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17 March 2023 Compact ultra-fast pulse modulation device based on rotated chirped volume Bragg gratings
Murat Yessenov, Oussama Mhibik, Lam Mach, Leonid Glebov, Ayman F. Abouraddy, Ivan Divliansky
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Proceedings Volume PC12411, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII; PC124110V (2023) https://doi.org/10.1117/12.2668229
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
We introduce a new optical component – rotated chirped volume Bragg grating (r-CBG) – with a compact footprint capable of spatially resolving the spectrum without the need for subsequent free-space propagation. Unlike conventional chirped Bragg gratings in which both the length and width of the device increase with operation bandwidth, the link between the length and width of r-CBG is severed, leading to a significantly reduced footprint for the same bandwidth. We fabricate and characterize such a device of total volume 25x6x6 mm3 in multiple spectral windows, we study their spectral resolution, and via FROG measurements we confirm that a pair of cascaded r-CBGs can resolve and combine the spectrum of a 100-fs pulse.
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Murat Yessenov, Oussama Mhibik, Lam Mach, Leonid Glebov, Ayman F. Abouraddy, and Ivan Divliansky "Compact ultra-fast pulse modulation device based on rotated chirped volume Bragg gratings", Proc. SPIE PC12411, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII, PC124110V (17 March 2023); https://doi.org/10.1117/12.2668229
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KEYWORDS
Ultrafast phenomena
Volume Bragg gratings
Modulation
Miniaturization
Optical components
Spectroscopy
Spectral resolution
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