Measurement of the Group Velocity Dispersion of air using a femtosecond comb | Posted on:2015-05-31 | Degree:M.S | Type:Thesis | University:The University of Alabama in Huntsville | Candidate:Al salamah, Reem | Full Text:PDF | GTID:2478390017499117 | Subject:Optics | Abstract/Summary: | | In this thesis, the Group Velocity Dispersion (GVD) of air has been measured by using a femtosecond frequency comb at 1.5 microm. By comparing the spectra from a balanced and unbalanced Mach - Zehnder interferometer, the need for vacuum tube is eliminated. The method employs the Fast Fourier Transform of both auto- and cross correlation to find the spectral and their differences. The GVD of air is then calculated from these spectral phase differences. With twenty-five independent measurements, the GVD of air was found to be 0.0120 fs2/mm, with a standard deviation of 0.0075 fs2/mm. | Keywords/Search Tags: | Air, GVD | | Related items |
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