Split type MT-FA optical fiber device

Abstract

The utility model provides a split type MT-FA optical fiber device. The split type MT-FA optical fiber device comprises an MPO optical port assembly, a transmitting end FA assembly and a receiving end FA assembly, wherein the transmitting end FA assembly and the receiving end FA assembly are respectively connected with the MPO optical port assembly through optical fibers; the split type MT-FA optical fiber device further comprises an MT connector. The MT connector comprises an MT port assembly and a connector which are detachably connected. The MT connector is connected between the MPO optical port assembly and the transmitting end FA assembly or between the MPO optical port assembly and the receiving end FA assembly through an optical fiber. Compared with the prior art that the TX end and the RX end of the integrated MT-FA assembly cannot be separated, the MT connector has the advantages that the MT port assembly and the connector of the second part in the MT connector can be detached, so that the coupling process of the TX end and the coupling process of the RX end can be completely separated, the difficulty of the TX / RX FA coupling process can be reduced, the manufacturing cost can be reduced, and the process reliability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical communication device technical field especially relates to a split type MT-FA optical fiber device. BACKGROUND

[0002] For the current industry DR series high-speed optical module (such as 400G DR4, 800G DR8, etc.), the most commonly used optical port standard is MPO (Multi-fiber Push On) scheme, such as 400G DR4 MPO12, 800G DR8 MPO16 / 2*MPO12, etc. For the DR module of MPO optical port scheme, the optical port of the internal device is MT structure, since the industry standard specifies full channel 1310nm wavelength, it is destined that various MUX / DeMUX designs cannot be used for multiplexing / demultiplexing of each channel, and only the scheme of multi-core optical fiber (fiber array, FA) can be used to complete the coupling of the device and the optical port, and the core components needed are MT-FA optical fiber components.

[0003] Figure 1 The MT-8FA component shown is a typical MT-8FA component, the MT of the component is connected with 4-core transmitting (TX) FA and receiving (RX) FA respectively, and the following problems can be caused in the use process: (1) large process implementation difficulty: no matter whether TX FA or RX FA is coupled first, the protection of the other party must be considered during the coupling process, because the optical fiber end face is easy to be contaminated and damaged; when one party is coupled and the other party is not coupled, the party that is not coupled must consider the protection of the device or the fixation of the uncoupled FA, otherwise the uncoupled FA can easily cause damage to the fragile device during the turnover or process; when one party is coupled and the coupling of the other party is about to be implemented, since the entire MT-FA component is fixed on the device, the physical space left for the process of the uncoupled FA is extremely limited, and the pulling of the optical fiber can also greatly affect the automatic identification and picking of the material; (2) increased manufacturing cost: TX FA and RX FA are connected on the same MT, if one party has a problem during the entire device process, the entire component needs to be reworked, so the yield of TX and RX is affected, resulting in increased manufacturing cost; (3) decreased device reliability: TX FA and RX FA are connected on the same MT, and there is a pulling stress between them, whether it is for the process or for the long-term reliability after completion, both FAs have the risk of micro-displacement and device failure. UTILITY MODEL CONTENTS

[0004] Based on the problems in the prior art, the utility model aims at solving the technical problems that the TX FA and the RX FA are connected on the same MT in the MT-FA assembly, and are a whole respectively, which leads to the problems of high difficulty in process implementation, increased manufacturing cost and decreased reliability of the device.

[0005] The utility model provides a split type MT-FA optical fiber device, it includes MPO optical port subassembly and respectively through optical fiber with the MPO optical port subassembly connection transmitting end FA subassembly and receiving end FA subassembly, the split type MT-FA optical fiber device still includes MT connector, the MT connector includes detachable connection MT port subassembly and connecting head,

[0006] The MPO optical port subassembly and the transmitting end FA subassembly, or the MPO optical port subassembly and the receiving end FA subassembly, are connected with the MT connector through optical fiber.

[0007] According to an embodiment of the utility model, the MT port subassembly and the connecting head are detachably connected in the way of plugging to realize the transmission of optical signal.

[0008] According to an embodiment of the utility model, the MT port subassembly is a pair of MT ports, and the connecting head has a pair of guide needles matched with the MT ports.

