US 12,248,192 B2
Rollable optical fiber ribbon with low attenuation, large mode field diameter optical fiber and cable
Dana Craig Bookbinder, Corning, NY (US); Ming-Jun Li, Horseheads, NY (US); and Pushkar Tandon, Painted Post, NY (US)
Assigned to CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US)
Filed by CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US)
Filed on Sep. 28, 2023, as Appl. No. 18/374,337.
Application 18/374,337 is a continuation of application No. 17/970,747, filed on Oct. 21, 2022, granted, now 11,796,749.
Application 17/970,747 is a continuation of application No. 17/742,682, filed on May 12, 2022, granted, now 11,493,715, issued on Nov. 8, 2022.
Application 17/742,682 is a continuation of application No. 17/172,579, filed on Feb. 10, 2021, granted, now 11,360,280, issued on Jun. 14, 2022.
Application 17/172,579 is a continuation of application No. 16/853,892, filed on Apr. 21, 2020, granted, now 10,948,674, issued on Mar. 16, 2021.
Application 16/853,892 is a continuation of application No. 16/055,773, filed on Aug. 6, 2018, granted, now 10,649,163, issued on May 12, 2020.
Claims priority of provisional application 62/542,480, filed on Aug. 8, 2017.
Prior Publication US 2024/0027716 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 6/44 (2006.01)
CPC G02B 6/4404 (2013.01) [G02B 6/4432 (2013.01); G02B 6/4478 (2013.01); G02B 6/448 (2013.01); G02B 6/4434 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rollable optical fiber ribbon, comprising:
a plurality of optical fibers, wherein each of the optical fibers comprises:
a core;
a cladding surrounding and directly adjacent to the core; and
a coating surrounding the cladding, wherein each of the optical fibers is characterized by:
an outer diameter ≤210 microns as measured at an outer surface of the coating;
a mode field diameter of ≥9 microns at a wavelength of 1310 nanometers (nm); and
a macrobend loss of ≤0.5 dB/turn at a wavelength of 1550 nm when wound about a mandrel having a diameter of 15 millimeters (mm); and
a plurality of bonds spaced intermittently along lengths of a first optical fiber in the optical fibers and a second optical fiber in the optical fibers such that the bonds intermittently join the first optical fiber and the second optical fiber.