CN201508424U

CN201508424U - Lock pin for two-sided inserting suitable for multi-fiber connection

Info

Publication number: CN201508424U
Application number: CN2009201924124U
Authority: CN
Inventors: 江蓉芝; 杨利
Original assignee: ZHEJIANG TWINSTAR TECHNOLOGIES Co Ltd
Current assignee: Broadex Technologies Co., Ltd.
Priority date: 2009-09-01
Filing date: 2009-09-01
Publication date: 2010-06-16
Anticipated expiration: 2019-09-01

Abstract

The utility model provides a lock pin for two-sided inserting which can realize high positioning accuracy of optical fiber and can be suitable for multi-fiber connection. The lock pin includes a substrate body placed with optical fibers, the lock pin includes a first end and a second end along the length direction of the substrate, the first end is a connection conjunction terminal structure connected with a first optical fiber device, the second end is a connection conjunction terminal structure connected to the second optical fiber device, and the first optical fiber connector is different from the second optical fiber connector. As adopting the technical scheme of the utility model, the butt-joint of the lock pin and the planar waveguide has more efficient and flexible in the production of PLCSplitter (planar optical waveguide splitter), simultaneously the facility is more easily to maintain and the construction and maintenance cost of the optical network can be largely reduce, thereby improving the economical efficiency of the communicating quality and communication.

Description

Be used for many fine two-sided patching that connect and use lock pin

Technical field

The utility model relates to a kind of two-sided patching that are applicable to that many fibres connect and uses lock pin.

Background technology

In recent years, optical communication worldwide obtains develop rapidly, especially Fiber to the home (FTTH) has universally satisfied the demand of people to telecommunication, video conference etc., people have higher requirement to the network bandwidth and speed simultaneously, make network to wideer bandwidth and faster rate development.

At present, FTTH has obtained large-scale commercialization and has presented bright development prospect in the international market, and the FTTH that many states build builds existing suitable scale and development at faster speed.As in Japan, Japanese government is considered as fiber-to-the-home popularity the advanced degree of national information, formulate and implement to build the strategy of hypervelocity network infrastructure, planned 2012, high speed inserts the internet will to make at least 3000 general-purpose families can use that Fiber to the home.Flourishing state such as the U.S. build also will Fiber to the home engineering build the extension of information highway strategy as state.Though the FTTH industry of China is started late, development in recent years is very quick, and especially in the capital construction of 2008 Olympic Games, the FTTH engineering is wherein focus especially.In such as each big cities such as Shanghai, the FTTH pilot project has all obtained success, and popularization on a large scale on this basis is just among like a raging fire.

Along with the investment orientation of optical communication develops to the direction of FTTH from communication main line, Metropolitan Area Network (MAN), LAN (Local Area Network), private, the utilization of the core devices of FTTH---optical branching device also presents blast situation.Optical branching device mainly contains two types: a kind of is fused biconical taper formula optical fiber splitter, and a kind of is the planar optical waveguide splitter (PLC Splitter) that adopts integrated optics technique to produce.The shunt function of planar optical waveguide splitter is to make various planar optical waveguides with integrated optics technology on the substrate of doing with materials such as potteries, the multichannel light fibre array of be coupled respectively at the two ends of chip then encapsulation input end and output terminal.Usually adopt epoxy glue to solidify between planar optical waveguide chip and the multichannel light fibre array.And fibre normally is with in the output of multichannel light fibre array, make flexible jumper commonly used at the end of every optical fiber again after leaving and taking certain length after the band fibre must separate in actual use, flexible jumper could be realized the fine transmission of band by corresponding adapter again or be connected with equipment.

