CN210072143U

CN210072143U - Light splitting three-way optical device

Info

Publication number: CN210072143U
Application number: CN201920812797.3U
Authority: CN
Inventors: 缪玉筛; 潘红顺
Original assignee: Jiangsu Allray Inc
Current assignee: Jiangsu Allray Inc
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-02-14
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a three logical optical devices of beam split, including LD laser, the metal base be connected with the LD laser, the metal tube seat be connected with the metal base, the metal tube core be connected with the metal tube seat, be equipped with the ceramic lock pin in the metal tube core, the tip of ceramic lock pin is equipped with the ceramic lock pin APC face of slope, the both sides of metal tube seat are connected with first PD respectively and connect light ware and second PD to connect light ware, be equipped with first 45 minutes of light splitting piece, 45 minutes of second light splitting piece and 0 minutes of light splitting piece in the metal tube core, the light of ceramic lock pin directly incides ceramic lock pin APC face, the light of ceramic lock pin transmits second PD through first 45 minutes of light splitting piece and connects light ware, the light of ceramic lock pin transmits on the first PD connects light ware again after transmitting 0 minutes of light splitting piece through 45 minutes of second. The utility model discloses when realizing single fiber three-dimensional optical device function, make compact structure, with low costs, the stability of product good.

Description

Light splitting three-way optical device

Technical Field

The utility model relates to an optical communication field especially relates to a beam split tee bend optical device.

Background

At present, the competition of the optical communication market is more and more intense, and the infrastructure of communication facilities is more and more intensive, so that the existing optical fiber resources can be greatly utilized by using the same wavelength optical fiber transmission scheme, and the construction cost of a system end is reduced. However, the optical module end cannot use effective optical sorting and isolation measures during transmission with the same wavelength, so that the overall link crosstalk is large, and the transmission quality is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spectral tee bend optical device that transmission quality is good.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a beam split tee bend optical device, includes LD laser, the metal base of being connected with the LD laser, the metal tube socket of being connected with the metal base, the metal tube core of being connected with the metal tube socket, be equipped with the pottery lock pin in the metal tube core, the tip of pottery lock pin is equipped with inclined pottery lock pin APC face, the both sides of metal tube socket are connected with first PD respectively and connect the optical ware with second PD and connect the optical ware, be equipped with first 45 minutes of light splitting piece, second 45 minutes of light splitting piece and 0 minutes of light splitting piece in the metal tube core, the light of pottery lock pin is direct incides pottery lock pin APC face, the light of pottery lock pin is transmitted the second PD through first 45 minutes of light splitting piece and is connect the optical ware, the light of pottery lock pin transmits to first PD through second 45 minutes of light splitting piece after transmitting 0 minutes of light splitting piece again.

Further, the LD laser is connected with the metal base through a crimping and bonding process.

Further, the ceramic inserting core is connected with the metal tube core through a bonding process.

Further, the first 45-degree light splitting sheet, the second 45-degree light splitting sheet and the 0-degree light splitting sheet are connected with the metal tube core through a bonding process.

Further, the first PD light receiver and the second PD light receiver are connected with the metal tube seat through a bonding process.

Furthermore, the metal base is connected with the metal tube seat through a laser welding process. Compared with the prior art, the utility model discloses light-splitting tee bend optical device's beneficial effect is:

1. realizing that one optical fiber realizes one emission and two receiving optical components with the same wavelength;

2. the single-fiber three-dimensional optical device reduces the space of the optical module and enables the optical module to be more miniaturized;

3. the function of a single-fiber three-dimensional optical device is realized, and meanwhile, the product has the advantages of compact structure, low cost and good stability.

Drawings

Fig. 1 is a schematic external structural view of a light splitting three-way optical device.

Fig. 2 is a schematic diagram of the internal structure of the light-splitting three-way optical device.

In the figure, 1, an LD laser, 2, a metal base, 3, a metal tube seat, 4, a metal tube core, 5, a first PD optical connector, 6, a second PD optical connector, 7, a ferrule, 71, an APC surface of the ferrule, 8, a first 45 ° light splitting sheet, 9, a second 45 ° light splitting sheet, 10, 0 ° light splitting sheet, 11, and incident light.

