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1991 …2019
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Research Output 1991 2019

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2019

A Temperature Controller IC for Maximizing Si Micro-Ring Modulator Optical Modulation Amplitude

Kim, M. H., Zimmermann, L. & Choi, W-Y., 2019 Feb 15, In : Journal of Lightwave Technology. 37, 4, p. 1200-1206 7 p., 8598657.

Research output: Contribution to journalArticle

light modulation
integrated circuits
modulators
controllers
rings

High-power broad-area laser diode performance improvement with a double pedestal structure

Kim, Y., Yang, J. T. & Choi, W-Y., 2019 Jan 1, In : Japanese Journal of Applied Physics. 58, 4, 042004.

Research output: Contribution to journalArticle

Semiconductor lasers
semiconductor lasers
heat
sinking
High power lasers

Parametric optimization of depletion-type Si micro-ring modulator performances

Kim, Y., Jo, Y., Kim, M., Yu, B. M., Mai, C., Lischke, S., Zimmermann, L. & Choi, W-Y., 2019 Jan 1, In : Japanese Journal of Applied Physics. 58, 6, 062006.

Research output: Contribution to journalArticle

Open Access
Modulators
modulators
depletion
optimization
rings
2018
Clock and data recovery circuits (CDR circuits)
Pulse amplitude modulation
Clocks
Detectors
Recovery
4 Citations (Scopus)
Photodetectors
avalanches
photometers
CMOS
Silicon
7 Citations (Scopus)

Single-chip si optical single-sideband modulator

Yu, B. M., Lee, J. M., Mai, C., Lischke, S., Zimmermann, L. & Choi, W. Y., 2018 Jan 1, In : Photonics Research. 6, 1, p. 6-11 6 p.

Research output: Contribution to journalArticle

sidebands
Modulators
modulators
chips
quadratures
2017
1 Citation (Scopus)

A 25-Gb/s Monolithic Optical Receiver with Improved Sensitivity and Energy Efficiency

Jung, H. Y., Lee, J. M., Lischke, S., Knoll, D., Zimmermann, L. & Choi, W. Y., 2017 Sep 1, In : IEEE Photonics Technology Letters. 29, 17, p. 1483-1485 3 p., 7990195.

Research output: Contribution to journalArticle

Optical receivers
Photodetectors
Bit error rate
Energy efficiency
receivers
8 Citations (Scopus)

A linear equivalent circuit model for depletion-type silicon microring modulators

Shin, M., Ban, Y., Yu, B. M., Kim, M. H., Rhim, J., Zimmermann, L. & Choi, W-Y., 2017 Mar 1, In : IEEE Transactions on Electron Devices. 64, 3, p. 1140-1145 6 p., 7835671.

Research output: Contribution to journalArticle

Silicon
Equivalent circuits
Modulators
Modulation
Light modulation
4 Citations (Scopus)

A Mach-Zehnder Modulator Bias Controller Based on OMA and Average Power Monitoring

Kim, M. H., Yu, B. M. & Choi, W-Y., 2017 Dec 1, In : IEEE Photonics Technology Letters. 29, 23, p. 2043-2046 4 p., 8066353.

Research output: Contribution to journalArticle

Modulators
Mach number
integrated circuits
Integrated circuits
modulators
1 Citation (Scopus)

Influence of dynamic power dissipation on Si MRM modulation characteristics

Yu, B. M., Shin, M., Kim, M. H., Zimmermann, L. & Choi, W-Y., 2017 Jul 10, In : Chinese Optics Letters. 15, 7, 071301.

Research output: Contribution to journalArticle

Modulators
modulators
Energy dissipation
dissipation
Modulation
4 Citations (Scopus)

Series resistance influence on performance of waveguidetype germanium photodetectors on silicon

Lee, J. M., Kim, M. & Choi, W-Y., 2017 Oct 10, In : Chinese Optics Letters. 15, 10, 100401.

