Section and assembly comprising a plurality of such sections

1. A section for an assembly, said assembly being arranged to be assembled by a plurality of sections put together, wherein said section comprises:

an elongated structure having a left end and a right end;

an optical fiber, said optical fiber having a left end and a right end and extending from its left end to its right end in such a way that:

the left end of the elongated structure and the left end of the optical fiber are located on the same left side of the section; and

the right end of the elongated structure and the right end of the optical fiber are located on the same right side of the section;

each end of the optical fiber is enclosed in a junction box, the junction box of the respectively right end or left end of the optical fiber of said section being arranged to be assembled with the junction box of the respectively left end or right end of the optical fiber of another similar section in order to allow an optical connection between the optical fibers of two sections; the left end of the elongated structure being arranged to be connected and locked with the right end of another elongated structure of the other similar section.

2. The section according to claim 1 , wherein, on the left end of the optical fiber and/or on the right end of the optical fiber, the optical fiber inside the junction box is surrounded by less layer(s) than outside the junction box or by other layer(s) than outside the junction box.

3. The section according to claim 1 , wherein, on the left end of the optical fiber and/or on the right end of the optical fiber, the at least one layer, surrounding the optical fiber outside the junction box but not inside the junction box is connected both to the junction box and to the respectively the left end or right end of the section.

4. The section according to claim 1 , wherein the junction box of the respectively right end or left end of the optical fiber is arranged to be connected and locked to a junction box of the respectively right end or left end of the optical fiber of the other similar section of an assembly.

5. The section according to claim 1 , wherein the section comprises, for each junction box, a decoupling means arranged to decouple pulling force on the assembly of the elongated structure of this section and on the junction box from the optical fiber.

6. The section according to claim 5 , wherein at least one layer surrounding the optical fiber outside the junction box but not inside the junction box is connected and integrated with the junction box thanks to the decoupling means.

7. The section according to claim 6 , wherein the decoupling means comprises:

a decoupling structure comprising at least one tube-shaped part and means for screwing the decoupling structure to the junction box, the decoupling structure being positioned between:

the at least one layer surrounding the optical fiber outside the junction box but not inside the junction box; and

the optical fiber

so that:

the decoupling structure is surrounded by the at least one layer surrounding the optical fiber outside the junction box but not inside the junction box; and

the optical fiber is surrounded by the decoupling structure; and

connection means surrounding at least one part of the decoupling structure and the at least one layer surrounding the optical fiber outside the junction box but not inside the junction box, the connection means being fixed on the decoupling structure thanks to the means for screwing, the connection means being arranged to grip, on the decoupling structure, the at least one layer surrounding the optical fiber outside the junction box but not inside the junction box.

8. The section according to claim 1 , wherein at least one end of the optical fiber:

is equipped with an optical connector; and/or

is separated in two channels by a coupler.

9. The section according to claim 1 , wherein a removable cover or plug is positioned on each junction box and fixed to its junction box, said removable cover or plug being arranged to close or seal the inside of the junction box in order to isolate the inside of the junction box containing the optical fiber from the outside of the junction box and/or to protect the inside of the junction box from the dust or from damages caused by the external environment surrounding the junction box, the removable cover or plug being arranged to be removed before assembling two junction boxes together, each end of the optical fiber inside the corresponding junction box being already naked.

10. An assembly comprising a plurality of assembled sections according to claim 1 .

11. The assembly according to claim 10 , wherein two assembled junction boxes are:

covered by a protection cover positioned above the two assembled junction boxes; and

fixed to the protection cover;

said protection cover being arranged to close or sealing the inside of the two assembled junction boxes from the outside of the two assembled junction boxes.

12. The assembly according to claim 10 , wherein two assembled junction boxes, placed at a connection of a first said section and a second said section, are covered by a protection housing covering and insulating from the outside of the protection housing:

the entire connection of two connected ends of the connected sections; and

the two assembled junction boxes;

said protection housing comprising a top portion and a bottom portion, said top and bottom portions comprising:

a left end fixed at a right side of the first section of the assembly; and

a right end fixed at a left side of the second section of the assembly.

13. A process of assembling a plurality of sections according to claim 1 , comprising the following steps:

connecting the left end of elongated structure of a second section to the right end of the elongated structure of a first section; and

connecting or assembling the junction box enclosing the left end of the optical fiber of the second section to the junction box enclosing the right end of another optical fiber of the first section so as to form two assembled junction boxes.

14. The process according to claim 13 , wherein the process comprises:

fixing the two assembled junction boxes with securing means.

15. The process according to claim 13 , wherein the process comprises:

removing the removable cover or plug positioned on each junction box before connecting or assembling the two junction boxes together.

16. The process according to claim 13 , wherein the process comprises:

connecting together, inside the two assembled junction boxes, the two ends of the two optical fibers of two connected sections.

17. The process according to claim 16 , wherein:

connecting together, by splicing inside the two assembled junction boxes, the two ends of two optical fibers of two connected sections, or

connecting an optical connector to at least one free end of the optical fiber of the first section or of the second section comprised in an unassembled junction box to another junction box.

18. The process according to claim 13 , wherein it comprises:

controlling the optical connection between two optical fibers connected inside two assembled junction boxes by connecting an optical control means to the free end of the optical fiber of the first section or of the second section comprised in an unassembled junction box to another junction box.

19. The process according to claim 13 , wherein it comprises:

connecting a coupler to the left end of the optical fiber of the second section or to the right end of the optical fiber of the first section in order to separate the end of this separated optical fiber in first and second channels; connecting an optical control means to the first channel of the separated fiber; and connecting the second channel of the separated fiber to an end of the other optical fiber.

20. The process according to claim 13 , wherein the process further comprises:

positioning and fixing, by securing means, a protection cover on the two assembled junction boxes.

21. The process according to claim 13 , wherein the process further comprises:

positioning a protection housing, in order to cover and insulate from the outside of the protection housing:

the entire connection of the two connected ends of the connected sections; and

the two assembled junction boxes,

fixing a left end of the protection housing at a right side of the first section of the assembly; and

fixing a right end of the protection housing at a left side of the second section of the assembly.