CN215728944U

CN215728944U - Transmission reflection optical device with front support sleeve

Info

Publication number: CN215728944U
Application number: CN202122418623.9U
Authority: CN
Inventors: 徐秋霜; 潘晓晓
Original assignee: Shenzhen Dongyan Communication Technology Co ltd
Current assignee: Shenzhen Dongyan Communication Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-02-01
Anticipated expiration: 2031-10-08

Abstract

The utility model provides a transmission and reflection light device with a front support sleeve, which comprises an outer seal pipe, the front support sleeve positioned in the outer seal pipe, and a transflective component, a self-focusing lens and an optical fiber fixing component which are sequentially connected along the axial direction of the outer seal pipe; the front support sleeve is sleeved outside the self-focusing lens; the optical axes of the transflective component and the self-focusing lens are positioned on the same straight line or parallel; the optical fiber fixing member fixes an input optical fiber and an output optical fiber therein. The front support sleeve has a support effect on the self-focusing lens, so that the connection stability of the self-focusing lens and the light transmitting and reflecting component is improved; the transflective component is not obliquely arranged any more, and the axial emergent angle of the transmitted light beam of the transflective component can be corrected by combining the guiding effect of the front support sleeve on the self-focusing lens, so that the receiving/transmitting efficiency of the transmitted light beam is improved.

Description

Transmission reflection optical device with front support sleeve

Technical Field

The utility model relates to the technical field of optical communication, in particular to a transmission and reflection optical device with a front support sleeve.

Background

The transflective optical device is widely used in optical communication systems, and is a fundamental component for realizing various optical functions.

In the prior art transreflective optics, the axial alignment of the whole optics is accomplished by the rear support sleeve 4, as shown in fig. 1. The input optical fiber 5 and the output optical fiber 6 are fixed at the center position of the capillary 3. The working light channel almost vertically enters the self-focusing lens 2 from the center position of the capillary 3 through the input optical fiber 5 (the light output section of the input optical fiber 5 is generally positioned at the focus of the self-focusing lens 2) and then is projected onto the rear end face of the transflective component 1, on the rear end face of the transflective component 1, in order to ensure that the light signal reflected and converged by the transflective component 1 can smoothly enter the output optical fiber 6, the transflective component 1 has a certain inclination angle relative to the front end face of the self-focusing lens 2, so that the light beam transmitted by the transflective component 1 has a larger axial emergent angle, and the larger axial emergent angle can influence the receiving/transmitting efficiency of the transmitted light beam.

In addition, the light transmitting and reflecting component 1 with the self-focusing lens 2 is in a suspended state in the outer sealing tube 7, and is easy to fall off and damage through high and low temperature tests or transportation vibration and the like, so that the device fails.

SUMMERY OF THE UTILITY MODEL

To overcome the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a transflective optical device with a front support sleeve.

In order to achieve the above purpose of the present invention, the present invention provides a transreflective optical device with a front support sleeve, which comprises an outer sealing tube, a front support sleeve positioned inside the outer sealing tube, and a transflector component, a self-focusing lens and an optical fiber fixing component which are sequentially connected along the axial direction of the outer sealing tube; the front support sleeve is sleeved outside the self-focusing lens; the optical axes of the transflective component and the self-focusing lens are positioned on the same straight line or parallel; the optical fiber fixing member fixes an input optical fiber and an output optical fiber therein.

The technical scheme is as follows: the front support sleeve has a support effect on the self-focusing lens, so that the connection stability of the self-focusing lens and the light transmitting and reflecting component is improved; the transflective component is not obliquely arranged any more, and the axial emergent angle of the transmitted light beam of the transflective component can be corrected by combining the guiding effect of the front support sleeve on the self-focusing lens, so that the receiving/transmitting efficiency of the transmitted light beam is improved.

In a preferred embodiment of the present invention, the front supporting sleeve is further sleeved outside the transflective member.

The technical scheme is as follows: the transflector element can be guided and supported.

In a preferred embodiment of the present invention, the optical fiber fixing device further comprises a rear support sleeve located inside the outer sealing tube, the rear support sleeve being sleeved outside the optical fiber fixing member.

