Building the next generation of optical transmitters

In today's world, where we are constantly sharing and receiving huge amounts of data, the technology that helps us connect and communicate is evolving rapidly. As we transition from 5G to the even faster 6G mobile networks, there's a growing need for better tools that can handle this explosion of digital information. For his PhD research Gleb Nazarikov delved into this challenge, focusing on improving the devices known as optical transmitters, which are crucial for fast and efficient data transmission. These devices are like the heart of our internet and mobile networks, pumping data at incredible speeds. However, as we demand more from them, such as faster speeds and more reliable connections, they need to be upgraded.

Nazarikov explored three key areas in his research:

Enhancing Optical Transmitters: he looked at ways to make these transmitters work better, particularly for generating high-quality radio frequency signals. This is like fine-tuning an instrument to make sure it plays the perfect note. By using a technique called optical injection locking, we can ensure these transmitters send data more cleanly and efficiently.

Improving Short-Distance Communication: this part of the research aimed at making communications over short distances, like within data centers or between nearby buildings, more efficient. By applying optical injection locking, he demonstrated that we could double the amount of data transmitted without needing overly complicated technology. This is akin to packing more information into the same space, making it more efficient and cost-effective.

Advancing Secure Communications: finally, he explored how these improved transmitters could be used in quantum key distribution systems, which are vital for secure communications. This is like creating a super-secure line for transmitting sensitive information, ensuring that it can’t be easily intercepted or hacked.

Not just about speed

Overall, Nazarikov’s research contributes to building the next generation of optical transmitters. These advancements are not just about speed; they're also about making our communication systems more reliable, secure, and efficient, which is increasingly important in our data-driven world. This work paves the way for better internet connections, faster data centers, and more secure communication channels, all of which are essential as we step into the future of digital communication.

Title of PhD thesis: Optical Injection Locking for Enhanced Performance of Optical Communication Systems. Supervisors: Prof. Idelfonso Tafur Monroy, and Dr. Simon Rommel.