US 11,898,928 B2
Large core apparatus for measuring optical power in multifiber cables
Bin Liu, Chestnut Hill, MA (US); Scott Prescott, Belmont, NH (US); Dale Eddy, Gilford, NH (US); and Shawn P. Collins, Pembroke, NH (US)
Assigned to AFL Telecommunications LLC, Duncan, SC (US)
Appl. No. 17/296,164
Filed by AFL Telecommunications LLC, Duncan, SC (US)
PCT Filed Nov. 26, 2019, PCT No. PCT/US2019/063141
§ 371(c)(1), (2) Date May 21, 2021,
PCT Pub. No. WO2020/112704, PCT Pub. Date Jun. 4, 2020.
Claims priority of provisional application 62/771,857, filed on Nov. 27, 2018.
Prior Publication US 2022/0011194 A1, Jan. 13, 2022
Int. Cl. G01M 11/00 (2006.01)
CPC G01M 11/33 (2013.01) [G01M 11/31 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An optical power meter unit, comprising:
a transmitting/receiving port configured to connect to a fiber under test;
a light source;
an optical power meter;
an optical fiber extending between the transmitting/receiving port and the optical power meter, the optical fiber comprising a core size greater than a core size of the fiber under test; and
an optical branching device, wherein the optical fiber extending between the transmitting/receiving port and the optical power meter comprises a first branch of the optical branching device, the optical branching device further comprising a second branch extending to the light source, wherein a core size of the second branch is less than the core size of the optical fiber extending between the transmitting/receiving port and the optical power meter.