Search Results - "Qiuhang Zhong"
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Focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces
Published in Optics express (28-07-2014)“…We report on the design and characterization of focusing-curved subwavelength grating couplers for ultra-broadband silicon photonics optical interfaces. With…”
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Journal Article -
2
Analytical Modeling of Silicon Microring and Microdisk Modulators With Electrical and Optical Dynamics
Published in Journal of lightwave technology (15-10-2015)“…We propose an analytical time-domain model for microring and microdisk modulators, which considers both their electrical and optical properties. Theory of the…”
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Journal Article -
3
A Low-Voltage 35-GHz Silicon Photonic Modulator-Enabled 112-Gb/s Transmission System
Published in IEEE photonics journal (01-06-2015)“…We present a silicon photonic traveling-wave Mach-Zehnder modulator operating near 1550 nm with a 3-dB bandwidth of 35 GHz. A detailed analysis of…”
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Journal Article -
4
Counterpropagating Whispering-Gallery-Modes of Rolled-up Semiconductor Microtubes
Published in IEEE photonics technology letters (01-09-2013)“…We report on the first experimental demonstration of counterpropagating whispering-gallery-modes (WGMs) of rolled-up semiconductor microtubes. We studied the…”
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Journal Article -
5
An 80 Gb/s Silicon Photonic Modulator Based on the Principle of Overlapped Resonances
Published in IEEE photonics journal (01-06-2017)“…We report a silicon photonic modulator based on a Mach-Zehnder interferometer (MZI) loaded with a microring modulator (MRM) on one arm and a microring…”
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Journal Article -
6
A lumped michelson interferometric modulator in silicon
Published in 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications (01-06-2014)“…We demonstrate the operation of a low V π L π , lumped, and compact Michelson modulator fabricated in SOI. The modulator operates up to 25 Gbps with measured…”
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Conference Proceeding -
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Controlled coupling of rolled-up microtubes integrated with silicon waveguides
Published in 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications (01-06-2014)“…We demonstrate, for the first time, the controlled coupling of rolled-up microtubes integrated with silicon waveguides by thermally tuning the coupling gap…”
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Conference Proceeding -
8
Analytical modeling for ultra-high-speed microring modulators with electrical and optical dynamics
Published in 2014 The European Conference on Optical Communication (ECOC) (01-09-2014)“…We propose an analytical, time-domain model for microring modulators, which encompasses pn-junction and resonator dynamics. It shows excellent agreement with…”
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Conference Proceeding -
9
Counter-propagating whispering-gallery-modes of InGaAs/GaAs microtubes
Published in CLEO: 2013 (01-06-2013)“…We demonstrate, for the first time, the counter-propagating whispering-gallery-modes of InGaAs/GaAs microtubes. We study the thermo-optic effect in these…”
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Conference Proceeding -
10
High-speed compact silicon photonic Michelson interferometric modulator
Published in Optics express (03-11-2014)“…We present the detailed analysis and characterization of a silicon Michelson modulator with short 500 μm phase shifters and a low VπLπ of 0.72 V-cm under…”
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Journal Article -
11
56-Gbps OOK transmission using silicon microring assisted Mach-Zehnder interferometer
Published in 2016 Conference on Lasers and Electro-Optics (CLEO) (01-06-2016)“…We report a silicon microring assisted Mach-Zehnder interferometer with error free operation up to 38 Gbps. 56 Gbps transmission over 2 km standard single mode…”
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Conference Proceeding -
12
OOK and PAM optical modulation using a single drive push pull silicon Mach-Zehnder modulator
Published in 11th International Conference on Group IV Photonics (GFP) (01-08-2014)“…We report a successful demonstration of 4 level pulse amplitude modulation using a travelling-wave silicon Mach-Zehnder modulator. The modulator operates up to…”
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Conference Proceeding -
13
A 4×4 fully non-blocking switch on SOI based on interferometric thermo-optic phase shifters
Published in 2014 Optical Interconnects Conference (01-05-2014)“…We developed a 4×4 fully non-blocking crossbar switch fabric based on interferometric thermal phase shifters, where heating is achieved using resistive…”
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Conference Proceeding -
14
Characterization of azimuthal and longitudinal modes in rolled-up InGaAs/GaAs microtubes at telecom wavelengths
Published in Optics express (12-08-2013)“…We report on theoretical and experimental investigation of azimuthal and longitudinal modes in rolled-up microtubes at telecom wavelengths. These microtubes…”
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Journal Article -
15
Surface-scattering-induced mode splitting in a rolled-up semiconductor microtube
Published in 2013 IEEE Photonics Conference (01-09-2013)“…We report on the experimental demonstration of mode splitting in a rolled-up semiconductor microtube at telecom wavelengths. Surface scattering causes the…”
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Conference Proceeding -
16
An ultra-broadband fiber grating coupler with focusing curved subwavelength structures
Published in OFC 2014 (01-03-2014)“…We demonstrate the first fiber grating coupler with focusing curved subwavelength structures. An ultra-wide 1-dB bandwidth of over 100 nm with −6.7 dB coupling…”
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Conference Proceeding