TW594092B - Fiber connector and its related manufacturing methods for connecting a single-mode fiber - Google Patents

Abstract

A fiber connector and its related manufacturing methods for connecting a single-mode fiber. The fiber connector includes two steel sleeves respectively disposed at two sides of the fiber connector for connecting a fiber stub and an optical fiber, and a C-type ceramic sleeve disposed inside the two sleeves for clamping the fiber stub and the fiber concentrically. The manufacturing methods include: pressing the fiber tightly inside the first sleeve; pressing the C-type ceramic sleeve into the fiber stub; placing a second sleeve onto the first sleeve and making a predesigned clearance between the first and second sleeves; utilizing a barrel of the optical cable as a jig which to be put inside the second sleeve and the C-type ceramic sleeve and then filling the clearance with an adhesive epoxy; performing a baking process for the fiber connector under a high temperature; and then pulling out the jig to complete the manufacturing process.

Description

594092 V. Description of the invention (1) [Field of invention]: The present invention provides an optical fiber connector (fiberc0nnect〇r) for an optical transceiver / module (optical transceiver / module), especially a Optical fiber connector with function of aligning and positioning single fiber (single fiber) and related manufacturing method. [Background note]:… In recent years, optical fiber communication technology has made great progress in all aspects, because light waves have higher frequencies for radio waves. Therefore, a system using light as a signal carrier can obtain extremely wide bandwidth, and can transmit a large amount of data: In terms of the distance of transmitting the optical signal carrier, optical fibers can be divided into single-chip (slngie-mode) Optical fiber and multi-mode fiber, single-mode fiber ^ core is usually less than 9 P for long-distance transmission, and for multi-mode light, core is usually less than 5 ° # for short-distance transmission. Of its purpose. Therefore, the so-called optical fiber communication technology can be said to be the main goal of the industry's eager research and development. The optical fiber communication system includes an optical transceiver module and specifically

Optical fiber cable, and the optical transceiver module is provided with -optical fiber connector ^ = ς ς = fiber cable. Please refer to Figure 1 and Figure-. Figure 1 01-1 Feng I knows that the optical fiber connector of the early-mode optical fiber transceiver module 1 is hard to see. Fig. 焱 闾, τ, < External view garden 131-is a side view of the optical fiber connector 10 in Fig. 1 along the line 2-2. As shown in FIG. 2 and FIG. 2 #, the optical fiber connector i includes two first and second sleeves 12 and 14 made of two stainless steel materials, which are respectively disposed on both sides of the optical fiber connector 10, and a type C. Pottery ring 16

594092 V. Description of the invention (2) 2 ~ the inside of the sleeve 12 and the second sleeve 14. The first sleeve 2 is used for accommodating a fixed optical cable 22 containing a single-mode optical fiber 24, and the second sleeve 14 is used for accommodating a light guide cable 26 containing another optical fiber 28. In addition, the c-shaped ceramic race collar 16 is used to tightly clamp the fixed optical cable 22 and the optical guide cable 26 so that one end of the optical guide cable 26 is configured to be engaged with the fixed optical cable 22 and the other end of the fixed optical mirror 22 It is connected to the inside of a single-mode fiber optical transceiver module (not shown), and the other end of the light guide winding 26 is connected to the single-mode fiber cable. In other words =, through the optical fiber connector 10, the light can be guided between the single-mode optical fiber light emitting module and the external optical fiber network. Please refer to FIG. 3, which is an assembly diagram of the optical fiber connector 10 process Illustration. As shown in FIG. 3, the manufacturing process of conventionally assembled optical fiber connector 丨 0 is as follows: Step 100: Press the fixed optical cable 22 tightly into the first sleeve 12; Step 102: Press the C-type ceramic ferrule 16 & quot The ground is arranged on the fixed optical cable 22; the way of inserting is tight ... The second sleeve 14 is tightly arranged on the first ST in a press-fit manner at step 106: the assembly of the optical fiber connector io is completed. After the assembly process of C1110, C1110, the fiber optic connector manufacturing K "Z dual use" and the optical fiber cable 26 inserted into the second grabber tube 14 of the optical fiber connector 10 and sandwiched in the c-type ceramic guide roll! Β J ^ In the set of the optical fiber 24 I #, the optical fiber 28 in the fixed optical cable 22 guide 26 can be joined in a concentric manner, so that the core of the optical fiber 24 and the core of the optical fiber 28 can be formed.

