Analysis of the spatial chirp in the ultrashort pulsed finite beam diffraction by the volume Bragg grating

Biao Qiu; Baoxing Xiong; Shang Wu; Guiju Zhang; Kuaisheng Zou; Xiao Yuan

doi:10.1117/12.2037837

21 December 2013 Analysis of the spatial chirp in the ultrashort pulsed finite beam diffraction by the volume Bragg grating

Biao Qiu, Baoxing Xiong, Shang Wu, Guiju Zhang, Kuaisheng Zou, Xiao Yuan

Author Affiliations +

Proceedings Volume 9047, 2013 International Conference on Optical Instruments and Technology: Micro/Nano Photonics and Fabrication; 90470H (2013) https://doi.org/10.1117/12.2037837
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

Two-dimensional coupled wave theory is used to calculate spatial dispersion of the diffraction pulse through volume Bragg grating (VBG). Results indicate that the spatial dispersion, which describes the spatial chirp and reflects globally how far different frequency components separate, is influenced by the grating parameters, wavelength and the propagation distance. To two ultrashort pulses with different durations (100fs, 20fs), the degree of spatial broadening through the VBG and the propagation process is both presented. The approach provides a theoretical foundation to design proper volume Bragg gratings for redressing the spatial chirp in the ultrashort-pulse laser system.

Citation Download Citation

Biao Qiu, Baoxing Xiong, Shang Wu, Guiju Zhang, Kuaisheng Zou, and Xiao Yuan "Analysis of the spatial chirp in the ultrashort pulsed finite beam diffraction by the volume Bragg grating", Proc. SPIE 9047, 2013 International Conference on Optical Instruments and Technology: Micro/Nano Photonics and Fabrication, 90470H (21 December 2013); https://doi.org/10.1117/12.2037837

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KEYWORDS

Diffraction

Diffraction gratings

Fiber Bragg gratings

Ultrafast phenomena

Dispersion

Modulation

Wave propagation

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