As 2022 draws close to the end, the group organized a potluck dinner this week to celebrate the coming of the Christmas break. We shared Dutch, German, Pakistani, Chinese, and Indonesian food at the party, and all of them are amazingly delicious!
2022 has been a big year for the group. We have gone through ups and downs together (mostly up :-). Merry Christmas and happy new year everyone! Wish all of us can continue the success in 2023!
We are excited to announce that our new paper Ultrahigh Dynamic Range and Low Noise Figure Programmable Integrated Microwave Photonic Filter has been published in Nature Communications.
In this work, we demonstrate reconfigurable filter functions with record-low noise figure and a RF notch filter with ultra-high dynamic range. We achieve this unique feature using versatile complex spectrum tailoring enabled by an all integrated modulation transformer and a double injection ring resonator as a multi-function optical filtering component. Our work breaks the conventional and fragmented approach of integration, functionality and performance that currently prevents the adoption of integrated MWP systems in real applications.
This publication is another achievement for the group in a fruitful 2022. Congrats Okky, Gaojian and the team for all the heroic efforts!
This post also appears at the front page of the University of Twente.
We are super excited that Okky Daulay earned his Ph.D. Cum Laude on December 14th, 2022.
Okky spends four years in our group and has always been an excellent experimentalist, an ambitious colleague, and a dependable teammate.
Thank you for your dedication, Okky! Congratulations and wish you all the best!
This Tuesday, Prof. Radan Slavik from University of Southampton, United Kingdom gave us a colloquium on Microwave photonics using hollow core optical fibres. Thank you Radan for this impressive talk!
We are excited to announce that our new paper Guided-acoustic stimulated Brillouin scattering in silicon nitride photonic circuits has been published in Science Advances.
In this work, we use the symmetric double-stripe silicon nitride waveguide from LioniX to guide both the photon and phonon, showing the possibility to integrate stimulated Brillouin scattering in large circuits. This breakthrough will potentially be integrated with other emerging technologies such as tunable lasers, frequency combs, and programmable photonic circuits, and giving them a part in the future development of fields ranging from telecommunications to quantum computing.
This publication is a great achievement for Roel, and of course, also for the whole team. Congrats all!
This news also appears at the front page of the University of Twente website.
Recently, David has been appointed as a full professor of the brand-new chair Nonlinear Nanophotonics (NLNP). From now on, the NLNP will run as an independent research group at the University of Twente.
We are excited that Steven’s paper has been selected for an oral presentation at ECOC 2022, Basel, Switzerland. The paper is titled, “Integrated Microwave Photonic Phase Shifter with Ultrahigh Dynamic Range”.
Gaojian has won a young talent award in the flash report competition at the Seventh Chinese Symposium on Microwave Photonics Technology and Applications. His report is about On-chip linearization methods for MWP system. Congratulations Gaojian!
Three very brilliant students graduated from our group recently!
First, on July 8th Jasper van den Hoogen defended his MSc thesis titled Brillouin dynamic gratings in a silicon nitride waveguide, under the supervision of Roel and Steven.
On July 11th, Sam Rappange defended his BSc thesis titled Programmable double injection coupled ring resonators for microwave photonic signal processing under the supervision of Okky.
Finally, on July 12th Lou Kanger defended his MSc thesis titled Generation of Kerr frequency combs for microwave photonics under the supervision of Yvan and Okky.
After the defenses, all three students received presents for their great work. The whole group also had lunch together to celebrate graduations and the coming of summer holidays.
We are excited that two papers in our group have been accepted for oral presentations at CLEO 2022, San Jose, California, USA. They are:
Nonlinear Nanophotonics (NLNP) 