In the manufacturing technology of existing planar optical waveguide splitter (PLC Splitter), the output terminal of planar optical waveguide must constitute non-disconnectable joint by adopting bonding agent with fiber array (FA), tail optical fiber behind the fiber array (FA) is made into flexible connection head commonly used, the exoergic realization is docked with ribbon fiber connector MPO (Multi-fiberPush On) or relevant device, thereby realizes the connection of light path.Owing to must have the optical fiber that has of the different length that determines by different service condition to flexibly connect the optical fiber of starting behind each fiber array, the product specification link cost that also makes of a great variety is increased more than the twice.Simultaneously, because planar optical waveguide and fiber array (FA) adopt bonding agent to constitute non-disconnectable joint, once arbitrary road optical fiber or slab guide occur unusual in the fiber array (FA), just the fiber array of whole planar optical waveguide splitter (PLC Splitter) and band wire jumper head must be changed, this not only rolls up maintenance cost, and maintenance construction becomes a hard work in the time of also.

In present optical network system, because with ribbon fiber connector MPO (Multi-fiber Push On) is the needs that the volume of new generation connector littler, that price is lower of representative has adapted to Optical Access Network and fiber-to-the-home front yard (FTTH), so the input and output side of planar optical waveguide splitter (PLC Splitter) all is ribbon fiber connector MPO usually.But the method for die forming has been used in the manufacturing of core devices lock pin among the ribbon fiber connector MPO on the market, relies on to lay pin in the mould and form the positioning optical waveguides on the how fine connector substrate and the hole of register pin.Thereby the position that can change pin makes the easy off-design requirement of formed pilot hole on the how fine connector substrate because fluid flows in mould, the skew of position when causing fiber alignment and cause the insertion loss; In addition, with hole positioning optical waveguides and register pin, the inevitable outer warp greater than optical fiber and register pin in its aperture causes optical fiber and register pin accurately to locate, and also can cause bigger insertion loss.In addition, the material that uses during mould molding is engineering plastics, and for improving performance, present way is to add silica flour in plastics, but the physical properties such as thermal expansivity of this composite material and fiber optic materials differ greatly, and make the loss of how fine joint be subjected to environmental change and bigger fluctuation is arranged.Simultaneously, because operating position ever-changing, and the input of mould needs a large amount of capitals, so present MPO manufacture method can't provide the connector that satisfies different fiber quantity and fiber core distance versatile and flexible.

Based on above several aspects, if a kind of connected mode that slab guide picks out and inserts that is applicable to easily flexibly can be provided, just when planar optical waveguide input and output, just can realize the fine transmission of band, that will advance the construction of optical-fiber network greatly.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of can realize how fine two-sided the patching that connect are used lock pin to high being applicable to of fiber orientation precision.For this reason, the utility model is by the following technical solutions: it comprises the substrate body of placing optical fiber, described lock pin is according to the length direction of substrate, have first end and the second end, described first end is the connection abutting end structure that first optical fibre device connects, described the second end is the connection abutting end structure that is connected with second optical fibre device, and first joints of optical fibre are different with second joints of optical fibre.Owing to adopt the technical solution of the utility model, it is efficient and flexibly that lock pin and docking of slab guide are had more, simultaneously when plant maintenance, be easy to safeguard and reduce significantly the construction and the maintenance cost of optical-fiber network more, thereby improve the economy of communication quality and communication.

Description of drawings

Fig. 1 is the synoptic diagram of a kind of structure of substrate body in the utility model.

Fig. 2 realizes the synoptic diagram of a kind of structure in first end and multifiber connector grafting, the second end and the implementation method of docking such as optical devices such as slab guides for the utility model.

Fig. 3 is the side view of first end after putting into register pin and optical fiber in the embodiment shown in Figure 2.

Fig. 4 is the end view drawing of the second end after putting into optical fiber in the embodiment shown in Figure 2.

Fig. 5 is the cut-open view of embodiment shown in Figure 2.

