CN202533625U

CN202533625U - Fiber fracture-prevention pigtail

Info

Publication number: CN202533625U
Application number: CN2012201663569U
Authority: CN
Inventors: 彭延斌; 樊建银; 余朝晃; 唐淋; 吴忠标
Original assignee: New Sino Photoelectric Technology (baojing) Co Ltd
Current assignee: New Sino Photoelectric Technology (baojing) Co Ltd
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2012-11-14
Anticipated expiration: 2022-04-19

Abstract

The utility model discloses a fiber fracture-prevention pigtail. The pigtail is characterized in that the pigtail comprises an optical fiber (1), a 704 silicon gel layer (2), a 353ND glue layer (3) and a glass tube (4); the pigtail fiber is also characterized in that a root portion of the optical fiber (1) is coated with the 704 silicon gel layer (2); and the optical fiber (1) coated with the 704 silicon gel layer (2) penetrates through the glass tube (4) which is injected with the 353ND glue layer (3). With the fiber fracture-prevention pigtail of the utility model, bend and damage as well as fiber fracture of the optical fiber on the pigtail can be effectively avoided, and rejection rate of pigtail products can be reduced.

Description

A kind of tail optical fiber that prevents disconnected fibre

Technical field

The utility model relates to the optical communication product scope, relates in particular to a kind of disconnected fine tail optical fiber that prevents.

Background technology

In the optical communication product; Often need use tail optical fiber (Pigtail); The structure of Pigtail is after the optical fiber of 0. 25 millimeters of 1～2 diameters divests coat; Naked fibre (diameter is 0.125 millimeter) is filled with glue through 1 endoporus, and (endoporus is in the glass capillary of 125.3～126um) special precision, toasts the assurance glue curing then at proper temperature with in the time.Traditional method for making is directly to use 353ND glue and optical fiber curing together; Matter is rigid crisp after the 353ND adhesive curing; Easy of crack; The limit of glue cracking is just very sharp, if place improper or misoperation will let optical fiber directly scrape on this sharp glue limit, causes directly impaired or disconnected fibre of optical fiber; Simultaneously; Wear fine operation for ease; The front end of glass capillary all has a bit of tapered district, and the inside surface of this tapered zone often has some burrs or impurity, can be because the relation of expanding with heat and contract with cold in glue curing or application process; These burrs or impurity will push optical fiber, possibly cause the impaired or fracture of optical fiber.Behind the impaired or disconnected fibre of optical fiber, do not reach request for utilization with regard to light signal is died down or directly scrap.

Traditional mode of production is not detect after tail optical fiber (Pigtail) is produced; Direct and chip is coupled; Could find the bad of tail optical fiber (Pigtail) through this link of test then, so not only waste a large amount of man-hours, also waste valuable glue simultaneously; More serious is to cause irreversible damage or scrap cost price ten minutes height being worth valuable waveguide chip.

The technical matters that the utility model method will solve provides a kind of root at optical fiber and applies the soft silica gel of one deck; Slow down because of placing and overbend during operation or misoperation or transportation vibrations cause tail optical fiber (Pigtail) damage or disconnected fine, reduce the Pigtail scrappage to reach.

For realizing above purpose, the technical scheme that the utility model adopts is: a kind of tail optical fiber that prevents disconnected fibre is characterized in that it comprises optical fiber (1), 704 silica gel layer (2), 353ND glue-line (3) and glass tube (4); Its characteristic also is: described optical fiber (1) root applies 704 silica gel layer (2), and the optical fiber (1) that scribbles 704 silica gel layer (2) penetrates the glass tube (4) that is perfused with 353ND glue-line (3).

Described glass tube (4) front end is provided with a bit of tapered district.

The beneficial effect of the utility model: it is impaired and disconnected fine that the utility model method can effectively avoid tail optical fiber (Pigtail) to go up fibre-optical bending, reduces the scrappage of tail optical fiber (Pigtail) product.

Description of drawings

Fig. 1 is the synoptic diagram of the utility model.

Numerical reference in Fig. 1 is expressed as: 1, optical fiber; 2,704 silica gel layer; 3,353ND glue-line; 4, glass tube.

Embodiment

In conjunction with Fig. 1 the utility model is described further.The relation of assemblying of the utility model is: described optical fiber 1 root applies 704 silica gel layer 2, and the optical fiber 1 that scribbles 704 silica gel layer 2 penetrates the glass tube 4 that is perfused with 353ND glue-line 3.

The technological process of producing the utility model is:

1. optical fiber 1 is divested coat by the common process requirement;

2. be about 2 millimeters 704 silica gel layer 2 by shown position in bare fibre 1 end coat length, dried 10 minutes;

3. the optical fiber 1 that will scribble 704 silica gel layer 2 penetrates the glass tube 4 that is perfused with 353ND glue-line 3, then glass tube 4 is toasted straight up.

More than a kind ofly to the utility model provided prevent that disconnected fine tail optical fiber from having carried out detailed introduction; Principle and embodiment to the utility model among this paper are set forth, and the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.

Claims

1. one kind prevents disconnected fine tail optical fiber, it is characterized in that it comprises optical fiber (1), 704 silica gel layer (2), 353ND glue-line (3) and glass tube (4); Its characteristic also is: described optical fiber (1) root applies 704 silica gel layer (2), and the optical fiber (1) that scribbles 704 silica gel layer (2) penetrates the glass tube (4) that is perfused with 353ND glue-line (3).

2. a kind of disconnected fine tail optical fiber that prevents according to claim 1 is characterized in that glass tube (4) front end is provided with a bit of tapered district.