October 24, 2019

We demonstrate the first tunable single wavelength quantum dot (QD) laser directly grown on Si. A simple, integrable architecture is implemented without involving re-growth steps or sub-wavelength…

September 27, 2019

A Quantum Leap
UC Santa Barbara is selected as the site of the nation’s first NSF-funded Quantum Foundry, a center for the development of materials and devices for quantum information-based technologies…

September 27, 2019

Pushing the Data Capacity Limit with Lasers on Silicon

September 27, 2019

Congrats to Yating and Justin on the publication of a chapter on Quantum Dot Microcavities in the new Elsevier book, "Future of Silicon Photonics", volume 101 of Semimetals:

September 26, 2019

 UC ranked #1 in the world in patents in 2018!

September 20, 2019

two papers from our group are selected as the top 10 cited articles on Integrated Optics published in 2018

June 7, 2019

In 2020, the laser will celebrate its 60th anniversary. Here Photonics Media presents a timeline of some of the more notable scientific accomplishments related to light amplification by stimulated emission of radiation (laser). An interactive…

June 6, 2019

Abstract—Silicon photonics offer a low-cost platform for large- scale RF system integration. Spur-free dynamic range (SFDR) for analog and RF photonic components is limited by electri- cal and optical characteristics of the p- and n- junction…

June 4, 2019

"The National Academy of Inventors and the Intellectual Property Owners Association have announced their seventh annual report on trends within academic patenting. The Top 100 Worldwide Universities Granted U.S. Utility Patents in 2018 has been…

May 29, 2019

We demonstrate a fully integrated extended distributed Bragg reflector (DBR) laser with ∼1 kHz linewidth and over 37 mW output power, as well as a ring-assisted DBR laser with less than 500 Hz linewidth. The extended DBR lasers are fabricated by…

May 16, 2019

Please email your CV and a cover letter to Professor John Bowers at bowers@ece.ucsb.edu and cc bowers-admin@ece.ucsb.edu. 

March 20, 2019

Sub-kHz linewidth Extended-DBR lasers heterogeneously integrated on silicon by D. Huang, M. A. Tran, J. Guo, J. Peters, T. Komljenovic, A. Malik, P. A. Morton, J. E. Bowers. 

We demonstrate single-mode E-DBR lasers with 1kHz linewidth and…

Events & Seminars

Dominik Auth, Stefan Breuer, John A. Paulson
Institute of Applied Physics, Technische Universität…
January 31, 2020, 10:00 am

We review advances in the timing stabilization of self mode-locked and passively mode-locked
frequency comb semiconductor lasers in the infrared spectral range. Prospects of pulse train timing and
amplitude stability control, intermode beat frequency or pulse repetition rate agility,…

Dr. Rajeev Ram
Department of Electrical Engineering & Computer Science…
January 28, 2020, 12:00 am

Nanoscale Foundries: Electronics, Photonics, Ionics, Fluidics

Dr. Rajeev Ram

 Department of Electrical Engineering & Computer Science, MIT


Modern silicon fabs routinely produce functional electrical components for a few dollars at part counts exceeding

Firooz Aflatouni
Skirkanich Assistant Professor, Department of Electrical…
May 23, 2019, 4:00 pm

Abstract: Integrated electronic-photonic co-design can profoundly impact both fields resulting in advances in several areas such as energy efficient communication, signal processing, imaging, and sensing. Examples of integrated electronic-photonic co-design may be categorized into two groups: (a)…


Y. Wan, C. Shang, J. Huang, Z. Xie, A. Jain, D.…
February 21, 2020
Y. Wan, S. Zhang, J. Norman, MJ Kennedy, W. He, Y…
February 5, 2020
B. Chen, Y. Wan, Z. Xie, J. Huang, C. Shang, J.…
January 8, 2020
Y. Wan, C. Shang, J. Norman, B. Shi, Q. Li, N…
January 6, 2020
Yating Wan, Sen Zhang, Justin Norman, MJ Kennedy…
October 24, 2019
Akhilesh Sanjay Prabhu Khope
September 27, 2019