Uğur Teğin
@utegin.bsky.social
Assist. Prof. at Koç Uni. Electrical & Electronics Engineering. Working on photonics. Postdoc @caltech.edu, PhD @EPFL, MS and BS @Bilkent
Greetings from San Francisco! It is good to be back at Photonics West.
We will be giving our talks on January 20th and 21st. You can find us in the “Photonic AI accelerators,” “Photonic Neural Network I & II,” and “Diffractive Optical Processors” sessions.
#PhotonicsWest
We will be giving our talks on January 20th and 21st. You can find us in the “Photonic AI accelerators,” “Photonic Neural Network I & II,” and “Diffractive Optical Processors” sessions.
#PhotonicsWest
January 19, 2026 at 12:26 AM
Greetings from San Francisco! It is good to be back at Photonics West.
We will be giving our talks on January 20th and 21st. You can find us in the “Photonic AI accelerators,” “Photonic Neural Network I & II,” and “Diffractive Optical Processors” sessions.
#PhotonicsWest
We will be giving our talks on January 20th and 21st. You can find us in the “Photonic AI accelerators,” “Photonic Neural Network I & II,” and “Diffractive Optical Processors” sessions.
#PhotonicsWest
New manuscript: "Self-optimizing multichannel optical computing" 🎉
Most optical AI wastes multichannel information. We don't.
Light does the computing. The system optimizes itself.
arXiv: arxiv.org/abs/2601.07574
Most optical AI wastes multichannel information. We don't.
Light does the computing. The system optimizes itself.
arXiv: arxiv.org/abs/2601.07574
Self-optimizing multichannel optical computing
Optical computing offers ultrafast, energy-efficient alternatives to conventional digital processors, yet most implementations remain confined to single-channel processing, severely underutilizing lig...
arxiv.org
January 13, 2026 at 6:14 AM
New manuscript: "Self-optimizing multichannel optical computing" 🎉
Most optical AI wastes multichannel information. We don't.
Light does the computing. The system optimizes itself.
arXiv: arxiv.org/abs/2601.07574
Most optical AI wastes multichannel information. We don't.
Light does the computing. The system optimizes itself.
arXiv: arxiv.org/abs/2601.07574
Next week, we are heading to San Francisco for @spie.org Photonics West to showcase our latest work.
With my grad students, we are attending to present 6 talks and 2 posters.
Check the attached schedule for times and room numbers in Moscone West.
Congratulations to my team!
With my grad students, we are attending to present 6 talks and 2 posters.
Check the attached schedule for times and room numbers in Moscone West.
Congratulations to my team!
January 11, 2026 at 8:40 AM
Next week, we are heading to San Francisco for @spie.org Photonics West to showcase our latest work.
With my grad students, we are attending to present 6 talks and 2 posters.
Check the attached schedule for times and room numbers in Moscone West.
Congratulations to my team!
With my grad students, we are attending to present 6 talks and 2 posters.
Check the attached schedule for times and room numbers in Moscone West.
Congratulations to my team!
New year, new manuscript 🎉
Our new manuscript introduces an optical spiking neural network that exploits rogue-wave statistics as a passive nonlinear activation mechanism for energy-efficient optical computing.
arXiv: arxiv.org/abs/2512.24983
Our new manuscript introduces an optical spiking neural network that exploits rogue-wave statistics as a passive nonlinear activation mechanism for energy-efficient optical computing.
arXiv: arxiv.org/abs/2512.24983
Optical Spiking Neural Networks via Rogue-Wave Statistics
Optical computing could reduce the energy cost of artificial intelligence by leveraging the parallelism and propagation speed of light. However, implementing nonlinear activation, essential for machin...
arxiv.org
January 1, 2026 at 11:00 AM
New year, new manuscript 🎉
Our new manuscript introduces an optical spiking neural network that exploits rogue-wave statistics as a passive nonlinear activation mechanism for energy-efficient optical computing.
arXiv: arxiv.org/abs/2512.24983
Our new manuscript introduces an optical spiking neural network that exploits rogue-wave statistics as a passive nonlinear activation mechanism for energy-efficient optical computing.
arXiv: arxiv.org/abs/2512.24983
Happy new year! Our current view of the campus
January 1, 2026 at 7:58 AM
Happy new year! Our current view of the campus
Excited to share our latest preprint “The role of modes in nonlinear fiber optical computing”.
