CN211454024U

CN211454024U - Novel CWDM module

Info

Publication number: CN211454024U
Application number: CN202020209054.XU
Authority: CN
Inventors: 曾清华; 沈庆元
Original assignee: Xi'amen Siketu Photoelectric Technology Co ltd
Current assignee: Wang Xin
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-09-08
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a novel CWDM module, which comprises a housin, optical input port, a plurality of optical output port, reflection prism, first beam split unit and second beam split unit, optical input port fixes a side at the casing, a plurality of optical output port fix respectively in the side that the casing is relative, reflection prism fixes inside the casing, reflect optical input port's input beam for first beam split unit and second beam split unit, still including the adjustable fender that is used for the activity to shelter from reflection prism's reflection beam all the way, adjustable fender one end exposes at the casing surface, the other end stretches into inside the casing. The utility model discloses a set up adjustable fender, realize the switching between many exports and few output mode.

Description

Novel CWDM module

Technical Field

The utility model relates to a CWDM technical field especially indicates a novel CWDM module.

Background

CWDM is a low cost WDM transmission technique oriented towards the metro network access layer. In principle, CWDM multiplexes optical signals with different wavelengths to a single optical fiber by using an optical multiplexer, and at a receiving end of a link, decomposes a mixed signal in the optical fiber into signals with different wavelengths by using the optical demultiplexer, and connects the signals to corresponding receiving devices. For example, chinese utility model patent publication No. CN205910373U discloses a CWDM module, which includes a sealed housing, a light beam input system, a light beam output system, a light splitting system, and a light path adjusting system; the light beam input system comprises a light beam input device which is arranged at the lower end of the sealed shell; the light splitting system comprises a first light splitting assembly and a second light splitting assembly, and the first light splitting assembly and the second light splitting assembly are respectively arranged on the left side and the right side in the sealed shell; the optical path adjusting system is arranged between the first light splitting component and the second light splitting component; input light enters the light splitting system after entering from the light beam input system, and is output by each light beam output device after being split by the first light splitting assembly and the second light splitting assembly of the light splitting system. The number of output ports of the existing CWDM module is determined, and the switching between a multi-output mode and a low-output mode cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel CWDM module, the output port quantity of having solved among the prior art CWDM module is definite, can't realize the problem of the switching between many outputs and the few output mode.

The technical scheme of the utility model is realized like this:

the utility model provides a novel CWDM module, includes casing, light input port, a plurality of light output port, reflection prism, first beam split unit and second beam split unit, light input port fixes a side of casing is a plurality of light output port fixes respectively the relative side of casing, reflection prism fixes inside the casing, reflects light input port's input beam for first beam split unit and second beam split unit, still shelters from including being used for the activity the adjustable fender of reflection prism's the reflection beam of the same way, adjustable fender one end is exposed the surface of the housing, the other end stretches into inside the casing.

As a preferred embodiment of the present invention, the first light splitting unit includes a parallel flat plate and a plurality of CWDM diaphragms fixed on the parallel flat plate, the CWDM diaphragms are perpendicular to the parallel flat plate, the first light splitting unit and the second light splitting unit have the same structure, and are relatively fixed inside the housing.

As a preferred embodiment of the present invention, the first light splitting unit includes a parallel plate and 4 CWDM membranes fixed on the parallel plate.

As a preferred embodiment of the present invention, the first light splitting unit includes a parallel flat plate and a plurality of CWDM diaphragms fixed on the parallel flat plate, the CWDM diaphragms are obliquely plated on the parallel flat plate, and the first light splitting unit and the second light splitting unit have the same structure and are relatively fixed inside the housing.

As a preferred embodiment of the present invention, the CWDM membranes are parallel to each other.

The beneficial effects of the utility model reside in that: through setting up the adjustable fender, can select to shelter from one of them reflection output light beam of reflection prism, only another beam split unit is used for the beam split, and the CWDM module is worked in few output mode, if adjustable fender does not shelter from reflection output light beam, then the CWDM module is worked in many output mode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a novel CWDM module according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the novel CWDM module according to the present invention.

In the drawings, 1-housing; 2-an optical input port; 3-an optical output port; 4-a reflective prism; 5-a first light splitting unit; 6-a second light splitting unit; 7-movable baffle.

