Building Quantum Connections

The Continuous Spectrum

Building Quantum Connections

First Encounter

Juan Rafael was first introduced to optics through a career-defining mentorship. As an undergraduate at Universidad de Los Andes in Bogotá, Colombia, he was allured by the mystery of light but his university had limited optics faculty when he first arrived in 2011. During his second year, the university hired Dr. Alejandra Valencia, the person who would become his most influential mentor. Upon her arrival, she set up a quantum optics lab—the first of its kind in Colombia. “I would say that experience completely formed me, and completely transformed me in the way I saw science,” he remarks fondly. “And many of the things I learned back then, I still keep them, and I still hold them with my students.”  

Linked from the Start

In 2013, he joined the newly formed Optica student chapter known as GOA (Grupo de Óptica de los Andes), and in 2014 he officially joined Optica as an individual member. The years Juan Rafael spent in this undergraduate chapter helped him form connections, build community, and participate in exciting, hands-on demonstrations to further his enthusiasm for optics. This period culminated at the 2016 Optica Latin America Optics and Photonics Conference (LAOP) in his hometown of Medellín, Colombia, where he delivered his first oral presentation. Marking the 10th anniversary of that milestone, this year’s conference returns to his undergraduate alma mater—where he now serves as chair of the Quantum Optics committee!

Another defining moment came when he attended the Siegman International School on Lasers in 2022. Though he was accepted into the program in 2020, the pandemic forced his initial experience to be virtual, making the full, in-person program two years later all the more exciting. As he recalled, “After everything that had happened with the pandemic, getting to see so many collaborators and students working on exciting things was like a... defrosting.” For Juan Rafael, it wasn't just a return to in-person science—it was a true homecoming to the community that had nurtured his career from the start.

An Ambassadorship in Review

Inspired by the scientists in his field and eager to give back to his community, applying to become an Optica Ambassador was a natural next step. As a 2026 Optica Ambassador, he reflects on an impactful year spent connecting with students around the globe. At the recent Student Leadership Conference at FiO LS 2026 in Rochester, New York, he embraced his ambassadorial duties by hosting a personal development workshop titled “The Art of Saying Yes, and When to Say No”. The workshop aimed to teach students how to make the most of exciting opportunities in optics and overcome self-doubt. Above all, serving as an Optica Ambassador has given him the visibility to speak and engage in outreach with students and broader audiences through science communication.

"Getting to work with students, getting to see the perspectives that they have, the great ideas that they bring—it’s one of the things that motivates me the most.'"

Juan Rafael Álvarez

Engaging Minds and Qubits

Juan loves teaching as much as research. As an assistant professor in photonics at Télécom Paris in Palaiseau, France, he’s energized through his interactions with students, and mentorship and guidance are his primary motivators. In addition to teaching, he is focusing his research building on quantum networks to connect various entities through quantum channels—a culmination of his master's work in optical communications and his PhD research on atom-light interactions. While he describes the field as fast-paced and highly competitive, that urgency is precisely what attracts him. The pressure to continually innovate fosters a collaborative, highly creative environment in which he thrives.