• 1360 Citations
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Personal profile


"Photonic integrated circuits are critical enablers for the modern internet and will enable a host of low-energy, high-speed, high-precision solutions for imaging, sensing, metrology and beyond."

Research profile

Kevin Williams is a Full Professor and Chair of the Photonic Integration research group at Eindhoven University of Technology (TU/e). His key fields of expertise include photonic integrated circuits, semiconductor lasers and their application in communications and sensing. Kevin’s research group explores the scaling properties of photonic circuits, enabling faster and more energy-efficient components and circuits.

The group builds on its know-how in active-passive monolithic InP integration, creating circuits with lasers, amplifiers, energy-efficient quantum well modulators, detectors, power splitters, filters and more all on the same chip. This is addressed within three main themes: Generic integration – a methodology for enabling many different circuits using the same platform technology and an important vehicle for researching and validating the latest photonic devices and processes.  Heterogeneous and hybrid integration – the technologies for combining and co-designing photonic components and circuits with Silicon Electronics and dielectric materials, Integrated nano-photonics – using InP membranes on Silicon for the miniaturization of components and the leveraging of sub-wavelength photonic structures in circuits.  Kevin teaches courses in design, electronics and photonics.

Academic background

Kevin Williams graduated in Electronic Engineering from the University of Sheffield and received his PhD from the School of Physics at the University of Bath in 1995.  He subsequently moved to the University of Bristol where he was awarded a Royal Society university research fellowship to study high speed and high power semiconductor lasers. In 2001, he moved to the University of Cambridge where he was also appointed a Fellow and lecturer at Churchill College Cambridge. He moved to the Electro-optic Communications group at TU/e in 2006 after receiving an EC Marie Curie Chair award. In 2011, he received a Vici award from the Dutch NWO to perform research into large-scale high-performance photonic integrated circuits.

He is presently leading the Photonic Integration group at the Institute of Photonic Integration (formerly known as the COBRA research institute). He has recently chaired the European Conference on Integrated Optics 2017 and serves as the Primary Guest Editor for the JSTQE special issue on InP integration photonics in 2018.

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Projects 2015 2019

AUTOALIGN: Electronically aligned optical-fiber-arrays

Eijkemans, C., Williams, K. A., Cardarelli, S., van Goor, A., van Goor, A., van Mil, J., van Mil, J. & Hegh, L.


Project: Research direct

Research Output 2002 2019

3 Downloads (Pure)

1.3 Integration of photonics and electronics

Smit, M., Williams, K. & van der Tol, J., 6 Mar 2019, 2019 IEEE International Solid-State Circuits Conference, ISSCC 2019. Piscataway: Institute of Electrical and Electronics Engineers, p. 29-34 6 p. 8662321

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Electronic equipment
Indium phosphide
Light amplifiers
1 Downloads (Pure)

112 Gb/s PAM-4 transmission over 1.5 km with an EAM in generic integration platform

Trajkovic, M., Benyahya, K., Simonneau, C., Blache, F., Debregeas, H., Provost, J. G., Williams, K. A. & Leijtens, X. J. M., 1 Jul 2019, OECC/PSC 2019 - 24th OptoElectronics and Communications Conference/International Conference Photonics in Switching and Computing 2019. Piscataway: Institute of Electrical and Electronics Engineers, 3 p. 8817746

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

pulse amplitude modulation
Pulse amplitude modulation

36 Gb/s operation of a BiCMOS driver and InP EAM using foundry platforms

Trajkovic, M., Zhang, X., Blache, F., Mekhazni, K., Matters-Kammerer, M. K., Debregeas, H., Leijtens, X. & Williams, K., 26 Sep 2019. 3 p.

Research output: Contribution to conferencePaperAcademic

Open Access
direct current
7 Downloads (Pure)

A 6 x 30 Gb/s tunable transmitter PIC with low RF crosstalk from an open-access InP foundry

Yao, W., Smalbrugge, B., Smit, M., Williams, K. & Wale, M., 1 Sep 2019, In : IEEE Journal of Selected Topics in Quantum Electronics. 25, 5, 10 p., 6100510.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
Indium phosphide
Laser tuning
Bragg gratings

Application of optical proximity correction for 193 nm deep UV enabled InP photonic integrated circuits

Bolk, J., Ambrosius, H., Latkowski, S., Unal, N., Ritter, D. & Williams, K., 25 Apr 2019, p. 1-3. 3 p.

Research output: Contribution to conferencePosterAcademic

integrated circuits


NWO Vici Award : Ultrafast optical processor chips

Kevin Williams (Recipient), 2010

Prize: NWOViciScientific

central processing units
computer networks

Royal Society University Fellowship

Kevin Williams (Recipient), 1996

Prize: OtherFellowships & membershipsScientific

Activities 2005 2018

  • 1 Membership of committee
  • 1 Contributed talk

Feedback-insensitive Semiconductor Laser

Daan Lenstra (Speaker), T.T.M. van Schaijk (Member), E.A.J.M. Bente (Member), K.A. Williams (Member)
7 Mar 2018

Activity: Talk or presentation typesContributed talkScientific


Cordis Europe (External organisation)

Kevin Williams (Member)

Activity: Membership typesMembership of committeeScientific


Circuit analysis

1/09/15 → …



1/09/12 → …


Design methods for ICT systems

1/09/02 → …


Design methods for ICT systems

1/09/18 → …


Press / Media

This Week In XR: PTC Acquires Onshape, Snap Intros 3D Painting

Kevin A. Williams


1 item of Media coverage

Press/Media: Expert Comment

Dr jinks ennis tx

Kevin A. Williams


1 item of Media coverage

Press/Media: Expert Comment

VR Pop-up’s Enter Retail-tainment

Kevin A. Williams


1 item of Media coverage

Press/Media: Expert Comment

New Book Explores Fifteen Centuries of Writing in Wales

Kevin Williams


1 item of Media coverage

Press/Media: Expert Comment

Student theses

Characterization and optimization of photodetectors in generic intergation platform

Author: den Haan, E., 30 Apr 2015

Supervisor: Williams, K. (Supervisor 1), Leijtens, X. (Supervisor 2) & Pustakhod, D. (Supervisor 2)

Student thesis: Master

Study and modeling of DBR lasers with suppressed mode hopping

Author: Luo, X., 30 Jun 2016

Supervisor: Williams, K. (Supervisor 1)

Student thesis: Master