Research output: Contribution to journalArticle

Germanium
Silicon
Photodetectors
photometers
germanium
2016

A 10-Gb/s multiphase clock and data recovery circuit with a rotational bang-bang phase detector

Kwon, D. H., Rhim, J. & Choi, W-Y., 2016 Jun 1, In : Journal of Semiconductor Technology and Science. 16, 3, p. 287-292 6 p.

Research output: Contribution to journalArticle

Clock and data recovery circuits (CDR circuits)
Clocks
Detectors
Recovery
Jitter
12 Citations (Scopus)

A Low-Voltage PLL with a Supply-Noise Compensated Feedforward Ring VCO

Kim, S. G., Rhim, J., Kwon, D. H., Kim, M. H. & Choi, W-Y., 2016 Jun 1, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 63, 6, p. 548-552 5 p., 7410038.

Research output: Contribution to journalArticle

Variable frequency oscillators
Phase locked loops
Electric potential
Networks (circuits)
10 Citations (Scopus)

An equivalent circuit model for a Ge Waveguide Photodetector on Si

Lee, J. M., Cho, S. H. & Choi, W-Y., 2016 Nov 1, In : IEEE Photonics Technology Letters. 28, 21, p. 2435-2438 4 p., 7572036.

Research output: Contribution to journalArticle

Photodetectors
equivalent circuits
Equivalent circuits
photometers
Waveguides
6 Citations (Scopus)

Effects of Parasitic Resistance on the Performance of Silicon Avalanche Photodetectors in Standard CMOS Technology

Lee, M. J. & Choi, W-Y., 2016 Jan 1, In : IEEE Electron Device Letters. 37, 1, p. 60-63 4 p., 7312931.

Research output: Contribution to journalArticle

Silicon
Photodetectors
Metals
Bandwidth
Current voltage characteristics
7 Citations (Scopus)

Parametric characterization of self-heating in depletion-type Si micro-ring modulators

Shin, M. J., Ban, Y., Yu, B. M., Rhim, J., Zimmermann, L. & Choi, W-Y., 2016 Nov 1, In : IEEE Journal on Selected Topics in Quantum Electronics. 22, 6, 7462176.

Research output: Contribution to journalArticle

Modulators
modulators
depletion
Heating
heating
2015
3 Citations (Scopus)

A clock and data recovery circuit with programmable multi-level phase detector characteristics and a built-in jitter monitor

Kwon, D. H., Park, Y. S. & Choi, W-Y., 2015 Jun 1, In : IEEE Transactions on Circuits and Systems I: Regular Papers. 62, 6, p. 1472-1480 9 p., 7112583.

Research output: Contribution to journalArticle

Clock and data recovery circuits (CDR circuits)
Jitter
Detectors
Clocks
Recovery
12 Citations (Scopus)

A High-Speed CMOS Integrated Optical Receiver with an Under-Damped TIA

Jung, H. Y., Lee, J. M. & Choi, W. Y., 2015 Jul 1, In : IEEE Photonics Technology Letters. 27, 13, p. 1367-1370 4 p., 7086304.

Research output: Contribution to journalArticle

Optical receivers
Operational amplifiers
Photodetectors
CMOS
Electric power utilization

A single-bit sampling demodulator for biomedical implants

Kim, D., Ko, M., Ng, D. & Choi, W-Y., 2015 Jun 8, In : Microelectronics Journal. 46, 8, p. 669-673 5 p.

Research output: Contribution to journalArticle

demodulators
phase shift keying
Demodulators
Phase shift keying
sampling
4 Citations (Scopus)

Bandwidth improvement of CMOS-APD with carrier-acceleration technique

Lee, M. J., Lee, J. M., Rücker, H. & Choi, W-Y., 2015 Jul 1, In : IEEE Photonics Technology Letters. 27, 13, p. 1387-1390 4 p., 7083731.

