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US 11,426,989 B2Granted
Laser bonded transparent glass-based articles and methods of making the same
AssigneeCorning Optical Communications LLC
InventorsStephan Lvovich Logunov, Alexander Mikhailovich Streltsov
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Abstract
Methods of making a transparent glass-based article including at least two transparent glass-based substrates and a laser-induced bond therebetween. Methods include arranging the two transparent glass-based substrates relative to each other to form a contact area. Methods also include providing a laser beam contiguous the contact area to bond the two transparent glass-based substrates.
Claims24
An article comprising:
- a first glass-based substrate having a hydroxyl concentration of less than 5 ppm,
- a second glass-based substrate, having a hydroxyl concentration greater than 300 ppm, arranged in direct contact with the first glass-based substrate, the second glass-based substrate absorbs at least 20% of light, from a laser, at a wavelength from about 2500 nm to about 3000 nm in an amount sufficient to heat and bond to the first glass-based substrate to the second glass-based substrate, and
- a laser-induced bond joins the first glass-based substrate and the second glass-based substrate, wherein the laser-induced bond is a localized bond directly between the first glass-based substrate and the second glass-based substrate.
An article comprising:
- a first absorbing fused silica glass substrate comprising a hydroxyl concentration greater than about 300 ppm,
- a second non-absorbing glass-based substrate, having a hydroxyl concentration of less than 5 ppm, arranged in direct contact with the first fused silica glass substrate, and
- a laser-induced bond connects the first fused silica glass substrate to the second glass-based substrate, wherein the laser-induced bond is a localized bond directly between the first fused silica glass substrate and the second glass-based substrate,
- wherein the first fused silica glass substrate absorbs at least 20% of light, from a laser, at a wavelength from about 2500 nm to about 3000 nm in an amount sufficient to heat and bond to the first glass-based substrate to the second glass-based substrate.
1 more element
An article comprising:
- a first glass-based substrate having a hydroxyl concentration greater than 300 ppm,
- a second glass-based substrate, having a hydroxyl concentration greater than 300 ppm, arranged in direct contact with the first glass-based substrate, the first and second glass-based substrates absorb at least 20% of light, from a laser, at a wavelength from about 2500 nm to about 3000 nm in an amount sufficient to heat and bond to the first glass-based substrate to the second glass-based substrate, and
- a laser-induced bond joins the first glass-based substrate and the second glass-based substrate, wherein the laser-induced bond is a localized bond directly between the first glass-based substrate and the second glass-based substrate.
Dependencies are inferred from the claim text.