CN203324505U

CN203324505U - Fiber array with high reliability

Info

Publication number: CN203324505U
Application number: CN2013202026492U
Authority: CN
Inventors: 杨开发
Original assignee: SHANGHAI CREATE OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: SHANGHAI CREATE OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-04-22
Filing date: 2013-04-22
Publication date: 2013-12-04
Anticipated expiration: 2023-04-22

Abstract

The utility model relates to a fiber array with high reliability. The upper surface of a front half portion of a fiber positioning substrate is equipped with a vertical micro-groove array, exposed fibers which are peeled and positioned at the front end of a fiber ribbon are pressed into the vertical micro-groove array of the fiber positioning substrate via a cover glass, and a transitional area between the exposed portion and a non-peeled portion of the fiber ribbon is pasted and fixed on the upper surface of a rear half portion of the fiber positioning substrate; and the upper surface of the front half portion of the fiber positioning substrate is also equipped with a transverse micro-groove array, the transverse micro-groove array and the vertical micro-groove array vertically penetrate through each other, and the fiber positioning substrate, the fiber ribbon and the cover glass are fixedly connected and integrated via a glue layer in the vertical and transverse micro-groove arrays. Via structural improvement of the fiber positioning substrate, the glue joint intensity among the fiber positioning substrate, the fiber ribbon and the cover glass in the fiber array is improved, degumming phenomenon is avoided, and the reliability of the fiber array is enhanced. The fiber array with high reliability can be applied to high-temperature high-humidity environments.

Description

A kind of fiber array of high-reliability

Technical field

The utility model relates to a kind of optical element of fiber optic communication field, is specifically related to a kind of fiber array of precision positioning.

Background technology

Fiber to the home (FTTH) is to realize that voice, data and CATV (cable television) merge the best solution of access.FTTH generally adopts EPON (PON) access, and optical branching device is one of core devices in PON, in order to realize the distribution of light signal.Optical branching device consists of minute optical chip based on zero diopter light path (PLC) technology and I/O fiber array.

In dense wave division multipurpose (DWDM) system, the core devices of array waveguide grating (AWG) commonly used is based on the wavelength-division chip of PLC technology, and input/output end port wherein also needs to adopt fiber array.

As shown in Figure 1 and Figure 2, the fiber array of prior art by high-precision fiber orientation substrate 1 ', cover glass 2 ' and several fibre ribbons 3 ' form, the high-precision micro slot array of fiber orientation substrate 1 ' above be carved with, in order to optical fiber is accurately located, fibre ribbon 3 ' partly peeled off, expose naked fine 4 ', naked fine 4 ' by cover glass 2 ' be pressed into fiber orientation substrate 1 ' micro slot array in and with glue, be adhesively fixed, fibre ribbon 3 ' released part and the transitional region of unstripped part by glue layer 5 ' be adhesively fixed on fiber orientation substrate 1 ' latter half.

In above-mentioned fiber array, fiber orientation substrate 1 ' can adopt semicircle microflute or V-arrangement microflute, the former makes by mechanical scratching or chemical etching technology, and the latter makes by mechanical scratching technique.Be provided with semicircle microflute 7 ' fiber orientation substrate 1 ' structure referring to Fig. 3-Fig. 5.Fiber orientation substrate 1 ' first half be carved with longitudinally micro slot array 6 ', fiber orientation substrate 1 ' latter half and first half between be provided with a step, fix unstripped 3 ' time of fibre ribbon at latter half, this step can prevent the naked fine 4 ' bending of fibre ribbon 3 ' front end.Semicircle microflute 7 ' groove width be slightly less than the diameter of optical fiber, support optical fiber with the seamed edge of both sides, reach pinpoint purpose.Be provided with V-arrangement microflute 8 ' fiber orientation substrate 1 ' structure referring to Fig. 6, V-arrangement microflute 8 ' by two walls, support optical fiber, reach pinpoint purpose.

Fiber orientation substrate 1 ', fibre ribbon 3 ' be adhesively fixed by glue with cover glass 2 ' three, the most critical factor that affects the fiber array reliability is the bonding strength of glue.

As shown in Figure 7, Figure 8, due to fiber orientation substrate 1 ' above only have and arrange micro slot array longitudinally, when naked fine 4 ' arrange wherein and fixing with glue after, the glue layer 9 in adjacent two microflutes ' by naked fine 4 ' keep apart each glue layer 9 ' all be fine strip shape with the seamed edge of microflute.Optical branching device and array waveguide grating in being usually used in hot and humid harsh and unforgiving environments, because the intensity of the glue band of this mutual isolation is less, cover glass 2 ' with fiber orientation substrate 1 ' often degumming phenomenon can occur, affect the positioning precision of optical fiber.

Summary of the invention

The purpose of this utility model is the deficiency existed in order to overcome prior art, and a kind of fiber array of high-reliability is provided, and this fiber array can degumming phenomenon not occur for hot and humid harsh and unforgiving environments, can guarantee the positioning precision of optical fiber.

The utility model is achieved through the following technical solutions: a kind of fiber array of high-reliability, comprise the fiber orientation substrate, cover glass and fibre ribbon, the upper surface of the first half of described fiber orientation substrate is provided with for optical fiber being carried out to pinpoint micro slot array longitudinally, the front end of described fibre ribbon is to be stripped from the naked fibre exposed, described naked fibre is pressed in the micro slot array longitudinally of described fiber orientation substrate by described cover glass, transitional region between the unstripped part of described naked fibre and described fibre ribbon is adhesively fixed on the upper surface of the latter half of described fiber orientation substrate by glue layer, the upper surface of the first half of described fiber orientation substrate also is provided with horizontal micro slot array, the two vertical running through mutually of described horizontal micro slot array and described micro slot array longitudinally, described fiber orientation substrate, described fibre ribbon and described cover glass are connected to one by the glue layer be arranged in micro slot array longitudinally and horizontal micro slot array.