Research output: Contribution to journalArticle

Photodetectors
avalanches
photometers
CMOS
Metals
5 Citations (Scopus)

Low-power 850 nm optoelectronic integrated circuit receiver fabricated in 65 nm complementary metal-oxide semiconductor technology

Youn, J. S., Lee, M. J., Park, K. Y., Kim, W. S. & Choi, W-Y., 2015 May 1, In : IET Circuits, Devices and Systems. 9, 3, p. 221-226 6 p.

Research output: Contribution to journalArticle

Integrated optoelectronics
Metals
Operational amplifiers
Equalizers
Photodetectors
11 Citations (Scopus)

Verilog-A behavioral model for resonance-modulated silicon micro-ring modulator

Rhim, J., Ban, Y., Yu, B. M., Lee, J. M. & Choi, W. Y., 2015 Jan 1, In : Optics Express. 23, 7, p. 8762-8772 11 p.

Research output: Contribution to journalArticle

modulators
rings
silicon
electronics
equivalent circuits
2014

25-Gb/s optical transmitter with Si ring modulator and CMOS driver

Rhim, J., Lee, J. M., Yu, B. M., Ban, Y., Cho, S. H. & Choi, W-Y., 2014 Jan 1, In : Journal of the Optical Society of Korea. 18, 5, p. 564-568 5 p.

Research output: Contribution to journalArticle

transmitters
modulators
CMOS
rings
wire
23 Citations (Scopus)

A 0.4-V, 90 ∼ 350-MHz PLL with an active loop-filter charge pump

Moon, J. W., Choi, K. C. & Choi, W-Y., 2014 Jan 1, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 61, 5, p. 319-323 5 p., 6805603.

Research output: Contribution to journalArticle

Phase locked loops
Pumps
Variable frequency oscillators
Tuning
Calibration
12 Citations (Scopus)

A fully-integrated 12.5-Gb/s 850-nm CMOS optical receiver based on a spatially-modulated avalanche photodetector

Lee, M. J., Youn, J. S., Park, K. Y. & Choi, W-Y., 2014 Feb 10, In : Optics Express. 22, 3, p. 2511-2518 8 p.

Research output: Contribution to journalArticle

avalanches
photometers
receivers
metals
amplifiers
2 Citations (Scopus)

Design optimization of hybrid-integrated 20-Gb/s optical receivers

Jung, H. Y., Youn, J. S. & Choi, W-Y., 2014 Jan 1, In : Journal of Semiconductor Technology and Science. 14, 4, p. 443-450 8 p.

Research output: Contribution to journalArticle

Optical receivers
Networks (circuits)
Buffers
Operational amplifiers
Photodetectors

Multi-band VCO PLL with continuously maintained optimum VCO control voltage

Park, Y. S., Kwon, D. H., Choi, K. C. & Choi, W-Y., 2014 Jun 5, In : Electronics Letters. 50, 12, p. 857-859 3 p.

Research output: Contribution to journalArticle

Variable frequency oscillators
Phase locked loops
Voltage control
Electric potential
8 Citations (Scopus)
Photodetectors
avalanches
photometers
CMOS
bandwidth
11 Citations (Scopus)

SNR characteristics of 850-nm OEIC receiver with a silicon avalanche photodetector

Youn, J. S., Lee, M. J., Park, K. Y., Rücker, H. & Choi, W-Y., 2014 Jan 13, In : Optics Express. 22, 1, p. 900-907 8 p.

Research output: Contribution to journalArticle

avalanches
integrated circuits
photometers
signal to noise ratios
receivers
2013
7 Citations (Scopus)

A 990-μW 1.6-GHz PLL based on a novel supply-regulated active-loop-filter VCO

Choi, K. C., Kim, S. G., Lee, S. W., Lee, B. C. & Choi, W-Y., 2013 May 27, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 60, 6, p. 311-315 5 p., 6518184.

Research output: Contribution to journalArticle

Variable frequency oscillators
Phase locked loops
Phase noise
Jitter
Electric power utilization
33 Citations (Scopus)
Silicon
Photodetectors
Frequency response
Metals
Transit time devices
6 Citations (Scopus)

Silicon photonics-wireless interface ICs for micro-/millimeter-wave fiber-wireless networks

Ko, M., Lee, M. J., Rücker, H. & Choi, W-Y., 2013 Sep 23, In : Optics Express. 21, 19, p. 22962-22973 12 p.

