CN211123355U

CN211123355U - Melt and draw multichannel fiber coupler

Info

Publication number: CN211123355U
Application number: CN202020027187.5U
Authority: CN
Inventors: 姚鑫; 刘再喜
Original assignee: Jinan Beijia Photoelectric Technology Co ltd
Current assignee: Jinan Beijia Photoelectric Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-07-28
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a melt-draw multi-path optical fiber coupler, which comprises a front optical fiber input end, a melt-draw coupling section connected with the rear end of the optical fiber input end, and an optical fiber output end connected with the rear end of the melt-draw coupling section; a substrate is connected to the outside of the fusion-drawing coupling section, a first sleeve is sleeved outside the substrate, two ends of the first sleeve are sealed by first sealant, a second sleeve is sleeved outside the first sleeve, and a heat absorption layer is filled between the first sleeve and the second sleeve; a third sleeve is sleeved outside the second sleeve, a shock absorption layer is filled between the second sleeve and the third sleeve, a fourth sleeve is sleeved outside the third sleeve, and second sealant is filled between the third sleeve and the fourth sleeve; the outer side of the fourth sleeve is sleeved with a fifth sleeve, third sealant is filled between the fourth sleeve and the fifth sleeve, and two ends of the fifth sleeve are connected with end covers through adapters. The coupler is high in applicability and good in sealing, heat dissipation and shock absorption effects.

Description

Melt and draw multichannel fiber coupler

Technical Field

The utility model belongs to the fiber coupler field of making, concretely relates to melt draws multichannel fiber coupler.

Background

The optical fiber coupler, also called splitter, connector, adapter, optical fiber flange, is an element for realizing optical signal splitting/combining or for extending optical fiber link, belongs to the field of optical passive element, and can be applied to telecommunication network, cable television network, user loop system and local area network. The optical fiber coupler is a device for detachable connection between optical fibers, and precisely butt-joints two end faces of the optical fibers so that light energy output by a transmitting optical fiber can be coupled into a receiving optical fiber to the maximum extent, and the optical fiber coupler is inserted into an optical link so as to minimize the influence on a system. Waveguide fiber couplers are generally devices having a Y-branch, which is used to divide the optical signal input by an optical fiber equally. When the open angle of the coupler branch is increased, light leaking into the cladding will increase to increase the excess loss, so the open angle is generally within 30 °, and therefore the length of the waveguide fiber coupler cannot be too short.

The optical fiber coupler is a core component in the field of optical fiber communication, and the use environment of the optical fiber coupler is relatively complex, so that the improvement of the stability and the reliability of the optical fiber coupler is a key research and development direction of manufacturers. The production and the equipment of relevant optical fiber coupler use the sealed glue of multilayer sleeve pipe with to guarantee the stability of coupler mostly, but the sleeve pipe is more often to produce complicatedly, seals also to make optical fiber coupler sealed not good many times, gets into steam easily, and the heat is difficult to scatter and disappear during the use, and the vibration produces great influence to the use of coupler easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a melt and draw multichannel fiber coupler, the shortcoming of above prior art can be overcome in the use of this equipment, and it is good to provide the leakproofness, and the high fiber coupler of heat absorption shock attenuation and stability.

In order to achieve the above object, the utility model provides a following technical scheme: a melt-draw multi-path optical fiber coupler comprises an optical fiber input end at the front end, wherein the rear end of the optical fiber input end is connected with a melt-draw coupling section, and the rear end of the melt-draw coupling section is connected with an optical fiber output end; a substrate is connected to the outside of the fusion-drawing coupling section, a first sleeve is sleeved on the outside of the substrate, two ends of the first sleeve are sealed by first sealant, a second sleeve is sleeved on the outside of the first sleeve, and a heat absorption layer is filled between the first sleeve and the second sleeve; a third sleeve is sleeved outside the second sleeve, a shock absorption layer is filled between the second sleeve and the third sleeve, a fourth sleeve is sleeved outside the third sleeve, and second sealant is filled between the third sleeve and the fourth sleeve; the outer side of the fourth sleeve is sleeved with a fifth sleeve, a third sealant is filled between the fourth sleeve and the fifth sleeve, and two ends of the fifth sleeve are connected with end covers through a switching body.

