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Rotated chirped Bragg gratings (r-CBGs) are an innovative optical component that spatially resolves spectra of optical beams redirecting spectral components in orthogonal planes along direction of beam propagation, and eliminating the need for free-space propagation. This enables ultra-compact spectrometers and pulse transformers. This concept was further extended by multiplexing r-CBGs and creating an X-CBG which enables compact multi-band spectroscopy. We will demonstrate different applications of r-CBGs including the synthesis of space-time wave packets with exceptional spectral resolution. This compact and versatile technology holds great promise for advancing optical systems in various fields, from materials identification to quantum optics.
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O. Mhibik, M. Yessenov, L. Mach, L. Glebov, A. F. Abouraddy, Ivan Divliansky, "Rotated chirped Bragg gratings: design and applications," Proc. SPIE PC12866, Components and Packaging for Laser Systems X, PC1286605 (13 March 2024); https://doi.org/10.1117/12.3005024