Electrical Engineering

Wooram Lee

Contact School of Electrical and Computer Engineering Phone: 607-***-****

Information Cornell University E-mail: *****@*******.*********, NY 14853,

USA

http://unic.ece.cornell.edu/Wooram.htm

Research High-performance integrated circuits inspired by nonlinear wave propagation.

Specialization Current and near-future research topics include:

- Noise squeezing beyond the thermal noise limit

- High-amplitude picosecond pulse generation

- Parametric nonlinear process for signal generation and amplification

- Electrical/optical hybrid circuits and optically inspired signal processing

Education Cornell University, Ithaca, NY USA

Ph.D., Electrical and Computer Engineering Sep. 2007 May 2012 (expected)

-Dissertation Topic: Nonlinear circuits for signal generation and processing

-Adviser: Professor Ehsan Afshari

- Minor in Applied and Engineering Physics

Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea

M.S., Electrical Engineering with the highest honors Feb. 2003

-Thesis Topic: Injection-Locked Fabry-Perot Laser for WDM-PON

-Adviser: Professor Y.C. Chung

B.S., Electrical Engineering,Magna Cum Laude Feb. 2001

Honors and IEEE Solid State Circuits Society (SSCS)

Awards - Predoctoral Fellowship, the sole winner for 201*-****-****

- $23,000 for tuition+stipend and $2,000 for department

IEEE Workshop on Passive Microwave Circuits 2010

- Best Paper Award, given to the top three presentations 2010

IEEE RadarCon 2009

- Best Student Paper Award and Travel Grant Award 2009

The Samsung Scholarship Foundation

- Predoctoral Fellowship 2007 2012

- $50,000 per year for tuition+stipend, five-year full scholarship for Ph.D study

Korean Government Overseas Scholarship [declined to avoid duplicate support]

- $38,000 per year for tuition+stipend, three-year scholarship for Ph.D study 2006

- one of two awardees selected in electrical engineering

Electronics and Telecommunications Research Institute (ETRI)

- Best Paper Award, given to the top three journal papers published in 2006 2007

- Rookie of the Year, awarded to the best new employee in 2003 2004

Korea Advanced Institute of Science and Technology (KAIST)

- Full Scholarship for bacheor's and master's degrees 1997 2003

Korean Ministry of Education, Science and Technology and the dailyJoongAng

- Silver Medalist in National Physics Competition 1996

- First prize in Inchon Physics Competition 1996

1 of 4

Research Cornell University, Ithaca, NY USA

Experience

Research Assistant, UNIC Group September 2007 to Present

Exploited nonlinearity in integrated circuit design to go beyond the transistor limits

of noise, speed, and e ciency:

- Noise squeezing for ultra-low noise amplification and oscillation

Achieved sensitivity close to the thermal noise limit in one quadruture phase using

a 10-GHz low-noise amplifier in a 0.13- m CMOS process: the first demonstration

of noise squeezing in electrical circuits. (TCAS2011, TMTT2012)

- Picosecond pulse generation in a nonlinear electrical medium

Demonstrated an integrated nonlinear 2-D LC lattice that generates pulses as nar-

row as 6 psec with amplitude higher than 2.7 V in a 0.13- m CMOS process: the

narrowest pulse width achieved for high-amplitude pulses (>1 V) reported in any

CMOS processes. (TMTT2010, TMTT2012)

- Electrical parametric oscillator for frequency synthesis

Demonstrated the first CMOS passive frequency divider based on electrical para-

metric oscillator, operating at 20 GHz with low phase noise in a 0.13- m CMOS

process. (JSSC2010)

- Nonlinear delay-locked loop for high-speed interconnects

Designed a delay-locked nonlinear transmission line for high frequency intercon-

nects in a 0.13- m CMOS process. This structure effectively compensates the loss

and dispersion in electrical interconnects using a delay-controlled soliton.

Teaching Cornell University, Ithaca, NY USA

Experience

Teaching Assistant, ECE department Fall 2010

- ECE 4530, Analog Integrated Circuits Design

Conducted o ce hours and supervised a 4-hour lab in which senior undergraduate

students learn design and layout of advanced analog circuits (43 students)

Professional IBM T.J. Watson Research Center, Yorktown Heights, NY

Experience

Research intern, RF Circuits and Systems Summer 2011

- Designed a high-conversion-gain, power-e cient 90-GHz frequency multiplier for

millimeter-wave phase array system in a 90-nm SiGe process.

- Designed a high-power 240-GHz frequency quadrupler in a 90-nm SiGe process.

Electronics and Telecommunications Research Institute, Daejeon, Korea

Research staff, Optical Communications Research Center Feb 2003 to July 2007

Developed optical links and transceivers for wavelength-division multiplexed (WDM)

passive optical network (PON):

- Developed wavelength-independent optical network terminals using reflective semi-

conductor optical amplifier.

- Proposed 1) gain-saturation, 2) wavelength detuning, and 3) feed-forward current

injection techniques for optical wavelength reuse (PTL2005, PTL2006, OFC2007).

- Succeeded in developing the first 1.25-Gb/s WDM-PON for commercialization.

Mentoring and Tumay Kanar, Undergrad student, ECE, Cornell University. 2009-2010

Supervising Project: Nonlinear transmission line for sharp pulse generation in a CMOS

process.

Pervaze Humayun, Master's student, ECE, Cornell University. 2010-2011

Project: Nonlinear CMOS delay-locked loop for high-speed interconnects.

C.2 Wooram Lee, Farid Amoozegar, and Ehsan Afshari, \Picosecond Pulse Genera-

tion on CMOS: Design Beyond Transistor Limits," Proc. of IEEE Radar Conference

2009, Pasadena, California, USA(Best Student Paper Award and Travel Grant

Award).

C.3Wooram Lee, Seung Hyun Cho, Mahn Young Park,, Jie Hyun Lee, Chulyoung Kim,

Geon Jeong, and Byoung Whi Kim, \Optical Transceiver employing an RSOA with

Feed-Forward Current Injection,"OFC2007, Anaheim, California, USA.

C.4Seung Hyun Cho, Wooram Lee, Mahn Young Park, Jie Hyun Lee, Chulyoung Kim,

Geon Jeong, and Byoung Whi Kim, \Demonstration of Burst Amplified Uplink for

RSOA-based WDM/TDM Hybrid PON Systems Using SOA as a Multi-Channel Pream-

plifier,"ECOC 2006, Cannes, France.

C.

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