CN201681172U

CN201681172U - Wavelength division multiplexer

Info

Publication number: CN201681172U
Application number: CN200920260057XU
Authority: CN
Inventors: 郑云峰; 刘维灿; 狐龙; 薛亚红
Original assignee: O Net Communications Shenzhen Ltd
Current assignee: O Net Technologies Shenzhen Group Co Ltd
Priority date: 2009-11-05
Filing date: 2009-11-05
Publication date: 2010-12-22
Anticipated expiration: 2019-11-05

Abstract

The utility model discloses a wavelength division multiplexer which mainly comprises a WDM core member, a bushing and two external bushings, wherein the bushing is for accommodating the WDM core member, the external bushings comprise a connecting end and a feed hole end having a lead hole for fiber core wire arranged therein, each external bushing has, on the connecting end, a recessed circumferential surface extending in radial direction along the external bushings with the external diameter of the recessed part smaller than the inner diameter of the bushing, the two external bushings are connected to the both ends of the bushing respectively for protecting the WDM core member. By adopting said structure, the processing quantity of the structural member is lessened and the assembling process is simplified, thereby saving time and cost and improving the product yield rate.

Description

A kind of wavelength division multiplexer

Technical field

The utility model relates to a kind of wavelength division multiplexer, particularly relates to a kind of wavelength division multiplexer that can realize quick encapsulation.

Background technology

In optical communication system, wavelength division multiplexer (WDM) is with a series of carrying informations, but the different light signal of wavelength is synthetic a branch of, transmits along simple optical fiber; The communicator that again each wavelength optical signals is separated at receiving end.

Shown in Fig. 1 a and Fig. 1 b, for common wavelength division multiplexer is unkitted stereographic map and cut-open view when preparing; In the assembling process of wavelength division multiplexer, existing assembly technology is before this in the position gluing of WDM core members 11 stage casing, then sleeve pipe 13 is entangled WDM core members 11, at last smear glue at the external peripheral surface end of the link 131 of sleeve pipe 13, outer tube 15 is inserted, prop up up to described outer tube 15 till the stopper section 133 of sleeve pipe 13, the other end is handled by same steps as.

In whole assembling process; need gluing three times; the technology more complicated; and when after the position gluing of WDM core members 11 stage casing, entangling WDM core members 11 with sleeve pipe 13; be not easy to control glue consumption, because of the situation that too much causes glue to overflow with glue, so not only can waste glue through regular meeting; and can make and be stained with glue on the optical fiber, influence the performance of wavelength division multiplexer.

Summary of the invention

Given this, be necessary to provide a kind of and can realize the wavelength division multiplexer of encapsulation fast.

To achieve these goals; the utility model provides a kind of wavelength division multiplexer; comprise a WDM core members; a sleeve pipe and two outer tubes; described sleeve pipe is used for ccontaining this WDM core members; described outer tube comprises a link and a guide hole end; described guide hole end is provided with an optical fibre core bullport; the link of described outer tube has along the external peripheral surface of the depression of radially extending of outer tube; and the external diameter of this recessed portion is less than the internal diameter of described sleeve pipe; these two outer tubes are connected to the two ends of this sleeve pipe, are used to protect the WDM core members.

Wherein, preferred version is: the external diameter of described WDM core members is less than the internal diameter of described outer tube.

Wherein, preferred version is: between the inwall of the outer wall of WDM core members and sleeve pipe, form a gap, so that outer tube insert.

Wherein, preferred version is: fix by viscose glue between described WDM core members, sleeve pipe and two outer tubes.

Wherein, preferred version is: the optical fibre core bullport of the guide hole end of described outer tube is provided with a chamfering, is used to make things convenient for optical fiber to derive.

Wherein, preferred version is: described outer tube is provided with the stopper section, and this stopper section protrudes from the external peripheral surface of depression of the link of described outer tube, is used for conveniently fixing this outer tube.

Wherein, preferred version is: the end of the guide hole end of described outer tube is provided with buffer part, can be to the side direction pulling force of optical fiber capable soft buffering, prevent to bend the pulling force optical fiber that fractures.

Wherein, preferred version is: the link of described outer tube, guide hole end and buffer part are formed in one.

Wherein, preferred version is: described integrated outer tube is the rubber material.

Wherein, preferred version is: the length summation of the length of described WDM core members after less than described sleeve pipe and the assembling of two outer tubes.

Owing to adopted above-mentioned process structure on wavelength division multiplexer, the processing quantity and the packaging technology of the part that not only simplifies the structure in the process of assembling have been saved the time, have also saved the yield that production cost has improved product.

Description of drawings

Fig. 1 a is that common wavelength division multiplexer is unkitted the stereographic map when preparing.

Fig. 1 b is the cut-open view of common wavelength division multiplexer.

Fig. 2 a is the stereographic map of the wavelength division multiplexer of the utility model first embodiment.

Fig. 2 b is the cut-open view of the wavelength division multiplexer of the utility model first embodiment.

Fig. 2 c is the stereographic map of outer tube of the wavelength division multiplexer of the utility model first embodiment.

Fig. 3 a is the stereographic map of the wavelength division multiplexer of the utility model second embodiment.

Fig. 3 b is the cut-open view of the wavelength division multiplexer of the utility model second embodiment.

Fig. 3 c is the stereographic map of outer tube of the wavelength division multiplexer of the utility model second embodiment.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Shown in Fig. 2 a, Fig. 2 b and Fig. 2 c, be the stereographic map of the outer tube of stereographic map, cut-open view and the wavelength division multiplexer of the wavelength division multiplexer of the utility model first embodiment; This wavelength division multiplexer 20 is made up of 21, one sleeve pipes 23 of a WDM core members and two outer tubes (25,26), and described WDM core members 21 is put in this sleeve pipe 23, and the external diameter of this WDM core members 21 is less than the internal diameter of described sleeve pipe 23.Described sleeve pipe 23 is used to protect this WDM core members 21, described outer tube 25 comprises a link 251 and a guide hole end 253, described guide hole end 253 is provided with an optical fibre core bullport 255, this optical fibre core bullport 255 is provided with a chamfering 2551, be used to make things convenient for optical fiber 211 to derive, the link 251 of described outer tube 25 has along the external peripheral surface of the depression of radially extending of outer tube 25, and the external diameter of this recessed portion is less than the internal diameter of described sleeve pipe 23, external peripheral surface in this depression is provided with a stopper section 256 of protruding, this stopper section 256 forms a step with the external peripheral surface of this depression, is used for conveniently fixing this outer tube 25; These two outer tubes (25,26) are fixed in the two ends of this sleeve pipe 23 respectively by viscose glue, be used to protect WDM core members 21.

Because the external diameter of this WDM core members 21 is less than the internal diameter of described outer tube 25, and the external diameter of these link 251 recessed portions is less than the internal diameter of described sleeve pipe 23, between the inwall of the outer wall of WDM core members 21 and sleeve pipe 23, form the thickness size bigger space of a thickness size than outer tube 25 links 251 recessed portions, after being guaranteed that outer tube 25 inserts, fitting fully between WDM core members 21, sleeve pipe 23 and the outer tube 25 forms the sticking and area of excellent contact.

Described WDM core members 21 is a glass material; The material of sleeve pipe 23 and outer tube 25 is unrestricted, as long as can satisfy request for utilization.

During assembling, WDM core members 21 is passed sleeve pipe 23 be put in wherein, outside the two ends of WDM core members 21 protrude out this sleeve pipe 23; With the link 251 of outer tube 25 towards sleeve pipe 23, pass the guide hole end 253 of outer tube 25 with optical fiber 211, external peripheral surface end at the link 251 of outer tube 25 is smeared glue, outer tube 25 is inserted between the outer wall of WDM core members 21 and sleeve pipe 23 inwalls, prop up up to described sleeve pipe 23 till the stopper section 256 of outer tube 25, the other end is handled by same steps as.Assemble rear sleeve 23 and two outer tubes (25,26) are contained in entire WDM core members 21 wherein.

In whole process, only need gluing twice, just WDM core members 21, sleeve pipe 23 and two outer tubes 25 can be fixed by viscose glue.

