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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…

July 15, 2018

1.3 μm InAs quantum dot lasers on Si show a CW threshold current of 4.8 mA and extrapolated lifetimes of ten million hours at 35 °C and ~65,000 hours at 60 °C.

July 11, 2018

Intel has won SEMI’s 2018 Award for the Americas. SEMI honored the celebrated chipmaker for pioneering process and integration breakthroughs that enabled the first high-volume Integrated Silicon Photonics Transceiver. The award was presented…

June 21, 2018

This work reports on the ultra-low linewidth enhancement factor (aH-factor) of semiconductor quantum dot lasers epitaxially grown on silicon. Owing to the low density of threading dislocations and resultant high gain, an aH value of 0.13 that is…

April 25, 2018

Only a few decades ago, finding a particular channel on the radio or television meant dialing a knob by hand, making small tweaks and adjustments to hone in on the right signal. Of course, we now take such fine tuning for granted, simply pressing…

Events & Seminars

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…

Galan Moody
Research Scientist, National Institute of Standards and…
January 23, 2019, 10:00 am

Abstract: Quantum information science (QIS) technologies for computing, communications, sensing, and metrology rely on the ability to generate and detect non-classical information using ligh…

Publications

Y. Wan, D. Jung, D, Inoue, J. C. Norman, C. Shang…
March 26, 2019
L. Chang, A. Boes , P. Pintus , J. D. Peters, MJ…
March 15, 2019
A. Vega-Flick, D. Jung, S. Yue, J. E. Bowers, and…
March 11, 2019
J. C. Norman, D. Jung, Z. Zhang, Y. Wan, S. Liu,…
February 26, 2019
P. Pintus, D. Huang, P. A. Morton, Y. Shoji, T.…
January 31, 2019