US 11,977,254 B2 · Composed multicore optical fiber device

Abstract

A composed multicore optical fiber (MCF) device includes a first segment (MCF1) of a MCF having three coupled identical cores and having a first length (L1) and a second segment (MCF2) of the same MCF having a second length (L2). L1 and L2 are different from each other. One of the three coupled cores is located in a geometrical centre of the MCF. The first segment (MCF1) and the second segment (MCF2) of the MCF are rotated 180° relative to each other and spliced together. The first segment (MCF1) is spliced to a first segment (SMF1) of a single mode fiber (SMF) and the second segment (MCF2) is spliced to a second segment (SMF2) of the SMF. The free end of the second segment (SMF2) of the SMF is coupled to a mirror (M) to reflect an optical signal coming from the first segment (SMF1) of the SMF.

Claims15

Dependent claims

A composed multicore optical fiber device, comprising:

a first segment of a multicore fiber comprising three coupled cores and having a first length, wherein one of the three coupled cores is located in the geometrical centre of the multicore fiber;
a second segment of the same multicore fiber having a second length, the first length and the second length being different from each other;
wherein the first segment and the second segment of the multicore fiber are rotated 180° relative to each other and spliced together;
wherein the first segment of the multicore fiber is spliced to a first segment of a single mode fiber and the second segment of the multicore fiber is spliced to a second segment of the single mode fiber;
and
wherein a free end of the second segment of the single mode fiber is coupled to a light reflector or mirror to reflect a guided light coming from the first segment of the single mode fiber.

3 more elements

Dependencies are inferred from the claim text.

Composed multicore optical fiber device

Life of this patent

Composed multicore optical fiber device

Life of this patent

Abstract

Claims15