Title

Cross-Correlation Technique For Dispersion Characterization Of Chirped Volume Bragg Gratings

Abstract

We propose using cross-correlation frequency-resolved optical gating for dispersion characterization of optical elements with high dispersion, such as ultrashort pulse stretchers and compressors. The technique is based on spectrally resolved second-order cross correlation (sum frequency generation) of a stretched pulse with a reference short pulse. Dispersion of optical elements with a high pulse stretching ratio can be completely characterized using this method, even with moderate resolution of spectral measurements of the cross-correlation signal. The proposed technique is used to measure dispersion of a chirped Bragg grating recorded in photo-thermo-refractive glass. It was found that dispersion of these gratings is almost linear with wavelength and has approximately the same slope with opposite signs for two orientations of the grating with opposite faces of the grating used as the input face. Analysis of higher-order dispersion of the grating shows some variations of dispersion across the aperture of the grating, mostly in the amount of third-order dispersion contribution. © 2009 Optical Society of America.

Publication Date

10-20-2009

Publication Title

Applied Optics

Volume

48

Issue

30

Number of Pages

5786-5792

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.48.005786

Socpus ID

70350330928 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/70350330928

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