Research output: Contribution to journalArticle

millimeter waves
integrated circuits
photonics
fibers
silicon
2012
53 Citations (Scopus)

10-Gb/s 850-nm CMOS OEIC receiver with a silicon avalanche photodetector

Youn, J. S., Lee, M. J., Park, K. Y. & Choi, W-Y., 2012 Feb 1, In : IEEE Journal of Quantum Electronics. 48, 2, p. 229-236 8 p., 6032702.

Research output: Contribution to journalArticle

Integrated optoelectronics
Photodetectors
avalanches
integrated circuits
photometers
10 Citations (Scopus)

A 10-Gb/s adaptive look-ahead decision feedback equalizer with an eye-opening monitor

Seong, C. K., Rhim, J. & Choi, W. Y., 2012 Apr 1, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 59, 4, p. 209-213 5 p., 6156431.

Research output: Contribution to journalArticle

Decision feedback equalizers
Intersymbol interference
Polychlorinated biphenyls
Electric potential

A 150-Mb/s CMOS monolithic optical receiver for plastic optical fiber link

Park, K. Y., Oh, W. S., Ham, K. S. & Choi, W-Y., 2012 Mar 1, In : Journal of the Optical Society of Korea. 16, 1, p. 1-5 5 p.

Research output: Contribution to journalArticle

plastic fibers
CMOS
receivers
optical fibers
photodiodes

A 5.28-Gb/s serializer ASIC for uncompressed long-haul multimedia interconnects

Park, K. Y., Oh, W. S., Choi, J. C. & Choi, W-Y., 2012 Oct 1, In : Analog Integrated Circuits and Signal Processing. 73, 1, p. 385-395 11 p.

Research output: Contribution to journalArticle

Application specific integrated circuits
Clock and data recovery circuits (CDR circuits)
Surface emitting lasers
Phase locked loops
Multimode fibers
14 Citations (Scopus)

A 5.4-Gbit/s adaptive continuous-time linear equalizer using asynchronous undersampling histograms

Kim, W. S., Seong, C. K. & Choi, W-Y., 2012 Sep 5, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 59, 9, p. 553-557 5 p., 6287563.

Research output: Contribution to journalArticle

Equalizers
Polychlorinated biphenyls
Clocks
Statistical methods
Synchronization
1 Citation (Scopus)

An 8-Gb/s inductorless adaptive passive equalizer in 0.18-μm CMOS technology

Moon, J. W. & Choi, W-Y., 2012 Dec 1, In : Journal of Semiconductor Technology and Science. 12, 4, p. 405-410 6 p.

Research output: Contribution to journalArticle

Equalizers
Polychlorinated Biphenyls
Polychlorinated biphenyls
Frequency response
Electric power utilization
15 Citations (Scopus)

An integrated 12.5-Gb/s optoelectronic receiver with a silicon avalanche photodetector in standard SiGe BiCMOS technology

Youn, J. S., Lee, M. J., Park, K. Y., Rücker, H. & Choi, W-Y., 2012 Dec 17, In : Optics Express. 20, 27, p. 28153-28162 10 p.

Research output: Contribution to journalArticle

avalanches
integrated circuits
photometers
receivers
silicon
13 Citations (Scopus)

A time-to-digital converter based on a multiphase reference clock and a binary counter with a novel sampling error corrector

Choi, K. C., Lee, S. W., Lee, B. C. & Choi, W. Y., 2012 Mar 1, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 59, 3, p. 143-147 5 p., 6145624.

Research output: Contribution to journalArticle

Clocks
Sampling
Networks (circuits)
10 Citations (Scopus)

Dual-loop dual-modulation optoelectronic oscillators with highly suppressed spurious tones

Kim, J. Y., Jo, J. H., Choi, W-Y. & Sung, H. K., 2012 Apr 18, In : IEEE Photonics Technology Letters. 24, 8, p. 706-708 3 p., 6151031.