The technical scheme is as follows: the optical fiber fixing component is supported, so that the optical fiber fixing component is not in a suspended state, and is not easy to fall off and damage through high and low temperature tests or transportation vibration and the like, and the reliability of a product is improved.

In a preferred embodiment of the present invention, the light exit end surface of the input optical fiber and the light entrance end surface of the output optical fiber are located on a focal plane of the self-focusing lens and not on an optical axis of the self-focusing lens.

The technical scheme is as follows: the transmitted light beam of the front-end transflective component is ensured to be output straightly, and the reflected light beam of the front-end transflective component can smoothly enter the output optical fiber.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a prior art transflective optical device;

fig. 2 is a schematic structural diagram of a transflective optical device with a front support sleeve according to a preferred embodiment of the present invention.

Reference numerals:

1 a transflective component; 2 a self-focusing lens; 3 an optical fiber fixing member; 4, supporting the sleeve; 5 an input optical fiber; 6 an output optical fiber; 7, externally sealing the tube; 8, glue; the front 9 supports the sleeve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The utility model provides a transmission and reflection device with a front support sleeve, which comprises an outer sealing tube 7, a front support sleeve 9 positioned in the outer sealing tube 7, and a transflective component 1, a self-focusing lens 2 and an optical fiber fixing component 3 which are sequentially connected along the axial direction of the outer sealing tube 7, wherein the front support sleeve 9 is arranged in the outer sealing tube 7; the front supporting sleeve 9 is sleeved outside the self-focusing lens 2; the optical axes of the transmitting and reflecting part 1 and the self-focusing lens 2 are positioned on the same straight line or parallel; the optical fiber fixing member 3 fixes an input optical fiber 5 and an output optical fiber 6 therein.

In the present embodiment, it is preferable that end surfaces of the transflective member 1, the self-focusing lens 2, and the optical fiber fixing member 3 which are connected in pairs are polished and ground so as to have good flatness and smoothness in order to facilitate connection and reduce loss of a light transmission path.

In the present embodiment, the transflective member 1 and the self-focusing lens 2 are preferably, but not limited to, bonded or contact-connected. In the case of a contact connection, it is further preferred that the front support sleeve 9 is also arranged outside the transflector 1, in order to increase the guiding effect of the transflector 1 and to achieve a contact connection.

In the present embodiment, the autofocus lens 2 is preferably an 1/4-pitch autofocus lens. Preferably, the optical fiber fixing member 3 is a capillary. Preferably, the front support sleeve 9 has a length smaller than that of the self-focusing lens 2 in order to facilitate the coupling of the self-focusing lens 2 with the optical fiber fixing member 3 at the rear end.

In the present embodiment, the self-focusing lens 2 and the optical fiber fixing member 3 are preferably, but not limited to, adhesively attached.

In the present embodiment, the front support sleeve 9 guides and supports the self-focusing lens 2, and the transflective member 1 is no longer inclined with respect to the front end surface of the self-focusing lens 2 to ensure that the reflected light beam can smoothly enter the output optical fiber 6, and the transflective member 1 is parallel to the front end surface of the self-focusing lens 2. The light emergent end face of the input optical fiber 5 and the light incident end face of the output optical fiber 6 are positioned on the focal plane of the self-focusing lens 2 and are not positioned on the optical axis of the self-focusing lens 2, the output light source of the input optical fiber 5 enters the self-focusing lens 2 like point light source light, the front end face of the self-focusing lens 2 outputs parallel light inclined to the optical axis of the self-focusing lens 2, a part of the parallel light is transmitted by the transflective component 1 and then output in a parallel light form, the other part of the parallel light is reflected by the transflective component 1 and then output to the front end face of the self-focusing lens 2 as parallel light inclined to the optical axis of the self-focusing lens 2, and the reflected light is converged on the light incident end face of the output optical fiber 6 through the self-focusing lens 2. Therefore, compared with the existing product, the end positions of the input optical fiber 5 and the output optical fiber 6 need to be adjusted to ensure that the light reflected by the transflective component 1 smoothly enters the output optical fiber 6.

In the specific manufacturing process, firstly, the optical axes of the transflective component 1 and the self-focusing lens 2 are aligned and connected, the front support sleeve 9 is sleeved outside the self-focusing lens 2, or the transflective component 1 and the self-focusing lens 2 are arranged outside, the front support sleeve 9 and the self-focusing lens 2 can be tightly matched and connected, the end surface position of the output optical fiber 6 is continuously adjusted until the light beam reflected by the transflective component 1 can enter the output optical fiber 6; the input optical fiber 5 and the output optical fiber 6 are fixed by the optical fiber fixing component 3, the rear end face of the self-focusing lens 2 is connected with the front end face of the optical fiber fixing component 3, and glue 8 can be selected for connection. And then, the connected transflective component 1, the front support sleeve 9, the self-focusing lens 2 and the optical fiber fixing component 3 are penetrated into an outer sealing tube 7 for fixing, and the assembly of the transflective device provided by the utility model is completed after packaging, wherein the outer sealing tube 7 is preferably but not limited to a metal packaging tube with a side opening.

In this embodiment, it is preferable that the optical fiber fixing device further includes a rear support sleeve 4 located inside the outer sealing tube 7, and the rear support sleeve 4 is fitted outside the optical fiber fixing member 3. The rear support sleeve 4 is preferably, but not limited to, a pilot glass tube.

According to the transmission reflection optical device with the front support sleeve, the performance parameters of the product are improved and the reliability performance of the product is improved by arranging the front support sleeve 9. The product is verified by system equipment, and the performance index and the reliability performance are really improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The transmission reflection optical device with the front support sleeve is characterized by comprising an outer sealing tube (7), a front support sleeve (9) positioned in the outer sealing tube (7), and a transflective component (1), a self-focusing lens (2) and an optical fiber fixing component (3) which are sequentially connected along the axial direction of the outer sealing tube (7);

the front support sleeve (9) is sleeved outside the self-focusing lens (2);

the optical axes of the transmitting and reflecting component (1) and the self-focusing lens (2) are positioned on the same straight line or are parallel;

the optical fiber fixing component (3) is internally fixed with an input optical fiber (5) and an output optical fiber (6).

2. The transreflective optical device with front supporting sleeve according to claim 1, wherein said front supporting sleeve (9) is further sleeved outside said transflective member (1).

3. The transreflective optical device with front support sleeve according to claim 1 or 2, further comprising a rear support sleeve (4) located inside the outer sealing tube (7), wherein the rear support sleeve (4) is sleeved outside the optical fiber fixing member (3).

4. The transreflective optical device with front support sleeve according to claim 1 or 2, wherein the light exit end face of the input optical fiber (5) and the light entrance end face of the output optical fiber (6) are located on the focal plane of the self-focusing lens (2) and not on the optical axis of the self-focusing lens (2).

5. The transreflective optical device with front support sleeve according to claim 3, wherein the light exit end face of the input optical fiber (5) and the light entrance end face of the output optical fiber (6) are located on the focal plane of the self-focusing lens (2) and not on the optical axis of the self-focusing lens (2).

6. The transreflective optical device with front support sleeve according to claim 1, 2 or 5, wherein the rear end face of the transflective member (1) is bonded to the front end face of the self-focusing lens (2).

7. The transreflective optical device with front support sleeve according to claim 3, wherein the rear end face of the transflective member (1) is bonded to the front end face of the self-focusing lens (2).

8. The transreflective optical device with front support sleeve according to claim 4, wherein the rear end face of the transflective member (1) is bonded to the front end face of the self-focusing lens (2).

9. The transreflective optical device with front support sleeve according to claim 1, 2, 5, 7 or 8, wherein the rear end face of the self-focusing lens (2) and the front end face of the optical fiber fixing member (3) are fixed by glue (8).

10. The transreflective optical device with front support sleeve according to claim 1, 2, 5, 7 or 8, wherein the optical fiber fixing member (3) is a capillary tube.