December 12, 2019

The very best of Santa Barbara, filmed by Christopher Helkey, watch here.

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…

March 15, 2019

Abstract: Multi-spectral midwave-infrared (mid-IR) lasers are demonstrated by directly bonding quantum cascade epitaxial gain layers to silicon-on-insulator (SOI) waveguides with arrayed waveguide grating (AWG) multiplexers. Arrays of distributed…

March 15, 2019

In this contribution, we demonstrate the first integrated gallium arsenide (GaAs) ring resonator for second harmonic generation (SHG) on a GaAs-on-insulator platform. Such resonators exhibit high nonlinear optical coefficients, a strong optical…

Events & Seminars

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)…

Frédéric Grillot
Professor, Télécom ParisTech
February 28, 2019, 4:00 pm

ABSTRACT: The quantum cascade (QC) laser is a promising light source based on resonant tunneling and optical intersubband transitions between quantized conduction band states. In these semiconductor lasers, the principles of operation arise from the quantum engineering of electro…

Tara Drake
NRC postdoc fellow, National Institute of Standards and…
January 25, 2019, 10:00 am

The invention of optical-frequency combs has transformed the fields of precision metrology, spectroscopy, and electronic/photonic signal generation. Now, a new and incredibly promising platform for fre…


Yating Wan, Sen Zhang, Justin Norman, MJ Kennedy…
October 24, 2019
Akhilesh Sanjay Prabhu Khope
September 27, 2019
Yating Wan, Justin. C. Norman
September 20, 2019
Chen Shang, Yating Wan, Justin Norman, Noelle…
July 27, 2019
D. Huang, M. A. Tran, J. Guo, J. Peters, T.…
May 29, 2019
Y. Wan, D. Jung, D, Inoue, J. C. Norman, C. Shang…
March 26, 2019