Preferably, a reinforcing plate is installed between the outer side of the base plate and the first sleeve.

Preferably, a drying layer is filled between the third sealing glue and the adaptor.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the optical fiber coupler has good sealing effect, is suitable for complex use environments, and reduces the influence of water vapor entering on use;

2. the optical fiber coupler has good use effect, has the functions of heat absorption and shock absorption, and improves the use stability of the optical fiber coupler.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is an overall view of the optical fiber coupler of the present invention;

in the figure: 1. the optical fiber connector comprises an optical fiber input end, 2, a fusion-draw coupling section, 3, an optical fiber output end, 4, a substrate, 5, a reinforcing plate, 6, a first sleeve, 7, first sealant, 8, a second sleeve, 9, a heat absorption layer, 10, a third sleeve, 11, a shock absorption layer, 12, a fourth sleeve, 13, second sealant, 14, a fifth sleeve, 15, third sealant, 16, a switching body, 17 and an end cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, the present invention provides a technical solution: a melting-pulling multi-path optical fiber coupler comprises an optical fiber input end 1 at the front end, a melting-pulling coupling section 2 connected with the rear end of the optical fiber input end, and an optical fiber output end 3 connected with the rear end of the melting-pulling coupling section; the external part of the fusion-drawing coupling section 2 is connected with a substrate 4, the external part of the substrate is sleeved with a first sleeve 6, two ends of the first sleeve are sealed by using first sealant 7, the external part of the first sleeve 6 is sleeved with a second sleeve 8, and a heat absorption layer 9 is filled between the first sleeve and the second sleeve; a third sleeve 10 is sleeved outside the second sleeve, a shock absorption layer 11 is filled between the second sleeve and the third sleeve, a fourth sleeve 12 is sleeved outside the third sleeve, and second sealant 13 is filled between the third sleeve and the fourth sleeve; the outside of the fourth sleeve is sleeved with a fifth sleeve 14, a third sealant 15 is filled between the fourth sleeve and the fifth sleeve, and two ends of the fifth sleeve are connected with end covers 17 through adapters 16. A reinforcing plate 5 is mounted between the outside of the base plate 4 and the first sleeve 6. A dry layer is filled between the third sealant 15 and the adaptor 16.

The optical fiber coupler is good in sealing effect due to the fact that the adapter body 16 is arranged, the third sealant can be epoxy glue or silica gel, and water vapor is further prevented from entering the optical fiber coupler after sealing, so that the optical fiber coupler cannot affect the use of optical fibers. The heat absorption layer 9 arranged between the second sleeve 8 and the third sleeve 10 can timely dissipate heat generated in the using process, and the damping layer 11 arranged between the third sleeve 10 and the fourth sleeve 12 enables the optical fiber coupler to have a damping effect and to be more suitable for various using environments.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fusion-drawn multi-path fiber coupler, comprising: the optical fiber coupler comprises an optical fiber input end (1) at the front end, the rear end of the optical fiber input end is connected with a fusion-pulling coupling section (2), and the rear end of the fusion-pulling coupling section is connected with an optical fiber output end (3); a substrate (4) is connected to the outside of the fusion-drawing coupling section (2), a first sleeve (6) is sleeved on the outside of the substrate, two ends of the first sleeve are sealed by first sealant (7), a second sleeve (8) is sleeved on the outside of the first sleeve (6), and a heat absorption layer (9) is filled between the first sleeve and the second sleeve; a third sleeve (10) is sleeved outside the second sleeve, a shock absorption layer (11) is filled between the second sleeve and the third sleeve, a fourth sleeve (12) is sleeved outside the third sleeve, and second sealant (13) is filled between the third sleeve and the fourth sleeve; the outer side of the fourth sleeve is sleeved with a fifth sleeve (14), a third sealant (15) is filled between the fourth sleeve and the fifth sleeve, and two ends of the fifth sleeve are connected with end covers (17) through adapters (16).

2. A fusion-drawn multi-fiber coupler according to claim 1, wherein: and a reinforcing plate (5) is arranged between the outer side of the base plate (4) and the first sleeve (6).

3. A fusion-drawn multi-fiber coupler according to claim 1, wherein: and a drying layer is filled between the third sealant (15) and the adapter body (16).