Colorless splitter/combiner cable assembly

Patent metadata

Field	Value
Publication number	US-12113574-B2
Application number	US-202117448644-A
Country	US
Kind code	B2
Filing date	Sep 23, 2021
Priority date	Nov 1, 2019
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

A colorless mux/demux cable assembly, including a first fiber optic cable, a second fiber optic cable, and a main body that includes an N:1 optical combiner and a 1:N optical splitter. The N:1 optical combiner is configured to combine individual optical signals received by each of N input fibers of the second fiber optic cable and provide a combined output signal to an output fiber of the first fiber optic cable. The 1:N optical splitter is configured to split a combined input optical signal (having N wavelength channels) received via an input fiber of the first fiber optic cable and provide a split output signal comprising each of the N wavelength channels to each of N output fibers of the second fiber optic cable.

First claim

What is claimed is:

1. A colorless multiplexer/demultiplexer (mux/demux) cable assembly, comprising:
a 1:N optical splitter, wherein N is a positive integer of 2 or higher;
a N:1 optical combiner coupled side-by-side to the 1:N optical splitter;
a first fiber optic cable having a proximal end fixedly connected at a first end of the cable assembly and extending from the first end of the cable assembly, the first fiber optic cable comprising an input fiber and an output fiber, wherein the input fiber has a proximal end fixedly connected within the cable assembly that is optically coupled to an input of the 1:N optical splitter and the output fiber has a proximal end fixedly connected within the cable assembly that is optically coupled to an output of the N:1 optical combiner; and
a second fiber optical cable having a proximal end fixedly connected at a second end of the cable assembly and extending from the second end of the cable assembly opposite to the first end, the second fiber optical cable comprising N output fibers and N input fibers, wherein each of the N output fibers has a proximal end fixedly connected within the cable assembly that is optically coupled to an output of the 1:N optical splitter and each of the N input fibers has a proximal end fixedly connected within the cable assembly that is optically coupled to an input of the N:1 optical combiner,
wherein the 1:N optical splitter is configured to receive an optical signal made up of N wavelength channels, split the optical signal N ways independent of wavelength, and provide each of the N wavelength channels to each of the N output fibers.

2. The colorless mux/demux cable assembly of claim 1 , further comprising:
a first duplex fiber optic connector coupled to a distal end of the first fiber optic cable; and
N second duplex fiber optic connectors coupled to distal ends of the N input and N output fibers of the second fiber optic cable,
wherein:
distal ends of the N input and N output fibers are arranged in N pairs, each of the N pairs including a distal end of one of the N input fibers and a distal end of one of the N output fibers;
each of the N second duplex fiber optic connectors is coupled to a corresponding one of the N pairs; and
the N second duplex fiber optic connectors have a different form factor than the first duplex fiber optic connector.

3. The colorless mux/demux cable assembly of claim 2 , wherein the first duplex fiber optic connector comprises a duplex CS fiber optic connector and each of the N second duplex fiber optic connectors comprises a duplex LC fiber optic connector.

4. The colorless mux/demux cable assembly of claim 1 , wherein the 1:N optical splitter is configured to split the optical signal N ways, each having one of equal or unequal power.

5. The colorless mux/demux cable assembly of claim 1 , wherein the proximal end of the first fiber optic cable fixedly connected at the first end of the cable assembly comprises an integral connection with the cable assembly at the first end.

6. The colorless mux/demux cable assembly of claim 5 ,
wherein the proximal end of the input fiber fixedly connected within the cable assembly comprises an integral connection with the cable assembly at the first end, and
wherein the proximal end of the output fiber fixedly connected within the cable assembly comprises an integral connection with the cable assembly at the first end.

7. The colorless mux/demux cable assembly of claim 1 , wherein the proximal end of the second fiber optical cable fixedly connected at the second end of the cable assembly comprises an integral connection with the cable assembly at the second end.

8. The colorless mux/demux cable assembly of claim 7 ,
wherein the proximal end of each of the N output fibers fixedly connected within the cable assembly comprises an integral connection with the cable assembly at the second end, and
wherein the proximal end of each of the N input fibers fixedly connected within the cable assembly comprises an integral connection with the cable assembly at the second end.

9. A colorless splitter/combiner cable assembly, the cable assembly comprising:
a first fiber optic cable, comprising:
an input fiber configured to receive a combined input optical signal comprising N wavelength channels; and
an output fiber;

a second fiber optic cable, comprising:
N output fibers, where N is a positive integer greater than 1; and
N input fibers, each configured to receive an individual optical signal;

a main body, fixedly connected to the first fiber optic cable and the second fiber optic cable, comprising:
an N:1 optical combiner configured to combine individual optical signals received by each of the N input fibers of the second fiber optic cable and provide a combined output signal to the output fiber of the first fiber optic cable; and
a 1:N optical splitter configured to split the combined input optical signal received by the input fiber of the first fiber optic cable to provide a split output signal comprising each of the N wavelength channels to each of the N output fibers of the second fiber optic cable.

Assignees

• Ii Vi Delaware Inc

Inventors

• Williams Martin R
• Wang Yajun
• Green Eric Timothy
• Gurusami Aravanan
• Devicharan Deepak
• Zahnley Timothy Kent
• Burgess Mike

Classifications

• H04B10/2971

  A single amplifier for both directions · CPC title

• H01S3/06787

  Bidirectional amplifier · CPC title

• H04B10/297

  Bidirectional amplification · CPC title

• H01S3/1312

  by controlling the optical pumping · CPC title

• H01S2301/04

  Gain spectral shaping, flattening · CPC title