We show that fiber optical computation does not use all supported modes but instead emerges in a low-dimensional, task-dependent modal subspace.
arxiv.org/abs/2512.10035
We show that fiber optical computation does not use all supported modes but instead emerges in a low-dimensional, task-dependent modal subspace.
arxiv.org/abs/2512.10035
The role of modes in nonlinear fiber optical computing
We investigate the nonlinear propagation of light in graded-index multimode fiber, utilizing it as an optical computing unit, and quantify how it employs waveguide modes to process information. Using ...
arxiv.org
December 12, 2025 at 3:26 AM
Excited to share our latest preprint “The role of modes in nonlinear fiber optical computing”.
We show that fiber optical computation does not use all supported modes but instead emerges in a low-dimensional, task-dependent modal subspace.
arxiv.org/abs/2512.10035
We show that fiber optical computation does not use all supported modes but instead emerges in a low-dimensional, task-dependent modal subspace.
arxiv.org/abs/2512.10035
Our new graduate students have joined the team, and we’ve refreshed our lab website with an updated group photo. Take a look: lpt.ku.edu.tr/people.html
November 23, 2025 at 7:32 PM
Our new graduate students have joined the team, and we’ve refreshed our lab website with an updated group photo. Take a look: lpt.ku.edu.tr/people.html
Exciting news! Our project, “Multiphoton Imaging System with Spatiotemporal Fiber Lasers for Real-Time Optical Biopsy,” has been selected as one of seven projects funded under the Turkish–Italian Bilateral Cooperation Programme (TÜBİTAK–MAECI).
tubitak.gov.tr/en/announcem...
tubitak.gov.tr/en/announcem...
2524 TÜBİTAK-Italian Ministry of Foreign Affairs and International Cooperation (MAECI) Bilateral Cooperation Programme Call Results Announced! | TÜBİTAK | Türkiye Bilimsel ve Teknolojik Araştırma Kuru...
T.C. Sanayi ve Teknoloji Bakanlığı'nın ilgili kuruluşudur.
tubitak.gov.tr
November 10, 2025 at 6:33 AM
Exciting news! Our project, “Multiphoton Imaging System with Spatiotemporal Fiber Lasers for Real-Time Optical Biopsy,” has been selected as one of seven projects funded under the Turkish–Italian Bilateral Cooperation Programme (TÜBİTAK–MAECI).
tubitak.gov.tr/en/announcem...
tubitak.gov.tr/en/announcem...
Greetings from Denver, CO! This year, I am attending Frontiers in Optics with my PhD student Bora Carpinlioglu. Both of us delivered our talks today. Now, we can enjoy the rest of the conference.
October 27, 2025 at 10:17 PM
Greetings from Denver, CO! This year, I am attending Frontiers in Optics with my PhD student Bora Carpinlioglu. Both of us delivered our talks today. Now, we can enjoy the rest of the conference.
Excited to share our latest preprint “Engineering Rogue Waves via Multimode Interactions in Integrated Waveguides” now on arXiv!
In this study, we show that rogue waves—rare extreme optical pulses—can be engineered via modal excitation in multimode Si₃N₄ waveguides.
arxiv.org/abs/2510.07082
In this study, we show that rogue waves—rare extreme optical pulses—can be engineered via modal excitation in multimode Si₃N₄ waveguides.
arxiv.org/abs/2510.07082
Engineering Rogue Waves via Multimode Interactions in Integrated Waveguides
We explore rogue wave formation in multimode silicon nitride (Si$_3$N$_4$) waveguides with multimode nonlinear Schrödinger equation-based simulations. Pure fundamental-mode excitation produces smooth ...
arxiv.org
October 20, 2025 at 1:59 PM
Excited to share our latest preprint “Engineering Rogue Waves via Multimode Interactions in Integrated Waveguides” now on arXiv!
In this study, we show that rogue waves—rare extreme optical pulses—can be engineered via modal excitation in multimode Si₃N₄ waveguides.
arxiv.org/abs/2510.07082
In this study, we show that rogue waves—rare extreme optical pulses—can be engineered via modal excitation in multimode Si₃N₄ waveguides.
arxiv.org/abs/2510.07082
Reposted by Uğur Teğin
I am recruiting a postdoc to work experimentally in my group @astonphotonics.bsky.social on electro-optic frequency combs for microscopy applications!