Embodiment

With reference to accompanying drawing 1,2.The utility model comprises substrate body 301, and the material of substrate body adopts pottery, glass or resin.The utility model is according to the length direction of substrate, have first end 201 and the second end 202, described first end is the connection cooperative end part structure that first optical fibre device connects, described the second end is the connection cooperative end part structure that is connected with second optical fibre device, optical fibre device is fibre-optical splice or optical fiber communication device, and first optical fibre device is different optical fibre devices with second optical fibre device; With the present embodiment is example, first optical fibre device is the how fine joint of standard, first end is for being connected the location to realize the mechanism of optic fibre light path conducting with the how fine joint of this standard of its coupling by register pin 304, second optical fibre device is a planar optical waveguide, and described the second end is made with planar optical waveguide and docked to realize the fiber array of optic fibre light path conducting.

Adopt mechanical means to carve two kinds of grooves on the substrate body surface, comprising some V-type grooves 302 for placement optical fiber, and at the V-type groove 303 of the placement positioning pin that is in outermost V-type groove 2 outsides, the left and right sides, about the spacing distance of two V-type grooves 303 consistent with the register pin patchhole spacing of described multifiber connector.

With reference to accompanying drawing 3.This figure is the side view of first end after putting into optical fiber and register pin.Be carved with the V-type groove 302 of placing optical fiber on the substrate body 301, the width of rebate of V-type groove 302 more than or equal to 0.15mm smaller or equal to 0.25mm, the drift angle D of V-type groove 302 more than or equal to 50 ° smaller or equal to 90 °, like this, after making optical fiber 305 put into V-type groove 302 and pushed down by fiber pressuring plate 306, optical fiber 305 is positioned under the substrate body surface 308 with the contact point of V-type groove 302; The width of rebate of V-type groove 303 more than or equal to 0.6mm smaller or equal to 1.0mm, the drift angle B of V-type groove 303 more than or equal to 50 ° smaller or equal to 90 °, like this, after making register pin 304 put into V-type groove 303 and push down by register pin pressing plate 309, register pin 304 is positioned under the substrate body surface 308 with the contact point of V-type groove 303, and register pin pressing plate 309 is on the fiber pressuring plate 306.

Spacing E between the V-type groove 302 be more than or equal to 125um smaller or equal to 300um, the quantitative range of V-type groove 302 is 1-128, can adjust flexibly as required, quantity is 8 in the present embodiment.

Be placed on that register pin in the V-type groove 303 is parallel to each other with the center line of optical fiber in being placed on V-type groove 302 and center line is parallel with the substrate body surface, center line apart from the distance on substrate body surface more than or equal to 0.015mm smaller or equal to 0.045mm, be 0.03mm at this implementation method middle distance.

With reference to accompanying drawing 2,4.In the present embodiment, the V-type groove 303 of putting register pin connects the part that is in the second end to substrate body from the part that substrate body is in first end always, promptly in Fig. 4, can see V-type groove 303, in practice, V-type groove 303 can only be engraved on the part of first end side of substrate body, promptly can't see V-type groove 303 and register pin 304 from Fig. 4.Optical fiber 305 is two end-views of a complete optical fiber among the optical fiber 305 that occurs in Fig. 4 and Fig. 3.In Fig. 4, substrate body is on the part of the second end to be pushed down by fiber pressuring plate 310.

With reference to accompanying drawing 5.Two

fiber pressuring plates

306 and 310 among this figure on the display base plate body 301 separate, in practice, two fiber pressuring plates also can be disjunctors, and whether no matter two

fiber pressuring plates

306 and 310 separate, and the thickness of fiber pressuring plate 310 is preferably more than or equal to the thickness of fiber pressuring plate 306.

Optical fiber 305 is put into the V-type groove 302 of substrate body, the V-type groove 303 that register pin 304 is put into substrate body, cover fiber pressuring plate 306,310 and register pin pressing plate 309 successively, blended rubber water bonds them mutually, the optical fiber of first end and the second end and end face are polished polishing, also can grind have a certain degree after again polishing use.The angle on the end face of first end and the second end and substrate body surface 308 can be 30 °-150 °.