594092 V. Description of the invention (3) Form an optical path to transmit optical signals. If the optical fiber 24 of the fixed optical cable 22 and the optical fiber 26 of the light guide cable 26 can be concentrically arranged, the single cable connection can be conveyed via the optical fiber and wlG. Or receive optical signal carrier. However, it is known that due to the precision of the components on the optical fiber connector 10, the fiber 2 = the coupling optical efficiency of the connector 10 becomes worse, that is, the core of the optical fiber 24 affects the overall signal transmission efficiency on the optical fiber system: ”Phenomenon,: ^: Figure ㈣, Figure 4 is when the first sleeve U = of the fiber optic connector is insufficient, the side of the fiber optic connector after assembly along the section line 4_4 = :: :(, not when the first The accuracy of the joint between the core Γ12 and the second sleeve 14 due to poor quasi-press bonding or mechanical processing. After the assembly process of the optical fiber connector 10 described above, a set of optical fibers 24 and 28 will not fall on the same.丄 ^ The phenomenon of eccentricity makes the transmission efficiency of fiber optic tfi system. ,,,, and so will affect the entire [invention purpose]: Therefore, 'the present invention provides an optical fiber connector with a right? The transceiver of an early-core optical fiber can be connected via this fiber]: = = Fiber optic light achieves the purpose of accurately transmitting a large number of optical signal carriers 5. Hai early-right optical fiber connection is based on η Page 7 594092

[Detailed description of the invention] FIG. 5 is a sectional view of the invention. As shown in Figure 5-the first sleeve made by the fiber connector 50 along the direction of the optical signal carrier transmission wheel = the disk i fiber connector 50 includes two sides of two non-recorded steel materials 50, and The sleeves 54 are respectively provided inside the optical fiber connector sleeve 54. The first-state mandrel ring 56 is fixed to the first sleeve 52 and the second fiber 64. The light guide sleeve 54 is used for the placement of the light guide sleeve 54 containing the single-mode optical fiber 68. Receiving-contains another optical fiber "special feature of the present invention. The optical fiber 68 of 66 can also be another-single mode smaller than the outer diameter of the first sleeve 53 of the second sleeve 54 of the second sleeve 54 between the second sleeve 54 Keeping the inner diameter 'makes the distance between the first sleeve ㈣ and the sleeve 52 and the second sleeve f4;, so it can be connected to the first (-CDW) and filled with an adhesive 52 and the second sleeve 54. Details: The adhesive is used to fix the outer sleeve. For the C-type pottery preparation steps and methods, please refer to the following description. The clamps are used here to make the light tightly fix the winding 62 and the light guide 66. The end of 66 will be closely connected with the fixed optical cable 62. Refer to Figure 6 and Figure 6 for the assembly process diagram of the present invention. As shown in Fig.--Π / 10, condition% < Grab step 12 (Γ :: door 'assembled optical fiber connector 50. The manufacturing process is as follows: Step two · L f light, Wei tightly pressed to match the end of the ceramic ring 56 to press the Way tightly Configured on the fixed optical cable 62;

Page 8594092 V. Description of the invention (5) Step m • Place the second sleeve 54 on the first sleeve 52 and the C-shaped ceramic collar 56 without tightly fitting, so that the first sleeve 52 There will be a predetermined gap 60 between the two sleeves 54. ”Step 1 2 6 • Insert a C plastic ceramic sleeve with a fixture (not shown) of the same type as Beta Twilight β β 〇 You ^ See 66 Inside the ring 56; step 128: fill the gap 60 with an adhesive in the gap 60 between the first sleeve + ^ preparation 52 and the second sleeve 54; step 130: place the optical fiber connector 50 Baking at a preset high temperature 'to allow the adhesive to cure and produce a cementation effect with the first 5; Π 4 step 132: remove the fixture of the same type as the optical fiber cable 66; step 134: complete the optical fiber connection The manufacturing process of the connector 50. From the above manufacturing process of the optical connector 50, it can be known that the manufacturer of the optical connector can also use a fixture of the same type as the fixed optical cable 62 to be inserted into the first sleeve 52 of the optical connector 50 and The C-type ceramic ferrule 56 is closely disposed between the optical cable 62 and the first sleeve 52. The present invention is characterized in that the second sleeve 54 does not start with It is placed on the first sleeve 52 and the C-shaped ceramic collar 56 in a close fit manner. Since the outer diameter of the first collar 53 of the first sleeve 52 is designed to be smaller than the second collar of the second sleeve 54 Inner diameter of 55, so when the first sleeve 52 and the second sleeve 54 are engaged, a gap 60 will be left between the first sleeve 52 and the second sleeve 54. After that, a light guide is used again. The same fixture of the cable 6 6 is inserted into the second sleeve 54 and the C-shaped ceramic ferrule 56, so that the light guide cable fixture and the fixed optical fiber 6 2 can be clamped and arranged on the C-type ceramic ferrule concentrically. 5 within 6. Therefore,

594092 V. Description of the invention (6) Step 126 is to correct the problem of poor accuracy or insufficient concentricity of the first sleeve 52 and the second sleeve 54 on the optical fiber connector 50 in the manufacturing day guard ^ . Next, perform steps 丨 28 to 丨 32 to fill the gap 6 with an adhesive that will cure at high temperature, and place the optical fiber connector 50 at a preset high-temperature factory fire and roast to obtain the first set. The shapes of the barrel 5 2 and the second sleeve 54 are fixed. After baking I ^ ^ The fixture of the optical cable is removed, and the optical fiber connector 50 is completed. For example, when the optical fiber cable 66 is inserted into the second sleeve 54 by the user, the optical fiber 64 of the fixed optical cable 62 in the light guide 俨 fit tube 52 and the square fiber in the second sleeve 54 can be used. The positions are concentric, and the optical fiber 64 and the optical fiber 68 are also joined with a concentric precision, so that a precise route can be formed between the two optical fibers 64 and 68 to transmit optical signals. Connecting piano] ^ 1 ί technology, the optical fiber connector 50 of the present invention and the conventional optical fiber-the second set = large: the same is that the optical fiber connector 50 of the present invention does not use precision between the two sleeves 54 The tight fit is fixed to one: fixed, ㈣, and reused-adhesive to process the two sleeves with an accuracy of not less than t. Therefore, the difference between the two sleeves due to high optical fiber quality can be avoided in the conventional technology. Improve performance. The overall transmission of the light and sense transmission system, as described above, is only the equivalent sinus of the preferred sinus of the present invention. For example, where the scope of the application is covered according to the present invention.一 ^ Decoration ’white should belong to the patent of the present invention

Page 10594092 Simple illustration of the diagram Γ Simple illustration of the diagram] • Figure 1 is a conventional single-mode fiber; also the transmission and loss: Group. Outside view of the optical fiber connector. 0 Figure 2 is a sectional view of the optical fiber connector in Figure 1.丨 Side view of lines 2-2. Figure 3 is the assembly of the fiber optic connector of Figure 1: Flow chart. Figure 4 shows the optical fiber connector when the first-sleeve of the conventional optical fiber connector has insufficient manufacturing accuracy; Fig. 5 is a cross-sectional view of the optical fiber connector of the present invention along the light > signal > carrier transmission direction. Fig. 6 is an assembly of the present invention; electrical fiber connector "flow chart. [Symbol description of the icon] 10 50 optical fiber Connector 12 52 First sleeve 14 54 Second sleeve 16 56C type ceramic ferrule 53 First ring 55 Second ring 22 \ 62 Fixed optical cable 24 28 ^ 6 4, 6 8 Optical fiber 26 66 Optical fiber cable 60 Clearance

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Claims (1)

594092 6. Scope of patent application The agent is a kind of glue which is cured at high temperature and will be cemented with metal materials. 5.—A fiber optic connector (fiber c0nnectQr) for an optoelectronic transceiver / module (optic cal transceiver / module) and a related manufacturing method, the fiber optic connector includes a first optical fiber connector having a first loop A sleeve is provided at one end of the optical fiber connector to receive a fiber stub containing a fiber therein, and a second sleeve having a second collar is provided at the end The other end of the optical fiber connector is used for accommodating an optical fiber cable containing another optical fiber, and a C-shaped collar is provided inside the first sleeve and the second sleeve for the optical fiber cable and the optical fiber cable. Wrapped. The outer diameter of the first ferrule is smaller than the outer diameter of the second ferrule, and the inner diameter of the C-shaped ferrule is slightly smaller than the diameter of the optical cable and the optical fiber cable. The manufacturing method includes: The fixture is tightly housed in the first sleeve; the C-shaped collar is pressed into the fixture of the optical cable, so that the C-shaped collar is disposed exactly on the first sleeve and the first sleeve The second sleeve is arranged on the first sleeve such that the second sleeve of the second sleeve and the first sleeve of the first sleeve A predetermined gap is left; a fixture using a light guide cable is inserted into the second sleeve and the C-shaped collar, so that the C-shaped collar is disposed between the second sleeve and the fixture of the light guide cable ; And add an adhesive to the gap to fill the gap, and then place the fiber optic connector at a preset high temperature. 0 594092 _Case No. 91112473_ Year Modified_ VI. Patent Application Scope 6. The fiber optic connector described in item 5 of the patent application scope, wherein the optical fiber is a single-mode fiber. 7. The optical fiber connector and the manufacturing method thereof according to item 6 of the scope of the patent application, wherein the C-shaped ferrule is made of a ceramic material with a slight elasticity. 8. The optical fiber connector and manufacturing method thereof as described in item 7 of the scope of the patent application, wherein the inner diameter of the C-shaped ring is slightly smaller than the diameter of the fixed optical cable and the optical waveguide. 9. The optical fiber connector and its manufacturer as described in item 5 of the scope of patent application The method wherein the first sleeve and the second sleeve are made of iron-containing materials such as stainless steel. 10. The optical fiber connector and manufacturing method thereof according to item 9 of the scope of patent application, wherein the first sleeve includes a first collar and the second sleeve includes a second collar, the first collar The outer diameter is smaller than the outer diameter of the second collar, so that the adhesive is placed between the joint of the first sleeve and the second sleeve. 1 1. The manufacturing method as described in item 9 of the scope of patent application, wherein the adhesive is a glue-like substance which is cured at high temperature and will be cemented with metal materials. Page 16