Rotated chirped Bragg gratings: design and applications

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.