In addition, the described two kinds of grooves that carve on the substrate body can be U-lag or arc groove also, and the V-type flute profile formula that is adopted is in the present embodiment located more accurate.

The foregoing description is only given an example in order to describe the utility model vividerly, is not the restriction to the utility model scope.For the general personnel in present technique field, can under situation that does not break away from spirit of the present utility model and scope, make many variations.Therefore, all technical schemes that are equal to also belong to protection domain of the present utility model.

Claims

1. be used for many fine two-sided patching that connect and use lock pin, it is characterized in that it comprises the substrate body of placing optical fiber, described lock pin is according to the length direction of substrate, have first end and the second end, described first end is the connection abutting end structure that first optical fibre device connects, described the second end is the connection abutting end structure that is connected with second optical fibre device, and first joints of optical fibre are different with second joints of optical fibre.

2. two-sided the patching that are used for many fine connections as claimed in claim 1 are used lock pin, it is characterized in that first end is to be connected the location with the how fine joint of the standard of its coupling to realize the mechanism of optic fibre light path conducting by register pin.

3. as claimed in claim 1 or 2ly be used for many fine two-sided patching that connect and use lock pin, it is characterized in that described the second end is made with optical fiber communication to dock fiber array with the conducting of realization optic fibre light path with device.

4. as claimed in claim 1 or 2ly be used for many fine two-sided patching that connect and use lock pin, it is characterized in that described the second end makes the fiber array that docks with planar optical waveguide with the conducting of realization optic fibre light path.

5. use lock pin as claim 3 or 4 described two-sided the patching that are used for many fine connections, it is characterized in that described substrate is provided with several first locating slots of placing optical fiber; First end one side in substrate body, in the outside that is in outermost first locating slot in the left and right sides, described substrate body is respectively equipped with second locating slot of placement positioning pin, be placed with register pin in second locating slot, how fine the spacing distance of second locating slot is consistent with the register pin patchhole spacing of described standard joint.

6. two-sided the patching that are used for many fine connections as claimed in claim 5 are used lock pin, and the groove number that it is characterized in that first locating slot of described placement optical fiber is the 1-128 bar.

7. two-sided the patching that are used for many fine connections as claimed in claim 5 are used lock pin, it is characterized in that described first locating slot and the second locating slot position are in the substrate body surface, the center line of the register pin of placing in the center line of the optical fiber of placing in described first locating slot, second locating slot is surperficial parallel with substrate.

8. two-sided the patching that are used for many fine connections as claimed in claim 5 are used lock pin, it is characterized in that it is in substrate body on the part of first end side and the second end side is respectively equipped with fiber pressuring plate, and be in substrate body on the part of first end side and also be provided with the register pin pressing plate, described register pin pressing plate is on the fiber pressuring plate of described first end side, bonds with cementing agent between substrate body, optical fiber, fiber pressuring plate, register pin pressing plate.

9. two-sided the patching that are used for many fine connections as claimed in claim 8 are used lock pin, it is characterized in that the fiber pressuring plate of the second end side and the fiber pressuring plate disjunctor or the split of first end side, the thickness of the fiber pressuring plate of the second end side equates with the thickness of the fiber pressuring plate of first end side or is thicker than the thickness of the fiber pressuring plate of first end side.

10. two-sided the patching that are used for many fine connections as claimed in claim 7 are used lock pin, it is characterized in that described first locating slot and second locating slot are V-shaped groove, the center line of described first locating slot apart from the distance on substrate body surface more than or equal to 0.015mm smaller or equal to 0.045mm; The width of rebate of first locating slot more than or equal to 0.15mm smaller or equal to 0.25mm, the drift angle of V-type groove (D) more than or equal to 50 ° smaller or equal to 90 °, the width of rebate of second locating slot more than or equal to 0.6mm smaller or equal to 1.0mm, the drift angle of V-type groove (B) more than or equal to 50 ° smaller or equal to 90 °.