Research output: Contribution to journalArticle

Optoelectronic devices
radio frequencies
oscillators
Modulation
low frequencies
39 Citations (Scopus)

Effects of guard-ring structures on the performance of silicon avalanche photodetectors fabricated with standard CMOS technology

Lee, M. J., Rücker, H. & Choi, W-Y., 2012 Jan 1, In : IEEE Electron Device Letters. 33, 1, p. 80-82 3 p., 6087265.

Research output: Contribution to journalArticle

Silicon
Photodetectors
Metals
Electric fields
Bandwidth
13 Citations (Scopus)
Variable frequency oscillators
Phase locked loops
Bias currents
Networks (circuits)
Bias voltage
7 Citations (Scopus)

Silicon photonics-wireless interface IC for 60-GHz wireless link

Ko, M., Youn, J. S., Lee, M. J., Choi, K. C., Rücker, H. & Choi, W-Y., 2012 Jun 6, In : IEEE Photonics Technology Letters. 24, 13, p. 1112-1114 3 p., 6194276.

Research output: Contribution to journalArticle

Silicon
Photonics
Interfaces (computer)
Telecommunication links
integrated circuits
2011
1 Citation (Scopus)

3-Gb/s 60-GHz link with SiGe BiCMOS receiver front-end and CMOS mixed-mode QPSK demodulator

Ko, M., Kim, D., Rücker, H. & Choi, W-Y., 2011 Jan 1, In : Journal of Semiconductor Technology and Science. 11, 4, p. 256-261 6 p.

Research output: Contribution to journalArticle

Demodulators
Quadrature phase shift keying
Telecommunication links
Metals
Mixer circuits
6 Citations (Scopus)

A bandwidth adjustable integrated optical receiver with an on-chip silicon avalanche photodetector

Youn, J. S., Lee, M. J., Park, K. Y., Rücker, H. & Choi, W-Y., 2011 Apr 10, In : ieice electronics express. 8, 7, p. 404-409 6 p.

Research output: Contribution to journalArticle

Optical receivers
Silicon
Photodetectors
avalanches
photometers
6 Citations (Scopus)

A silicon balanced subharmonic optoelectronic mixer for 60-GHz fiber-wireless downlink application

Ko, M., Kim, J. Y., Lee, M. J., Rücker, H. & Choi, W-Y., 2011 Nov 22, In : IEEE Photonics Technology Letters. 23, 23, p. 1805-1807 3 p., 6029414.

Research output: Contribution to journalArticle

Mixer circuits
Avalanche photodiodes
Silicon
Optoelectronic devices
avalanches
3 Citations (Scopus)

A study on modulation configuration of optoelectronic oscillators using direct modulation of semiconductor lasers

Kim, J. Y., Choi, W. Y. & Sung, H. K., 2011 Mar 1, In : Japanese Journal of Applied Physics. 50, 3, 032504.

Research output: Contribution to journalArticle

Optoelectronic devices
Semiconductor lasers
semiconductor lasers
oscillators
Modulation
13 Citations (Scopus)

Design of 250-Mb/s low-power fiber optic transmitter and receiver ICs for POF applications

Park, K. Y., Oh, W. S., Choi, J. C. & Choi, W-Y., 2011 Jan 1, In : Journal of Semiconductor Technology and Science. 11, 3, p. 221-228 8 p.

Research output: Contribution to journalArticle

Fiber optics
Transmitters
Plastic optical fibers
Electrostatic discharge
Light emitting diodes
2 Citations (Scopus)

Mixed-mode QPSK demodulator for home networking applications

Kim, D., Ko, M., Choi, K. C. & Choi, W-Y., 2011 Jan 20, In : Electronics Letters. 47, 2, p. 92-94 3 p.

Research output: Contribution to journalArticle

Cable television systems
Demodulators
Quadrature phase shift keying
Data communication systems
Bandwidth