If you are interested please write me!
You find more details here 👇👇👇
jobs.aston.ac.uk/Vacancy.aspx...
If you are interested please write me!
You find more details here 👇👇👇
jobs.aston.ac.uk/Vacancy.aspx...
Job Vacancy at Aston University: Postdoctoral Research Associate
We are hiring a postdoctoral research associate at the Aston Institute of Photonic Technologies (AIPT), that will join the group of Dr. Auro Perego. You will perform experimental and numerical simulat...
jobs.aston.ac.uk
October 8, 2025 at 6:10 PM
I am recruiting a postdoc to work experimentally in my group @astonphotonics.bsky.social on electro-optic frequency combs for microscopy applications!
If you are interested please write me!
You find more details here 👇👇👇
jobs.aston.ac.uk/Vacancy.aspx...
If you are interested please write me!
You find more details here 👇👇👇
jobs.aston.ac.uk/Vacancy.aspx...
It’s not fancy, but it marks a special moment for us . We coupled light into our first in-house fabricated chip! Next time we will take fancy pictures with neon colors :)
October 7, 2025 at 3:37 PM
It’s not fancy, but it marks a special moment for us . We coupled light into our first in-house fabricated chip! Next time we will take fancy pictures with neon colors :)
On my way back to NYC, I visited Cornell and shared our recent studies with colleagues. I had great discussions with Frank Wise, Nicholas Rivera, and Peter McMahon, enjoyed inspiring lab tours, and appreciated the warm hospitality of the Wise group.
September 26, 2025 at 12:42 PM
On my way back to NYC, I visited Cornell and shared our recent studies with colleagues. I had great discussions with Frank Wise, Nicholas Rivera, and Peter McMahon, enjoyed inspiring lab tours, and appreciated the warm hospitality of the Wise group.
Had a great time visiting Corning and giving a talk! It was inspiring to meet brilliant scientists and see their cutting-edge production and scientific innovations firsthand.
September 25, 2025 at 12:34 AM
Had a great time visiting Corning and giving a talk! It was inspiring to meet brilliant scientists and see their cutting-edge production and scientific innovations firsthand.
Our recent preprint “Spatiotemporal Nonlinear Pulse Dynamics in Multimode Silicon Nitride Waveguides” now on arXiv!
Dive into the details here arxiv.org/abs/2508.18945
Dive into the details here arxiv.org/abs/2508.18945
Spatiotemporal Nonlinear Pulse Dynamics in Multimode Silicon Nitride Waveguides
We present an open-source multimode nonlinear Schrödinger equation-based simulation to investigate spatiotemporal nonlinear pulse propagation in thin-film silicon nitride (SiN) waveguides. Using this ...
arxiv.org
August 27, 2025 at 11:09 AM
Our recent preprint “Spatiotemporal Nonlinear Pulse Dynamics in Multimode Silicon Nitride Waveguides” now on arXiv!
Dive into the details here arxiv.org/abs/2508.18945
Dive into the details here arxiv.org/abs/2508.18945
Our new paper is out in Communications Physics of Nature Portfolio!
We present a genetically programmable optical random neural network, combining optical computing with adaptive control for efficient machine learning.
doi.org/10.1038/s420...
We present a genetically programmable optical random neural network, combining optical computing with adaptive control for efficient machine learning.
doi.org/10.1038/s420...
Genetically programmable optical random neural networks - Communications Physics
Optics offers highly parallelized and energy-efficient computations, making it suitable for answering the ever-increasing demands of artificial intelligence systems. Here, the authors demonstrate a pr...
doi.org
August 25, 2025 at 5:11 PM
Our new paper is out in Communications Physics of Nature Portfolio!
We present a genetically programmable optical random neural network, combining optical computing with adaptive control for efficient machine learning.
doi.org/10.1038/s420...
We present a genetically programmable optical random neural network, combining optical computing with adaptive control for efficient machine learning.
doi.org/10.1038/s420...
