Alexander Denisov is currently a Research Fellow at the Dianov Fiber Optics Research Center of the Russian Academy of Sciences, a division of the Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia. He graduated from the Moscow Institute of Physics and Technology in 1975, Department of Physical and Quantum Electronics, with a degree in Automation and Electronics as a Physics Engineer. He received the Ph.D. degree in laser physics from the GPI RAS in 2017. He is the author of five patents and has published more than 50 scientific papers. His past and current research interests include a wide range of topics on microstructured optical fibers, from the technology of their fabrication to computer-aided design and modeling of their properties by the finite element method.