project H2020-SPACE-ORIONAS (822002).
文摘Upcoming generations of coherent intra/inter data center interconnects currently lack a clear path toward a reduction of cost and power consumption,which are the driving factors for these data links.In this work,the tradeoffs associated with a transition from coherent C-band to O-band silicon photonics are addressed and evaluated.The discussion includes the fundamental components of coherent data links,namely the optical components,fiber link and transceivers.As a major component of these links,a monolithic silicon photonic BiCMOS O-band coherent receiver is evaluated for its potential performance and compared to an analogous C-band device.
基金Ministry of Trade,Industry and Energy(MOTIE)(10065666)Yonsei University(Research Scholarship Grants)IC Design Education Center(IDEC)
文摘We present an accurate, easy-to-use large-signal SPICE circuit model for depletion-type silicon ring modulators(Si RMs). Our model includes both the electrical and optical characteristics of the Si RM and consists of circuit elements whose values change depending on modulation voltages. The accuracy of our model is confirmed by comparing the SPICE simulation results of 25 Gb/s non-return-to-zero(NRZ) modulation with the measurement. The model is used for performance optimization of monolithically integrated Si photonic NRZ and pulse-amplitudemodulation 4 transmitters in the standard SPICE circuit design environment.
基金Korean Ministry of Science,ICT and Future Planning(MSIP)(2015R1A2A2A01007772)Korean Ministry of Trade,Industry and Energy(MOTIE)(10065666)
文摘We demonstrate an integrated Si optical single-sideband(OSSB) modulator composed of a parallel dual-ring modulator(PDRM) and a quadrature hybrid coupler(QHC). Both the PDRM and the QHC are carefully designed for 30 GHz opearation, and their operations are verified by measurement. The Si OSSB modulator successfully generates a single sideband with larger than 15 dB suppression of the undesired sideband.
基金Ministry of Trade,Industry and Energy(10065666)National Research Foundation of Korea(2020R1A2C201508911)Yonsei University.
文摘We demonstrate a silicon electronic–photonic integrated 25 Gb/s nonreturn-to-zero transmitter that includes driver circuits,depletion-type Si ring modulator,Ge photodetector,temperature sensor,on-chip heater,and temperature controller,all monolithically integrated on a 0.25μm photonic BiCMOS technology platform.The integrated transmitter successfully provides stable and optimal 25 Gb/s modulation characteristics against external temperature fluctuation.