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. 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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 and 2, the utility model provides a novel CWDM module, including the casing 1 that has the cavity, light input port 2, a plurality of light output port 3, reflection prism 4, first beam splitting unit 5 and second beam splitting unit 6, light input port 2 fixes a side at casing 1, a plurality of light output port 3 are fixed respectively in the relative side of casing 1, reflection prism 4 fixes inside casing 1, reflect light input port 2's input beam for first beam splitting unit 5 and second beam splitting unit 6, still including being used for the activity to shelter from movable baffle 7 of reflection prism 4's the reflected beam of the same kind, movable baffle 7 one end is exposed at casing 1 surface, the other end stretches into inside casing 1.

Casing 1 adopts metal or plastics material to make, wholly is the cuboid shape, including drain pan and top cap, and reflecting prism 4, first beam split unit 5 and second beam split unit 6 pass through the screw fixation in the drain pan, and the top cap passes through screw and drain pan fixed connection. Specifically, adjustable fender 7 can adopt rectangular shaped plate, and the top cap is equipped with the spout, and adjustable fender 7 slides along the spout, shelters from or does not shelter from reflection prism 4's reflection output light beam, and the activity both ends of the adjustable fender 7 that correspond are equipped with the draw-in groove of relative setting for fixed adjustable fender 7.

Example one

The first light splitting unit 5 comprises a parallel flat plate and a plurality of CWDM diaphragms fixed on the parallel flat plate, the CWDM diaphragms are perpendicular to the parallel flat plate, the first light splitting unit 5 and the second light splitting unit 6 have the same structure and are relatively fixed in the shell 1. The first light splitting unit 5 comprises a parallel plate and 4 CWDM membranes fixed on the parallel plate.

Example two

The first light splitting unit 5 comprises a parallel flat plate and a plurality of CWDM diaphragms fixed on the parallel flat plate, the CWDM diaphragms are obliquely plated on the parallel flat plate, and the first light splitting unit 5 and the second light splitting unit 6 are in the same structure and are relatively fixed in the shell 1. The CWDM membranes are parallel to each other. The first light splitting unit 5 comprises a parallel plate and 4 CWDM membranes fixed on the parallel plate.

In the above two embodiments, the first light splitting unit 5 and the second light splitting unit 6 include the signal lights of the transmission wavelengths λ 1 to λ 8, and reflect the signal lights of other wavelengths.

The utility model discloses a set up adjustable fender 7, the optional reflection output beam of wherein all the way that shelters from reflecting prism 4, only another beam split unit is used for the beam split, and the CWDM module is worked in few output mode, if adjustable fender 7 does not shelter from reflection output beam, then the CWDM module work in many output mode.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel CWDM module, includes casing, light input port, a plurality of light output port, reflection prism, first beam split unit and second beam split unit, light input port fixes a side of casing, and is a plurality of light output port fixes respectively the relative side of casing, reflection prism fixes inside the casing, reflects light input port's input beam for first beam split unit and second beam split unit, its characterized in that: the movable baffle is used for movably shielding one path of reflected light beam of the reflecting prism, one end of the movable baffle is exposed on the outer surface of the shell, and the other end of the movable baffle extends into the shell.

2. The novel CWDM module of claim 1, wherein: the first light splitting unit comprises a parallel flat plate and a plurality of CWDM diaphragms fixed on the parallel flat plate, the CWDM diaphragms are perpendicular to the parallel flat plate, and the first light splitting unit and the second light splitting unit are identical in structure and are relatively fixed in the shell.

3. The novel CWDM module of claim 2, wherein: the first light splitting unit comprises a parallel flat plate and 4 CWDM diaphragms fixed on the parallel flat plate.

4. The novel CWDM module of claim 1, wherein: the first light splitting unit comprises a parallel flat plate and a plurality of CWDM diaphragms fixed on the parallel flat plate, the CWDM diaphragms are obliquely plated on the parallel flat plate, and the first light splitting unit and the second light splitting unit are identical in structure and relatively fixed in the shell.

5. The novel CWDM module of claim 4, wherein: the CWDM membranes are parallel to each other.

6. A novel CWDM module according to claim 4 or 5 characterized in that: the first light splitting unit comprises a parallel flat plate and 4 CWDM diaphragms fixed on the parallel flat plate.