READ ME File For Dataset for 'Hollow-core fiber with stable propagation delay between -150C and +60C' Dataset DOI: 10.5258/SOTON/D2511 ReadMe Author: Zitong Feng, University of Southampton This dataset supports the publication: Zitong Feng, Hesham Sakr, John Richard Hayes, Eric Numkam Fokoua, Meng Ding, Francesco Poletti, David John Richardson, Radan Slavik Hollow-core fiber with stable propagation delay between -150C and +60C, Optics Letters Uploaded Archive (ZIP) includes 12 data files that are Excel format (.xlsx) The figures are as follows: Fig. 1: Calculated effective refractive index neff of the fundamental mode of the NANF-type HCF used in our experiments as a function of wavelength. Fig. 3: Measured TCD of a thinly coated HCF. For comparison,we also show reported data for low-TCD fibers from Furukawa, Linden Photonics, and Yangtze Optical FC, an SMF with standard acrylate coating (coated fiber diameter of 250 m), and an HCF with 75-m coating at temperatures above 60C. Fig.4: Measured phase thermal sensitivity S? of thinly coated HCF with the corresponding TCD shown on the right y axis. For comparison, previously reported measured data for bare HCF, HCF with 50-m, and S? extrapolated from 0 and 50-m data for a 10-m coated HCF are also shown. Date of data collection: 1/1/2020-1/4/2020 Information about geographic location of data collection: University of Southampton, U.K. Licence: Creative Commons Attribution. Related projects: Airguide, RAEng Senior Research Fellowship Date that the file was created: 24 Jan, 2023