Enhanced intrapulse difference frequency generation in the mid-infrared by a spectrally dependent polarization state

We present a technique to optimize the intrapulse difference frequency generation efficiency for mid-infrared generation. The approach employs a multi-order wave plate that is designed to selectively rotate the polarization state of the incoming spectral components on the relevant orthogonal axes fo...

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Bibliographic Details
Published in:Optics letters 2022-01, Vol.47 (2), p.261-264
Main Authors: Bournet, Q, Guichard, F, Natile, M, Zaouter, Y, Joffre, M, Bonvalet, A, Pupeza, I, Hofer, C, Druon, F, Hanna, M, Georges, P
Format: Article
Language:English
Subjects:
Optics
Optimization
Physics
Polarization
Wave plates
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Summary:We present a technique to optimize the intrapulse difference frequency generation efficiency for mid-infrared generation. The approach employs a multi-order wave plate that is designed to selectively rotate the polarization state of the incoming spectral components on the relevant orthogonal axes for subsequent nonlinear interaction. We demonstrate a significant increase of the mid-infrared average power generated, of a factor ≥2.5 compared with the conventional scheme, owing to an optimally distributed number of photons enrolled in the difference frequency generation process.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.444908