[0009] According to an embodiment of the utility model, the length of the split type MT-FA optical fiber device is 30-60mm.

[0010] According to an embodiment of the utility model, the optical fiber length between any two adjacent ones of the MPO optical port subassembly, the transmitting end FA subassembly, the receiving end FA subassembly and the MT connector is not less than 10mm.

[0011] According to an embodiment of the utility model, the MT connector is a standard MT connector or a MINI MT connector.

[0012] The utility model has the advantages of:

[0013] The utility model provides a kind of split type MT-FA optical fiber device, between the MPO optical port component with the transmitting end FA component, or between the MPO optical port component with the receiving end FA component, the MT connector is connected with the optical fiber, so that the scheme is used in DR series device process, the coupling process of TX end and RX end is completely separated, on the one hand, process difficulty can be reduced, when coupling one party, without considering the other party and device collision to cause FA / device to produce the problem of dirt / damage;After one party coupling, the coupling of the other party will not be distracted, and coupling process and material identification, picking process will not be distracted and limited;On the other hand, manufacturing cost can be reduced, TX / RX FA is no longer integrated, when reworking, only one party needs to be reworked, without overall reworking, avoid repeated coupling, save working hours, while yield is no longer interrelated, and yield can be improved, so that manufacturing cost can be reduced;In addition, process reliability is also improved, and the coupling displacement possibility is reduced in the process. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is the structure diagram of the integrated MT-8 FA component in the prior art;

[0016] Figure 2 It is the structure diagram of the split type MT-FA optical fiber device provided by the utility model embodiment;

[0017] Figure 3 It is the state diagram of the split type MT-FA optical fiber device and circuit board connection provided by the utility model embodiment;

[0018] Reference signs: 1-MPO optical port component;2-transmitting end FA component;3-receiving end FA component;4-MT connector;41-MT port component;42-connection head. DETAILED DESCRIPTION

[0019] The following description of each embodiment is with reference to the additional drawings, which illustrate specific embodiments that the utility model can be used to implement.

[0020] The utility model provides a kind of split type MT-FA optical fiber device, its structure is as Figure 2As shown, it includes an MPO optical port assembly 1 and a transmitter FA assembly 2 and a receiver FA assembly 3, which are respectively connected to the MPO optical port assembly 1 via optical fibers; the split MT-FA optical fiber device also includes an MT connector 4, which includes a detachably connected MT port assembly 41 and a connector 42.

[0021] The MT connector 4 is connected by an optical fiber between the MPO optical port assembly 1 and the transmitting end FA assembly 2, or between the MPO optical port assembly 1 and the receiving end FA assembly 3.

[0022] In the split-type MT-FA fiber optic device provided by this utility model, the MT connector 4 is connected by optical fiber between the MPO optical port assembly 1 and the transmitting FA assembly 2, or between the MPO optical port assembly 1 and the receiving FA assembly 3. This allows the coupling process of the TX and RX ends to be completely separated when the solution is used in the DR series device process. On the one hand, it can reduce the process difficulty. When one side is coupled, there is no need to consider the problem of the other side colliding with the device and causing dirt / damage to the FA / device. After one side is coupled, the coupling of the other side will not be affected. The coupling process, as well as the material identification and picking process, will not be affected or restricted. On the other hand, it can reduce manufacturing costs. The TX / RX FA is no longer integrated. When reworking, only one side needs to be reworked, without the need for overall rework. This avoids repeated coupling, saves time, and the yield is no longer related to each other, which can improve the yield and reduce manufacturing costs. In addition, the process reliability is also improved. The two are no longer involved in the process, reducing the possibility of coupling displacement.

[0023] Please continue to refer to Figure 2 According to one embodiment of the present invention, the MT connector 4 is disposed between the MPO optical port assembly 1 and the receiver FA assembly 3, wherein the MPO optical port assembly 1 is connected to the MT port assembly 41 via an optical fiber, and the receiver FA assembly 3 is connected to the connector 42 via an optical fiber.

[0024] Specifically, the MT port assembly 41 and the connector 42 are detachably connected via a plug-in connection to enable optical signal transmission. In a specific embodiment, the MT port assembly 41 is a pair of standard MT ports (determined by the DR4 module industry standard), and the connector 42 has a pair of guide pins that match the MT ports. These guide pins can be inserted into the corresponding MT ports to enable optical signal transmission.

[0025] It should be noted that the MT port assembly 41 and the connector 42 are detachably connected in a plug-in manner, which is only a preferred embodiment of the present application, and does not limit the detachable connection manner of the MT port assembly 41 and the connector 42, and in other embodiments, the MT port assembly 41 and the connector 42 can also be detachably connected by other forms (such as clamping, threaded connection, etc.).

[0026] According to an embodiment of the present application, the length of the split MT-FA optical fiber device is 30-60mm. In order to prevent the pulling stress of the optical fiber from being too large when TX / RX FA is coupled, the length of the optical fiber between any two adjacent ones of the MPO optical port assembly 1, the transmitting end FA assembly 2, the receiving end FA assembly 3 and the MT connector 4 is not less than 10mm. Further, the MT connector 4 is a standard MT connector or a MINI MT connector, and the total length of the MT connector is about 7-20mm, and at the same time, the MT connector has strong universality and can be applied to MT-FA assemblies of various types and specifications.

[0027] In order to facilitate understanding of the present application, the following will be described in combination with Figure 3 The working principle of the present application will be described in detail:

[0028] As Figure 3 shown is a state diagram of the split MT-FA optical fiber device connected with an external circuit board, in use, the MT port assembly 41 and the connector 42 are separated, the split MT-FA optical fiber device is divided into two disconnected parts, the first part is the transmitting end FA assembly 2, the MPO optical port assembly 1 and the MT port assembly 41 connected in sequence through optical fibers, and the second part is the receiving end FA assembly 3 and the connector 42 connected through optical fibers, and the first part and the second part can be respectively used for RX / TX coupling process and testing, and if one part is defective in the process, only the part needs to be reworked. After the processes of the two parts are completed, the MT port assembly 41 of the first part and the connector 42 of the second part are butted, and the whole MT-FA assembly related process is completed.

[0029] In summary, compared with the TX end and the RX end of the integrated MT-FA assembly in the prior art which cannot be separated, the split MT-FA optical fiber device provided by the present application can detach the MT port assembly 41 in the MT connector 4 and the connector 42 of the second part in the coupling process, so as to completely separate the coupling process of the TX end and the RX end, thereby reducing the difficulty of the TX / RX FA coupling process, reducing the manufacturing cost and improving the process reliability.

[0030] It needs to be explained that although the utility model discloses the above with specific embodiment, the above embodiment is not used to limit the utility model, and the ordinary skilled person in the art can make various changes and refinements without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model is defined with the claim range.

Claims

1. A split type MT-FA optical fiber device comprising an MPO optical port assembly (1) and a transmitting end FA assembly (2) and a receiving end FA assembly (3) connected to the MPO optical port assembly (1) respectively through optical fibers, characterized in that, Also comprising an MT connector (4) comprising a detachably connected MT port assembly (41) and a connector head (42); The MPO optical port assembly (1) and the transmitting end FA assembly (2), or the MPO optical port assembly (1) and the receiving end FA assembly (3) are connected by an optical fiber.

2. The split MT-FA fiber device of claim 1, wherein, The MT port assembly (41) and the connector head (42) are detachably connected in a plug-in manner to realize the transmission of optical signals.

3. The split MT-FA fiber device of claim 2, wherein, The MT port assembly (41) is a pair of MT ports, and the connector head (42) has a pair of guide needles matched with the MT ports.

4. The split MT-FA fiber device of claim 1, wherein, The length of the split MT-FA optical fiber device is 30-60 mm.

5. The split MT-FA fiber device of claim 4, wherein, The optical fiber length between any two adjacent ones of the MPO optical port assembly (1), the transmitting end FA assembly (2), the receiving end FA assembly (3) and the MT connector (4) is not less than 10 mm.

6. The split MT-FA fiber device of claim 4, wherein, The MT connector (4) is a standard MT connector or a MINI MT connector.

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