Ming C. Wu (Advisor)

Research Advised by Professor Ming C. Wu

BSAC's Best: Fall 2019 Winners Announced

September 19, 2019

BSAC would like to thank the 102 researchers who presented their research during BSAC's Fall 2019 Research Review, September 18-19.

BSAC Industrial Members voted for their favorite oral presentations and posters. Please join us in congratulating the winners of the Fall 2019 Best of BSAC honors!

Jean-Etienne Tremblay

Best Paper...

Si Photonic MEMS Switches

Johannes Henriksson
Fall 2021 BSAC Research Review Presentation View Slides View Presentation

BPN721: FMCW LiDAR for Distance and Velocity Detection with Large Range and High Resolution

Xiaosheng Zhang
Kyungmok Kwon

3D imaging sensors have applications that span several industries and markets, from industry metrology, robotic control to autonomous vehicles. Frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) systems provide high-resolution anti-interference distance and velocity measurements without fast electronics or high optical power but typically require expensive narrow-linewidth lasers with complex feedback circuits. Instead, we report on linearizing the laser chirp by using iterative learning pre-distortion of the laser drive waveform, thus reducing the need for...

BPN869: Efficient Waveguide-Coupling of Electrically Injected Optical Antenna-LED

Nicolas M. Andrade

Optical interconnects require fast and efficient electrically-injected nanoscale light sources that can be coupled efficiently to a low-loss photonic waveguide. The spontaneous emission rate can be increased by coupling the active region of a nanoscale emitter to an optical antenna, which would allow for modulation rates greater than 50 GHz. The aim of this project is to demonstrate high waveguide-coupled external quantum efficiency of an optical antenna to a single mode InP waveguide.

Project ended: 05/01/2021

SIlicon Photonic Devices for Optoelectronic Integrated Circuits

Jason Tien
Ming C. Wu
Constance Chang-Hasnain
Xiang Zhang

Electronic and photonic integrated circuits use optics to overcome bottlenecks of microelectronics in bandwidth and power consumption. Silicon photonic devices such as optical modulators, filters, switches, and photodetectors have being developed for integration with electronics based on existing complementary metal-oxide-semiconductor (CMOS) circuits. An important building block of photonic devices is the optical microresonator.

On-chip whispering-gallery-mode optical resonators such as microdisks, microtoroids, and microrings have very small footprint, and thus...

Strong Optical Injection Locking of Edge-Emitting Lasers and Its Applications

Hyuk-Kee Sung
Ming C. Wu
Constance Chang-Hasnain
Costas P. Grigoropoulos

Semiconductor lasers are essential components that enable high-speed long-haul communication and have been widely used for various applications in photonics technology. Semiconductor lasers under optical injection locking exhibit superior performance over free-running lasers and provide useful applications not achievable through the free-running lasers. The performance of injection-locked lasers has been found to be significantly improved with stronger injection.

In this dissertation, the characteristics and applications of semiconductor lasers under strong...

Engineering Optical Antenna for Efficient Local Field Enhancement

Tae Joon Seok
Ming C. Wu
Eli Yablonovich
Luke P. Lee

Optical antennas have been widely used for variety of applications such as sensitive photodetection, efficient light emission, high-resolution imaging, heat-assisted magnetic recording, and surface-enhanced Raman spectroscopy (SERS) because they can capture and focus propagating electromagnetic energy into subdiffraction-limited areas and vice versa. However, widespread application of optical antennas has been limited due to lack of appropriate methods for uniform and large area fabrication of antennas, as well as difficulty in achieving an efficient design with small mode volume (gap...

High-Speed Modulation of Optical Injection-Locked Semiconductor Lasers

Erwin Lau
Ming C. Wu
Constance Chang-Hasnain
Xiang Zhang
Semiconductor lasers are an integral part of high-speed telecommunications. The push for higher modulation frequencies, thereby allowing greater data rates, has motivated the scientific community for several decades. However, the maximum speed of directly-modulated semiconductor lasers has plateaued as the field reaches a mature state. Recently, optical injection locking has been proven to enhance the bandwidth and resonance frequency of directly...

Biomimetic, Polymeric Transistor-Based Biosensor Technology

Jim Cheng
Albert P. Pisano
Ming C. Wu
Liwei Lin

The goal of this research is the creation of robust, flexible, polymer sensors and circuits fabricated partially from the low cost biopolymer, chitosan, the deacetylated form of chitin which is the second most abundant polyssacharide in nature. Chitin is found in crustaceans, insects, bacteria and fungi. The sensors will detect diatomic gases and DNA to more complex macro molecules (e.g. exotoxins) in a fluidic or dry environment. Polymer-nanoparticle (e.g. Ge) hybrid films allow for development of robust polymer thin-film transistors and, with optimization of the hybrid film,...

Jr-Hung Tsai

Electrical Engineering and Computer Sciences
Professor Ming C. Wu (Advisor)
M.S. 2001