READ ME File For 'DATASET for Spectroscopy of thulium-doped tantalum pentoxide waveguides on silicon' Dataset DOI: https://doi.org/10.5258/SOTON/D1419 ReadMe Author: Colin J. MitchellKe Li, Ralph Schachler, Ali Khokhar, Xia Chen, Stevan Stanković, Xiangjun Wang, Neil P Sessions, Katarzyna M Grabska, David J Thomson, Graham T Reed, James S Wilkinson: University of Southampton and Ralph Schachler, Christoph Daedlow: Finetech GmbH & Co (Berlin, Germay) This dataset supports the publication: Tooling and procedures for hybrid integration of lasers by flip-chip technology for ESTC conference paper 2020 Description: The excel file contains all experimental data used for generating Fig.12a and Fig.12b. Also contained in the Excel file are the images from Fig.3a, Fig.3b, Fig.9, and Fig.10 without annotation and in high resolution. The figures are as follows: Fig. 3 a) Calibration glasses aligned, and b) at high magnification showing minor misalignment Fig. 9 Optical resolution down to 0.7 µm with Finetech A7+ optics Fig. 10 Alignment, viewed through the beamsplitter prior to contact and bonding, of a 2 µm wide laser to a 10 µm waveguide Fig. 12 Optical output from lasers, a) with current-voltage for three lasers and IR camera from above, b) collected spectrum from output grating Geographic location of data collection: University of Southampton, U.K. Date of data collection 2016-01-01 to 2019-12-30 Funding and related projects: This work was supported by the UK EPSRC Programme Grant, Silicon Photonics for Future Systems EP/L00044X/1 Dataset available under a CC BY 4.0 licence Publisher: University of Southampton, U.K. Date: June 2020