READ ME File For 'Dataset for Investigation into the writing dynamics of planar Bragg gratings using pulsed 213 nm radiation' Dataset DOI: 10.5258/SOTON/D2179 ReadMe Author: Salman Ahmed, University of Southampton This dataset supports the publication: 'Investigation into the writing dynamics of planar Bragg gratings using pulsed 213 nm radiation' Submitted to be published in Optical Materials Express. Contents +++++++++ All data used for plots, calculations and descriptions in the paper as titled above is included here. Folders are labelled by powerset_(used average power of the laser) followed by a descritption of the data contained. There are eight folders, seven folders contains grating's reflectivity data for the waveguides written at seven different writing powers. Each folder (e.g. 'Powerset1_0.6 mW') Contains the raw data files taken from the optical spectrum analyser when measuring the reflectance of the written gratings in the FHD chip. This folder contains a background measurement taken as the reflection from an uncoupled fibre pigtail (BG_TM_F_00.dat). The other files are the reflection spectra of the written gratings, where 'TE' or 'TM' in the filename designates the polarisation of the coupled light, 'F' describes the direction of light propagation along the waveguide, the remaining digits (01, 02...etc) designate the waveguide number. Where these waveguides number correspond to following laser fluences used to write that waveguide containing gratings. Waveguide number Fluences (kJ/cm^2) 01 0.7 02 1.3 03 2.2 04 0.4 05 1.9 06 1 07 1.6 The folder (alignmentwaveguide) contains the data of written waveguide, which is used to observe alignment of UV spots and shown in Fig.3 of manuscript. The discription mentioned above is same for each power set. Geographic location of data collection: University of Southampton, U.K. Related projects: Engineering and Physical Sciences Research Council (EPSRC) (EP/M013294/1, EP/M013243/1, EP/M024539/1, EP/T001062/1, EP/V053213/1, EP/T00097X/1); Innovate UK (50414) Dataset available under a CC BY 4.0 licence Publisher: University of Southampton, U.K.