Ming C. Wu (Advisor)

Research Advised by Professor Ming C. Wu

BPN986: Microlens Input/Output Couplers for Photonic Chips (New Project)

Jianheng Luo
Johannes Henriksson
2022

Silicon photonics leveraging CMOS fabrication technologies has potential to produce low-cost integrated optics in mass production. Optical packaging presents a challenge for silicon photonic applications due to the large mode size mismatch between on-chip waveguides and optical fiber. We demonstrate a low-loss, alignment-tolerant and broadband input/output couplers for silicon photonic chips by using microlens.

BPN961: Scalable Photonic Integrated Circuits for Trapped Ion Quantum Computers

Daniel Klawson
Chun-Yuan Fan
Rohan Kumar
2022

Quantum computing is a new paradigm of computing that promises exponential performance increases for certain tasks as compared to classical computers. Trapped ions have been identified as a favorable medium – trapped ion quantum computers perform operations on singular atoms with precisely aimed laser pulses calibrated to state transitions within the ions’ energy levels. Bulk free space optics are currently used for qubit manipulation, but the large amount of optical equipment required hinders scalability. Recent pushes to build higher bit systems have identified photonic integrated...

BPN751: Large-Scale Silicon Photonic MEMS Switch with Sub-Microsecond Response Time

Johannes Henriksson
Jianheng Luo
2022

We developed a new architecture suitable for building a large-scale optical switch with fast response time. We have demonstrated switches with a scale of 240x240 and speed of sub microsecond using our new architecture. The switch architecture consists of an optical crossbar network with MEMS-actuated couplers and is implemented on a silicon photonics platform. To our knowledge this is the largest monolithic switch, and the largest silicon photonic integrated circuit, reported to date. The passive matrix architecture of our switch is fundamentally more scalable than that of multistage...

Johannes Henriksson

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Ming C. Wu (Advisor)
Ph.D. 2022 (Anticiptated)

Johannes graduated from Lund University, Sweden, with a Masters degree in Engineering Physics which also included one year at UCLA as an exchange student. He has work experience from BorgWarner, ON Semiconductor and Lawrence Livermore National Laboratory and Apple. Johannes is currently pursuing his PhD degree in Electrical Engineering and Computer Science at UC Berkeley where he is working with Prof. Ming Wu on MEMS and silicon photonics.

BPN957: MEMS Switch Based Integrated FTIR

Jianheng Luo
Johannes Henriksson
2022

This project aims to develop integrated FTIR technology for material detection using MEMS-based photonic switch as building block. This implementation of integrated FTIR promises high resolution (1cm^-1) on small chip size ( 5mm x 5mm).

Project ended 08/22/2022

BPN974: Lidar-Camera Fusion for Autonomous Driving

Philip L. Jacobson
2022

Within the past few decades, the goal of fully-autonomous vehicles has moved from a thought experiment to a potential reality thanks to advances in machine intelligence. One of the key challenges to still be overcome is the building of robotic perception systems which can achieve performance on-par with or surpassing that of humans. Currently, most autonomous driving researchers rely on several different modalities for collecting visual information, namely lidar, radar, and cameras. Although relying on lidar for perception has the drawback of high cost, maturing lidar technology has opened...

Kyungmok Kwon

Alumni
Electrical Engineering and Computer Sciences
Professor Ming C. Wu (Advisor)
PostDoc 2021

Dr. Kyungmok Kwon graduated from KAIST, Korea, with a Ph.D degree in Electrical Engineering. His research area is silicon-photonics, nanophotonics, nanoengineering and nanomaterial. Kyungmok is currently a postdoctoral researcher in Electrical Engineering and Computer Science at UC Berkeley where he is working with Prof. Ming Wu on MEMS and silicon photonics.

Jianheng Luo

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Ming C. Wu (Advisor)
Ph.D. 2022 (Anticipated)

Jianheng Luo is currently working towards his Ph.D. degree at the University of California, Berkeley with Prof. Ming Wu. He received his B.S. degree in Engineering Physics from the University of California, Berkeley in 2017.

Sangyoon Han

Alumni
Electrical Engineering and Computer Sciences
Professor Ming C. Wu (Advisor)
Ph.D. 2016, PostDoc 2016

Sangyoon Han is an alumnus of BSAC and currently an assistant professor at DGIST, Korea. He received the B.S. degree in Electrical Engineering from the Seoul National University in 2010, and the Ph.D. degree in Electrical Engineering and Computer Sciences from the University of California, Berkeley in 2016. From 2016 to 2020, he was a postdoctoral researcher at the physics department, KAIST, Korea. His research interests include silicon photonics, non-linear optics, MEMS, heterogeneous integration, and LIDAR. He has authored and co-authored over 30 papers in leading technical journals and...