Paper 13344-4
Paper 13344-4
Narrow band volume Bragg gratings with enhanced side-lobe suppression for quantum optics
27 January 2025 • 9:50 AM - 10:10 AM PST | Moscone South, Room 206 (Level 2)
Abstract
Narrowband spectral filters, based on volume Bragg gratings (VBGs) in photo-thermo-refractive glass, were recently deployed in a wide variety of applications. This material allows recording of VBGs in the visible and near IR spectral regions with high efficiency, narrow bandwidth, high suppression, and large dispersion. Recent advances in VBG technology enabled fabrication of various holographic components well suited for quantum optics applications such as single photon detection, atomic clocks, quantum computing and networks. VBG-based diffractive elements are used for beam combining, signal separation, pump suppression, and as dispersive elements. In this paper we demonstrate manufacturing of high efficiency (>90%) reflecting VBG filters with enhanced suppression of side bands. Such elements provide suppression of background or pump by more than 25 dB for all spectral components shifted from the signal by 70 GHz or higher.
Presenter
OptiGrate – IPG Photonics (United States)
In 1997 Vadim Smirnov joined Dr. Glebov’s research group at CREOL, where the technology of photo-thermo-refractive (PTR) glass was developed. He received Ms. in Optics at School of Optics/CREOL University of Central Florida in 2000. He is co-founder of OptiGrate Corp. and since 2003 holds position of the Director of Holography and Diffractive Optics there. He was appointed to a position of Chief Technology Officer in 2010. In 2017 OptiGrate Corp was acquired by IPG Photonics as a key supplier of VBGs. Nowadays he is holding CTO position at subsidiary of IPG Photonics – OptiGrate.
Vadim is coauthor of more than 100 presentations and publications and seven U.S. patents on PTR glass technology.
His research activities include design, fabrication and development of volume diffractive gratings and holograms, nonlinear phenomena in optical glasses, and laser design.