The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Jun. 25, 2015
Daniel J. Gibson, Cheverly, MD (US);
Jasbinder S. Sanghera, Ashburn, VA (US);
Frederic H. Kung, Alexandria, VA (US);
Ishwar D. Aggarwal, Charlotte, NC (US);
Daniel J. Gibson, Cheverly, MD (US);
Jasbinder S. Sanghera, Ashburn, VA (US);
Frederic H. Kung, Alexandria, VA (US);
Ishwar D. Aggarwal, Charlotte, NC (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
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.