Titania-silica glass with reduced hydroxyl and halide concentrations and methods of making

Abstract

A glass body that includes titania and silica, wherein an average hydroxyl concentration amongst a plurality of segments of the glass body is from about 0 ppm to about 100 ppm and a peak-to-valley of hydroxyl concentration amongst the plurality of segments is about 60 ppm or less, the hydroxyl concentration being measured using a Fourier transform infrared spectroscopy in transmission, and the plurality of segments including every adjacent segment across a length and a width of the glass body, the length being about 25 mm or more and the width being about 25 mm or more, and the glass body comprising a chlorine concentration of about 100 ppm or less.

Dependencies are inferred from the claim text.