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…
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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…
March 12, 2019
A new invited review paper on heterogeneous integration of III-V semiconductor photonics combined with silicon foundry technology has just been published in IEEE Journal of Selected Topics in Quantum Electronics.
"Heterogeneous…
February 12, 2019
Here we demonstrate an 8x4 multi-wavelength selective ring resonator based crossbar switch matrix implemented in a 220-nm silicon photonics foundry for interconnecting electronic packet switches in scalable data centers. This switch design can…
January 25, 2019
Low-cost, small-footprint, highly efficient, and mass-producible on-chip wavelength-division-multiplexing (WDM) light sources are key components in future silicon electronic and photonic integrated circuits (EPICs), which can fulfill the rapidly…
January 24, 2019
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 feedback…
August 9, 2018
Optical isolators and circulators are extremely valuable components to have in photonic integrated circuits, but their integration with lasers poses significant design and fabrication challenges. These challenges largely stem from the…
August 3, 2018
We present a brief overview of the various leading platforms for photonic integration. Subsequently, we consider the possibility of a photonic integrated circuit platform utilizing epitaxially grown III–V material on silicon—without the need for…
July 26, 2018
Microring lasers feature ultralow thresholds and inherent wavelength-division multiplexing functionalities, offering an attractive approach to miniaturizing photonics in a compact area. Here, we present static and dynamic properties of microring…
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…
