LEORG

Current Group Members

Wei Cong

Wei Cong is a Ph.D. graduate student in the Department of Applied Science. His dissertation advisor is Prof. Richard R. Freeman, and his research advisors are Prof. Brian Kolner and Prof. Jonathan Heritage. His current research project focuses on unique methods of Optical Code- Division Multiple-Access (OCDMA) encoding and decoding for fiber communication systems. This work utilizes multi-channel femtosecond pulse shaping by use of a two dimensional Spatial Light Phase Modulator (SLPM). Wei got his B.S. degree in the major field of high pressure physics in July 1999 from the Physics Department at Jilin University, China.

Nicolas Fontaine

Nick is a third year graduate student majoring in Electrical Engineering. Nick got his B.S. degree in Electrical Engineering from UC Davis in 2004. His research interests include nonlinear optics, especially relating to frequency resolved optical gating (FROG) and all of its variants. He is the webmaster for the Kolner group web page. Out of school, he likes to watch live jazz at Yoshi's and to practice a lot of piano.

Chunxin Yang

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Vincent Hernandez

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Theresa Mulder

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Kate Baker

Kate is a senior in Optical Engineering with a minor in Communication. She is still trying to figure out what her research interests are, but she hopes to attend graduate school. She plays clarinet in the UC Davis Marching Band.

Shayna Khatri

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Alumni

Ryan P. Scott

Ryan was Prof. Kolner's Ph.D. student and lab manager at UC Davis. He worked on several different projects, including optical-CDMA, optical arbitrary waveform generation (OAWG), studies of amplitude and phase noise in modelocked lasers, and terahertz time-domain spectroscopy. The optical-CDMA and OAWG projects were done in collaboration with Prof. Heritage and Prof. Yoo. Ryan now works as a research scientist in the Next Generation Networking Systems Laboratory here at UC Davis.

Corey Bennett was a UCLA Electrical Engineering Ph.D. student working with Prof. Kolner on up-conversion time lenses and temporal imaging system aberration analysis. His Master's research was the first demonstration of a time lens based on sum-frequency generation of the input signal and a chirped optical pump. It was used to construct a 12X time microscope system that magnified a 100 Gb/s optical waveform to 8.5 Gb/s, with a resolution of 5 ps. His Ph.D. Dissertation research was an exploration of the limitations of this technology, investigating various sources of temporal aberrations, advancing the concept of temporal ray diagrams, and constructing a the next generation time microscope with a 100X magnification and 100 fs resolution. The work was performed at Lawrence Livermore National Laboratory (LLNL) in conjunction with the Photonics Group. Corey currently works as a research scientist at LLNL.

Robert Buckles was a Ph.D student in the Department of Applied Science, and worked with Prof. Kolner on ultrafast materials characterization with Terahertz Time-Domain Spectroscopy (THz-TDS). His major was electro-optics which focuses on broadband millimeter/submillimeter-wave generation and optics with minors in ultrafast laser optics and plasma physics. He received his BS degrees in Physics and Nuclear Engineering from UCSB, and MS degree in Plasma Physics from UW-Madison. In addition to his graduate research, Robert works part time at Lawrence Livermore National Laboratory, for Lockheed-Martin Nevada Technologies and Bechtel Nevada.

Phil Conklin was a graduate student in the Department of Applied Science. After graduating from the University of California, Davis with a Master's Degree in Applied Science, Phil is currently living in Portland, Oregon and is open to career oppprtunities. His research studies' focused on THz imaging (setup and data acquisition), two-photon interferometric autocorrelators, and the time and frequency measurement of high stability RF oscillators. Phil received his B.S. degree in Physics from Oregon State University.

Carsten Langrock received his Ph.D. degree in Electrical Engineering from Stanford University in 2007. In his dissertation, entitled "Classical and Low-Light-Level Detection and Pulse Characterization using Optical-Frequency Mixers", he explored the use of highly efficient frequency conversion in guided-wave nonlinear optical devices based on periodically poled lithium niobate substrates for classical and quantum optics applications. Single-photon detection at telecommunication wavelengths for quantum key distribution, collinear background-free frequency-resolved optical gating, and guided-wave fiber-feeback optical parametric oscillators are some of the projects he completed during his graduate studies. He has authored or co- authored over 60 peer-reviewed publications. In 1998/99, 2000/01 Carsten worked for the Kolner Group on several projects, including our phase noise measurement system. He is currently working as a research associate in Prof. Martin Fejer's group at Stanford University. You can find out more about Carsten on his homepage.

Jeffrey Cole is a fifth year undergraduate majoring in Optical Science Engineering. He has spent most of his time at the lab designing a laser beam spatial profiler using an Electrim EDC-1000HR CCD camera and Lab View. Jeff also spent a few weeks salvaging parts from a bunch of old HP workstations and turning them into two usable workstations. In Jeff's spare time he likes to record music and brew beer.

José Azaña spent time at UC Davis while working on his Ph.D. from Universidad Politécnica de Madrid (UPM). He is now a professor at Institut national de la recherche scientifique-Énergie, Matériaux et Télécommunications, Université du Québec. His work included the development of fiber bragg gratings (FBGs) for use as dispersive delays.