Maryland's Defense Patent Database

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Photonic band gap fibers using a jacket with a depressed softening temperature

Patent image
NRL

The present invention is generally directed to a photonic bad gap fiber and/or fiber preform with a central structured region comprising a first non-silica based glass and a jacket comprising a second non-silica based glass surrounding the central structured region, where the Littleton softening temperature of the second glass is at least one but no more than ten degrees Celsius lower than the Littleton softening temperature of the first glass, or where the base ten logarithm of the glass viscosity in poise of the second glass is at least 0.01 but no more than 2 lower than the base ten logarithm of the glass viscosity in poise of the first glass at a fiber draw temperature. Also disclosed is a method of making a photonic bad gap fiber and/or fiber preform.

Inventors: 
Gibson, Daniel J.; Sanghera, Jasbinder S.; Kung, Frederic H.; Aggarwal, Ishwar D.
Patent Number: 
Technical domain: 
Optics
FIle Date: 
2010-12-06
Grant Date: 
2015-08-04
Grant time: 
1,702 days
Grant time percentile rank: 
31
Claim count percentile rank: 
2
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY