Darko Zibar (Denmark), Nenad Kralj (Croatia)

Toni Aaltonen (Finland), Ticijana Ban (Croatia), Borko Baraban (Croatia), Bruno Blašković (Croatia), Hrvoje Buljan (Croatia), Domenico Caputo (Italy), Vedran Dakić (Croatia), Michele de Santis (Italy), Pedro Faria (Portugal), Jonas Junker (Denmark), Tihomir Knežević (Croatia), Petar Kolar (Croatia), Robert Kudelić (Croatia), Ivica Lukić (Croatia), Danilo Marić (Italy), Tomislav Matić (Croatia), Lucia Načinović Prskalo (Croatia), Norman Nelufule (South Africa), Kerim Obarčanin (Sweden), Ana Oprescu (Netherlands), Tomasz Pełech-Pilichowski (Poland), Justin M. Pelletier (United States), Ayodele Periola (South Africa), Ioan Ștefan Sacală (Romania), Zvonimir Šipuš (Croatia), António Teixeira (Portugal), Benny Thörnberg (Sweden)

The OPEL Conference provides an international platform for the dissemination of research and technological innovation in the fields of optoelectronics, photonics, quantum optics, and optical computing. The conference welcomes original research papers, case studies, and review contributions addressing theoretical foundations, device design and fabrication, modeling and simulation, system-level development, and applied implementations.

1. Optoelectronics and Semiconductor Devices
• Semiconductor materials and device physics (III–V, II–VI, Si, SiGe, InP, GaAs, GaN, perovskites)
• Light emission and detection principles — LEDs, laser diodes, photodiodes, avalanche photodiodes (APD), single-photon avalanche diodes (SPAD)
• High-speed modulators, drivers, and transimpedance amplifiers (TIA)
• High-frequency optoelectronic circuits (RF photonics, microwave photonics)

2. Integrated Photonics 
• Photonic integrated circuits (PICs): design, fabrication, and characterization
• Silicon-on-insulator (SOI), silicon nitride, InP, GaAs, and hybrid material platforms
• Waveguides, couplers, splitters, interferometers, and ring resonators
• Polarization control, dispersion engineering, and mode coupling
• 3D integration and co-packaged optics (CPO)
• Heterogeneous integration with CMOS electronics
• Optical interconnects for data centers and HPC systems

3. Nonlinear, Ultrafast, and High-Field Optics
• Nonlinear optical processes
• Supercontinuum generation, pulse compression, and ultrashort pulse dynamics
• Attosecond and femtosecond optics; ultrafast light–matter interactions
• Ultrafast spectroscopy and pump–probe techniques
• Laser filamentation, solitons, and light bullets
• High-intensity laser–plasma interactions
• Temporal, spatial, and spectral pulse shaping

4. Quantum Optics and Quantum Photonics
• Generation and detection of single and entangled photons
• Quantum secure communication
• Quantum memories, repeaters, and synchronization
• Quantum light sources: heralded, deterministic, and integrated sources
• Quantum imaging and ghost imaging

5. Optical Computing and Neuromorphic Photonics
• Optical and photonic computing architectures (digital, analog, hybrid)
• Optical accelerators for artificial intelligence and machine learning
• Coherent optical logic and photonic memory devices
• Free-space and integrated optical interconnects
• Optical FPGA and reconfigurable photonic hardware
• Optical signal processing and photonic DSP

6. Biophotonics, Optical Sensing, and Imaging
• Optical coherence tomography (OCT), photoacoustic and Raman imaging
• Fluorescence and multiphoton microscopy
• Optical biosensors and lab-on-chip photonics
• Spectroscopic techniques for chemical and biological detection
• Fiber-optic sensors and distributed sensing systems
• Terahertz imaging and spectroscopy
• Biophotonic instrumentation and data analytics

7. Systems, Networks, and Applications
• Optical communications (fiber, free-space, inter-satellite)
• High-speed coherent transceivers and advanced modulation formats
• Optical switching, multiplexing, and routing systems
• Photonic systems for sensing, metrology, and control
• Space optics and satellite optical links
• Optical instrumentation in scientific and industrial applications
• Photonic microwave systems and radio-over-fiber (RoF)
• Optoelectronic and photonic systems for Industry 5.0
• AI-driven photonic systems and self-calibrating instruments
 

The official language is English.

Rok za dostavu sažetaka: 15. prosinac 2025
Rok za dostavu radova: 2. veljača 2026
Rok za konačnu recenziju: 16. ožujak 2026

Registration / Fees:

The student discount doesn't apply to PhD students.

NOTE FOR AUTHORS: In order to have your paper published, it is required that you pay at least one registration fee for each paper. Authors of 2 or more papers are entitled to a 10% discount.

Darko Zibar
Technical University of Denmark
Department of Electrical and Photonics Engineering
Orsteds Plads, Building 343, Room 124
2800 Kgs. Lyngby, Denmark

e-mail: dazi@dtu.dk


Nenad Kralj
University of Rijeka
Faculty of Physics
Radmile Matejčić 2
HR-51000 Rijeka, Croatia

e-mail: nenad.kralj@phy.uniri.hr 

 

The best papers will get a special award.
Accepted papers will be published in the ISSN registered conference proceedings. 

Opatija is the leading seaside resort of the Eastern Adriatic and one of the most famous tourist destinations on the Mediterranean. With its aristocratic architecture and style, Opatija has been attracting artists, kings, politicians, scientists, sportsmen, as well as business people, bankers and managers for more than 180 years.

The tourist offer in Opatija includes a vast number of hotels, excellent restaurants, entertainment venues, art festivals, superb modern and classical music concerts, beaches and swimming pools – this city satisfies all wishes and demands.

Opatija, the Queen of the Adriatic, is also one of the most prominent congress cities in the Mediterranean, particularly important for its ICT conventions, one of which is MIPRO, which has been held in Opatija since 1979, and attracts more than a thousand participants from over forty countries. These conventions promote Opatija as one of the most desirable technological, business, educational and scientific centers in South-eastern Europe and the European Union in general.

For more details, please visit www.opatija.hr and visitopatija.com.