Shown in Fig. 3 a, Fig. 3 b and Fig. 3 c, be the stereographic map of the outer tube of the stereographic map of the wavelength division multiplexer of the utility model second embodiment and cut-open view and wavelength division multiplexer; This wavelength division multiplexer 30 is made up of 31, one sleeve pipes 33 of a WDM core members and two outer tubes 35, and described WDM core members 31 is put in this sleeve pipe 33, and the external diameter of this WDM core members 31 is less than the internal diameter of described outer tube 35.Described sleeve pipe 33 is used to protect this WDM core members 31; described outer tube 35 is one-body molded by the rubber material; this outer tube 35 comprises a link 351, a guide hole end 357 and a buffer part 353; described guide hole end 357 is provided with an optical fibre core bullport 355; this optical fibre core bullport 355 is provided with a chamfering 3551; be used to make things convenient for optical fiber 311 to derive, this guide hole end 357 also is connected with a buffer part 353, can carry out the better protection effect to the side direction pulling force of optical fiber 311.The link 351 of described outer tube 35 has along the external peripheral surface of the depression of radially extending of outer tube 35, and the external diameter of this recessed portion is less than the internal diameter of described sleeve pipe 33, external peripheral surface in this depression is provided with a stopper section 356 of protruding, and is used for conveniently fixing this outer tube 35; These two outer tubes (35,36) are fixed in the two ends of this sleeve pipe 33 respectively by viscose glue, be used to protect WDM core members 31.

Because the external diameter of this WDM core members 31 is less than the internal diameter of described outer tube 35, and the external diameter of this recessed portion is less than the internal diameter of described sleeve pipe 33, between the inwall of the outer wall of WDM core members 31 and sleeve pipe 33, form the thickness size bigger space of a thickness size than outer tube 35 links 351 recessed portions, after being guaranteed that outer tube 35 inserts, fitting fully between WDM core members 31, sleeve pipe 33 and the outer tube 35 forms the sticking and area of excellent contact.

Described WDM core members 31 is a glass material; The material of sleeve pipe 33 and outer tube 35 is unrestricted, as long as can satisfy request for utilization.

During assembling, WDM core members 31 is passed sleeve pipe 33 be put in wherein; With the link 351 of outer tube 35 towards sleeve pipe 33, pass the guide hole end 357 of outer tube 35 with optical fiber 311, external peripheral surface end at the link 351 of outer tube 35 is smeared glue, outer tube 35 is inserted between the outer wall of WDM core members 31 and sleeve pipe 33 inwalls, prop up up to described sleeve pipe 33 till the stopper section 356 of outer tube 35, the other end is handled by same steps as.Assemble rear sleeve 33 and two outer tubes (35,36) are contained in entire WDM core members 31 wherein.

In whole process, only need some glue twice, just WDM core members 31, sleeve pipe 33 and two outer tubes 35 can be fixed by viscose glue.

Although specifically introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.

Claims

1. wavelength division multiplexer; comprise a WDM core members; a sleeve pipe and two outer tubes; described sleeve pipe is used for ccontaining this WDM core members; described outer tube comprises a link and a guide hole end; described guide hole end is provided with an optical fibre core bullport; it is characterized in that: the link of described outer tube has along the external peripheral surface of the depression of radially extending of outer tube; and the external diameter of this recessed portion is less than the internal diameter of described sleeve pipe; these two outer tubes are connected to the two ends of this sleeve pipe, are used to protect the WDM core members.

2. wavelength division multiplexer as claimed in claim 1 is characterized in that: the external diameter of described WDM core members is less than the internal diameter of described outer tube.

3. wavelength division multiplexer as claimed in claim 1 is characterized in that: between the inwall of the outer wall of WDM core members and sleeve pipe, form a gap, so that outer tube insert.

4. wavelength division multiplexer as claimed in claim 1 is characterized in that: fix by viscose glue between described WDM core members, sleeve pipe and two outer tubes.

5. wavelength division multiplexer as claimed in claim 1 is characterized in that: the optical fibre core bullport of the guide hole end of described outer tube is provided with a chamfering, is used to make things convenient for optical fiber to derive.

6. wavelength division multiplexer as claimed in claim 1 is characterized in that: described outer tube is provided with the stopper section, and this stopper section protrudes from the external peripheral surface of depression of the link of described outer tube, is used for conveniently fixing this outer tube.

7. wavelength division multiplexer as claimed in claim 1 is characterized in that: the guide hole end of described outer tube is provided with buffer part, can be to the side direction pulling force of optical fiber capable soft buffering, prevent to bend the pulling force optical fiber that fractures.

8. wavelength division multiplexer as claimed in claim 1 is characterized in that: the link of described outer tube, guide hole end and buffer part are formed in one.

9. wavelength division multiplexer as claimed in claim 8 is characterized in that: described integrated outer tube is the rubber material.

10. wavelength division multiplexer as claimed in claim 1 is characterized in that: the length summation of the length of described WDM core members after less than described sleeve pipe and the assembling of two outer tubes.