Dataset for "Highly multi-mode hollow core fibres"

Data collection method:

Transmission : A length of 3/4 m of fibre was coupled to an incoherent light source (either EQ99X LDLS or tungsten halogen bulb) and its light transmission was optimised through fibre allignment and re-cleaving of fibre cleaves. Then a scan of signal versus wavelength was performed to collect the transmission data. Cutback : A long length of ~ 30 - 40 m of fibre was coupled to an incoherent light source (either EQ99X LDLS or tungsten halogen bulb) and its light transmission was optimised through fibre allignment and re-cleaving of fibre cleaves. Then a scan of signal versus wavelength was performed to collect the transmission data followed by a reduction in length to ~ 10 m and the previous process repeated. Bend loss: A length of ~ 4 m of fibre was laid in a roughly straight line and its transmission was measured. Various bends were then introduced and their transmission spectra also recorded. Near-field and far-field images: A ~ 3 m length of fibre was coupled to the white light source, filtered by a 12 nm FWHM bandpass at 1300 nm. At the fibre output a InGaAs camera imaged the near-field or far-field, using a lens for a the near-field. For the far-field the distance to the camera was calibrated by taking a number of pictures at different distances and using the intercept to determine the absolute position to the camera. For the near-field the scale was determined by the position of the capillaries using saturated images.

Technical details and requirements:

No requirement, plotting of data requires reading a simple txt file or image file.

Additional information:

Files include .dat text files, alternating between wavelength and signal, from which scans are easily determined by plotting all and comparing to the published paper. Images are provided along with backgrounds and can compared to the published example.