The microflute of the strip that described micro slot array is longitudinally vertically arranged by a row forms, and described horizontal micro slot array consists of the microflute of the strip of a row horizontally set, the xsect of described microflute be shaped as " V " shape or semicircle.

The beneficial effects of the utility model are: the utility model is by the architecture advances to the fiber orientation substrate, improved the glue-joint strength between fiber orientation substrate, fibre ribbon and cover glass in the fiber array, avoid the generation of degumming phenomenon, improve the reliability of fiber array, guaranteed the positioning precision of optical fiber.The utility model can be used in hot and humid harsh and unforgiving environments.

The accompanying drawing explanation

The side structure schematic diagram of the fiber array that Fig. 1 is prior art;

Fig. 2 is the vertical view of Fig. 1;

The side structure schematic diagram of the fiber orientation substrate that is provided with semicircle microflute that Fig. 3 is prior art;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 be Fig. 4 A to structural representation;

The fiber orientation substrate structure schematic diagram that is provided with the V-arrangement microflute that Fig. 6 is prior art;

The distribution situation schematic diagram of glue in the semicircle microflute of the fiber array that Fig. 7 is prior art;

The distribution situation schematic diagram of glue in the V-arrangement microflute of the fiber array that Fig. 8 is prior art;

The structural representation that Fig. 9 is fiber orientation substrate of the present utility model;

The B-B of Figure 10 Fig. 9 to cross-sectional view;

The partial enlarged drawing of the D section that Figure 11 is Figure 10;

Figure 12 is the cross-sectional view that is provided with the fiber orientation substrate of V-arrangement microflute of the present utility model;

The partial enlarged drawing of the C section that Figure 13 is Figure 12;

The distribution situation schematic diagram of glue in the microflute that Figure 14 is fiber array of the present utility model.

In Fig. 1-Fig. 8,1 '-the fiber orientation substrate; 2 '-cover glass; 3 '-fibre ribbon; 4 '-naked fibre; 5 '-glue layer; 6 '-micro slot array; 7 '-semicircle microflute; 8 '-the V-arrangement microflute; 9 '-glue layer in microflute;

In Fig. 9-Figure 14,1-is micro slot array longitudinally; The micro slot array that 2-is horizontal; The semicircle microflute of 3-; 4-V shape microflute; The naked fibre of 5-; The 6-glue layer; The vertical microflute of 7-; The horizontal microflute of 8-.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

As Figure 9-Figure 11, a kind of fiber array of high-reliability, comprise the fiber orientation substrate, cover glass and fibre ribbon, the upper surface of the first half of fiber orientation substrate is provided with for optical fiber being carried out to pinpoint micro slot array longitudinally 1, the front end of fibre ribbon be stripped from expose naked fine 5, naked fine 5 are pressed in the micro slot array longitudinally 1 of fiber orientation substrate by cover glass, naked fine 5 and the unstripped part of fibre ribbon between transitional region be adhesively fixed on the upper surface of the latter half of fiber orientation substrate by glue layer, the upper surface of the first half of fiber orientation substrate also is provided with horizontal micro slot array 2, the two vertical running through mutually of horizontal micro slot array 2 and micro slot array longitudinally 1, the fiber orientation substrate, fibre ribbon and cover glass are connected to one by the glue layer be arranged in micro slot array 1 longitudinally and horizontal micro slot array 2.

As shown in figure 14, laterally microflute 8 runs through connection by each vertical microflute 7, when optical fiber by 1 location of micro slot array longitudinally and with glue fixedly the time, laterally the glue in microflute 8 and vertical microflute 7 connects the as a whole netted glue layer 6 that is, this structure has increased the bonding strength between fiber orientation substrate, fibre ribbon and cover glass, avoid the generation of degumming phenomenon, improved the reliability of fiber array.

In the utility model, the microflute of the strip that micro slot array 1 is vertically arranged by a row longitudinally forms, horizontal micro slot array 2 consists of the microflute of the strip of a row horizontally set, and as shown in Figure 10, Figure 11, microflute is xsect is shaped as semicircular semicircle microflute 3.Certainly, microflute can be also the V-arrangement microflute 4 that is shaped as " V " shape shown in Figure 12, Figure 13 of xsect.

Finally should be noted that; above content is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection domain; the simple modification that those of ordinary skill in the art carries out the technical solution of the utility model or be equal to replacement, all do not break away from essence and the scope of technical solutions of the utility model.

Claims

1. the fiber array of a high-reliability, comprise the fiber orientation substrate, cover glass and fibre ribbon, the upper surface of the first half of described fiber orientation substrate is provided with for optical fiber being carried out to pinpoint micro slot array longitudinally, the front end of described fibre ribbon is to be stripped from the naked fibre exposed, described naked fibre is pressed in the micro slot array longitudinally of described fiber orientation substrate by described cover glass, transitional region between the unstripped part of described naked fibre and described fibre ribbon is adhesively fixed on the upper surface of the latter half of described fiber orientation substrate by glue layer, it is characterized in that: the upper surface of the first half of described fiber orientation substrate also is provided with horizontal micro slot array, the two vertical running through mutually of described horizontal micro slot array and described micro slot array longitudinally, described fiber orientation substrate, described fibre ribbon and described cover glass are connected to one by the glue layer be arranged in micro slot array longitudinally and horizontal micro slot array.

2. the fiber array of high-reliability according to claim 1, it is characterized in that: the microflute of the strip that described micro slot array is longitudinally vertically arranged by a row forms, described horizontal micro slot array consists of the microflute of the strip of a row horizontally set, the xsect of described microflute be shaped as " V " shape or semicircle.