Good morning! Morning walk at 6:30
August 24, 2025 at 5:56 AM
Good morning! Morning walk at 6:30
We just published Fiber-D2NN in Optics Letters! This optical computer works by tuning linear mode coupling inside multimode fiber. It enables simple-readout or all-optical inference and reaches competitive accuracy on BreastMNIST, FashionMNIST & RSSCN7. doi.org/10.1364/OL.5...
Fiber-based diffractive deep neural network
Optical computing has reemerged as a promising alternative computing paradigm for providing energy-efficient information processing in the age of artificial intelligence. Among various photonic neural...
doi.org
August 19, 2025 at 7:56 PM
We just published Fiber-D2NN in Optics Letters! This optical computer works by tuning linear mode coupling inside multimode fiber. It enables simple-readout or all-optical inference and reaches competitive accuracy on BreastMNIST, FashionMNIST & RSSCN7. doi.org/10.1364/OL.5...
We have received a TÜBİTAK 1001 grant to elevate our AI for Optics research to the field of Quantum.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
August 19, 2025 at 4:43 PM
We have received a TÜBİTAK 1001 grant to elevate our AI for Optics research to the field of Quantum.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
We have received a TÜBİTAK 1001 grant to elevate our AI for Optics research to the field of Quantum.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
August 19, 2025 at 4:43 PM
We have received a TÜBİTAK 1001 grant to elevate our AI for Optics research to the field of Quantum.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
With our “Unscrambling quantum light in scattering media with artificial neural networks” project, we will teach neural networks to “see”quantum light through messy environments.
Reposted by Uğur Teğin
Very sad to hear that the great soliton pioneer Akira Hasegawa has died on June 22. His work truly was revolutionary in so many ways and impacted so many different fields. An obituary from Columbia is below. www.apam.columbia.edu/memoriam-pro...
In Memoriam: Prof. Akira Hasegawa (1934-2025)
Dr. Akira Hasegawa, former adjunct professor at Columbia’s Department of Applied Physics and Applied Mathematics, has passed away.
www.apam.columbia.edu
August 8, 2025 at 8:26 PM
Very sad to hear that the great soliton pioneer Akira Hasegawa has died on June 22. His work truly was revolutionary in so many ways and impacted so many different fields. An obituary from Columbia is below. www.apam.columbia.edu/memoriam-pro...
After SPIE conference at San Diego, we visited UCLA and Caltech. We had the chance to get lab tours from Prof. Aydogan Ozcan and Prof. Alireza Marandi. It was truly inspiring to see their groundbreaking research and enjoy such generous hospitality!
August 10, 2025 at 8:31 AM
After SPIE conference at San Diego, we visited UCLA and Caltech. We had the chance to get lab tours from Prof. Aydogan Ozcan and Prof. Alireza Marandi. It was truly inspiring to see their groundbreaking research and enjoy such generous hospitality!
Conference selfie with my students
#SPIEOpticsPhotonics
#SPIEOpticsPhotonics
August 4, 2025 at 11:17 PM
Conference selfie with my students
#SPIEOpticsPhotonics
#SPIEOpticsPhotonics
Greetings from San Diego!
It was a pleasure to present my invited talk at the Emerging Topics in AI conference, SPIE Optics + Photonics this week. I shared our recent optical computing architectures.
@spie.org #SpieOpticsPhotonics
It was a pleasure to present my invited talk at the Emerging Topics in AI conference, SPIE Optics + Photonics this week. I shared our recent optical computing architectures.
@spie.org #SpieOpticsPhotonics
August 3, 2025 at 11:17 PM
Greetings from San Diego!
It was a pleasure to present my invited talk at the Emerging Topics in AI conference, SPIE Optics + Photonics this week. I shared our recent optical computing architectures.
@spie.org #SpieOpticsPhotonics
It was a pleasure to present my invited talk at the Emerging Topics in AI conference, SPIE Optics + Photonics this week. I shared our recent optical computing architectures.
@spie.org #SpieOpticsPhotonics
Next week at ETAI conference of @spie.org Optics + Photonics, our Lab. of Photonic Techs will be in San Diego with 6 talks and 1 posters. We are excited to share our recent works on Optics for AI and AI for optics!
August 2, 2025 at 2:25 AM
Next week at ETAI conference of @spie.org Optics + Photonics, our Lab. of Photonic Techs will be in San Diego with 6 talks and 1 posters. We are excited to share our recent works on Optics for AI and AI for optics!