The ORCA-Lab project offers students unparalleled opportunities to work in a cutting-edge research environment, blending theory and practical experience. Today, we spotlight Jelisaveta Aleksić, a dedicated student from the Department of Physical Electronics, who has made important contributions to the field of nanoelectronics and photonics through her work at ORCA-Lab.
Q: What are your interests and hobbies? How would you describe yourself informally? A: My name is Jelisaveta Aleksić, and I studied Nanoelectronics and Photonics at the Department of Physical Electronics. I’m passionate about reading and learning across various subjects like science, physics, mathematics, but also art, music, and healthy living. I enjoy running, playing the piano, skiing, and spending time outdoors with friends. Informally, I’d describe myself as an enthusiastic, creative person who loves giving my best in what interests me. I’m a good friend, always ready for a new adventure, travel, and discovering new cultures.
Q: Can you briefly describe your research? A: The title of my project is “The Realization of a Reconfigurable NAND/NOR Optical Circuit Based on Dual-Injection Synchronized Fabry-Pérot Laser Diode”. My research involved theoretical analysis of the laser diode and injection synchronization, both single and dual. I performed numerical simulations to test the system’s response when sending impulses in NAND and NOR logic. The main part of my work was the experimental realization of the NAND/NOR circuit, where reconfigurability was achieved by changing the slave current of the Fabry-Pérot diode. We confirmed the correct operation of both logics at 200 MHz and 500 MHz speeds.
Q: How did you learn about the laboratory, and what motivated you to choose this research? A: I learned about the lab through our excellent assistants and professors from the Department of Physical Electronics. I’ve always been interested in optics and physics, and over time, I met peers with similar interests. Working with them, along with the support from assistants and professors, motivated me to dive deeper into research. I chose this topic not only for my diploma work but also because I wanted to gain as much knowledge and experience as possible through projects and contribute to them.
Q: How did the lab work influence your final project? How would you assess your research success? A: Lab work had a huge impact on my final project. I applied the theoretical knowledge I gained while working with the equipment available in the lab and learned a lot from assistants, professors, and colleagues. I think the lab’s influence goes beyond the final project—it shaped my entire experience at the faculty, which will definitely benefit my future career. I worked on my project for about 6–7 months, with some breaks. I consider the project highly successful, especially on the experimental side, where we demonstrated the functionality of the optical circuit. I gave my best to work with my mentor and collaborators, and I hope the results will inspire future projects and creative ideas.
Q: How has lab work impacted your professional development? A: As I’ve mentioned, the lab work significantly contributed to my professional development. Theoretical knowledge is just the foundation, but when you see it in action—working with real systems and equipment—you truly understand how physical systems behave. It was an engaging, informative, and very valuable experience.
Q: Would you recommend working in the Optical Communications Lab to other students? A: Absolutely! It’s an incredible experience that allows students to work with fascinating components while being part of a dedicated and enthusiastic team. The lab’s assistants and professors go above and beyond to help younger students, offering their time and expertise. Students can expect a lot of interesting and hands-on work with cutting-edge equipment, all while being part of a team that’s passionate about progress and learning.
Q: What’s your message to future students? A: Follow your dreams and don’t let trends or money get in the way. If you love physics—especially photonics—keep exploring, reading, asking questions, and make the most of your time with your peers and older colleagues. Enjoy your studies, but also be proactive, as that’s the path to achieving your goals.
Q: Is there anything else you’d like to share that we haven’t asked? A: I’d like to say a huge thank you to everyone at the Optical Communications Lab. Even though I’m no longer in Serbia, I hope we’ll continue collaborating in the future!