Detailed Description

Referring to fig. 1 to 2, a light splitting three-way optical device includes an LD laser 1, a metal base 2 connected to the LD laser, a metal tube base 3 connected to the metal base 2, and a metal tube core 4 connected to the metal tube base 3, wherein a ferrule 7 is disposed in the metal tube core 4, and an end of the ferrule 5 is disposed with an inclined ferrule APC surface 7. The two sides of the metal tube seat 3 are respectively connected with a first PD light receiver 5 and a second PD light receiver 6, a first 45-degree light splitting sheet 8, a second 45-degree light splitting sheet 9 and a 0-degree light splitting sheet 10 are arranged in the metal tube core 4, the incident light 8 directly enters the APC surface 7 of the ceramic ferrule to form an angle theta 1, and the light of the ceramic ferrule and the incident light 8 form an angle theta. The light of the ferrule is transmitted to the second PD optical connector 6 through the first 45 ° spectroscope 8, and the light of the ferrule is transmitted to the 0 ° spectroscope 10 through the second 45 ° spectroscope 9 and then transmitted to the first PD optical connector 5.

The LD laser is connected to the metal base 2 by a crimping and bonding process.

The ferrule 7 is attached to the metal die 4 by a bonding process.

The first 45 ° beam splitter 8, the second 45 ° beam splitter 9 and the 0 ° beam splitter 10 are connected to the metal die 4 by a bonding process.

The first PD optical receiver 5 and the second PD optical receiver 6 are connected to the metal stem 3 by an adhesion process.

The metal base 2 is connected to the metal stem 3 by a laser welding process.

The light-splitting three-way optical device is assembled in the following way:

(1) pressing the LD laser into the metal base by adopting a crimping and bonding process;

(2) fixing the ceramic ferrule in the metal tube core by adopting a gluing process;

(3) the first 45-degree light splitting sheet, the second 45-degree light splitting sheet and the 0-degree light splitting sheet are attached to the metal tube core by adopting an adhesive process;

(4) arranging the metal tube core fixed with the light splitting sheet on an upper chuck of a coupling jig, arranging the metal tube shell on a lower chuck of the coupling jig, and connecting the metal tube core and the metal tube seat together by laser welding;

(5) the LD laser device pressed into the metal base is arranged on a lower chuck of a coupling jig, a metal tube core for fixing the light splitting sheet is arranged on an upper chuck of the coupling jig, manual coupling or automatic coupling is carried out, coupling optical power or coupling current is observed in the coupling process, and the coupled index meets the output optical power of an optical device;

(6) in the coupling process, an LD laser and the ceramic ferrule assembly form an angle theta 1;

(7) in the coupling process, the incident light is transmitted into the ceramic ferrule without passing through the 45-degree light splitting sheet by rotating the angle of the APC surface of the ceramic ferrule;

(8) incident light directly enters the APC surface of the ceramic ferrule to form an angle theta 1;

(9) the incident light is transmitted to the ceramic ferrule without passing through the 45-degree light splitting sheet;

(10) laser welding is carried out between the metal base and the metal tube shell;

(11) the coupled assembly is arranged on an upper chuck of a coupling jig, a second PD light receiver device is arranged on a lower chuck of the coupling jig, manual coupling or automatic coupling is carried out, coupling responsivity or coupling current is observed in the coupling process, and the requirements of optical devices are met;

(12) the emitted light of the ceramic ferrule is transmitted to a second PD light receiver through a first 45-degree light splitting sheet;

(13) the emitted light and the light of the ceramic ferrule form an included angle theta;

(14) the second PD light receiver is fixed with the metal tube seat through a bonding process;

(15) the coupled assembly is arranged on an upper chuck of a coupling jig, the first PD light receiver device is arranged on a lower chuck of the coupling jig to carry out manual coupling or automatic coupling, and the coupling responsivity or coupling current is observed in the coupling process to meet the requirements of optical devices;

(16) transmitting the light of the ceramic ferrule to a 0-degree light splitting sheet through a second 45-degree light splitting sheet and transmitting the light to a first PD light receiver;

(17) the first PD light receiver is fixed with the metal tube seat through an adhesion process.

The utility model has the advantages that:

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. A light splitting three-way light device is characterized in that: the laser comprises an LD laser, a metal base connected with the LD laser, a metal tube seat connected with the metal base, and a metal tube core connected with the metal tube seat, wherein a ceramic ferrule is arranged in the metal tube core, the end part of the ceramic ferrule is provided with an oblique ceramic ferrule APC surface, two sides of the metal tube seat are respectively connected with a first PD light receiver and a second PD light receiver, a first 45-degree light splitting sheet, a second 45-degree light splitting sheet and a 0-degree light splitting sheet are arranged in the metal tube core, incident light directly enters the APC surface of the ceramic ferrule, the light of the ceramic ferrule is transmitted to the second PD light receiver through the first 45-degree light splitting sheet, and the light of the ceramic ferrule is transmitted to the first PD light receiver after being transmitted to the 0-degree light splitting sheet through the second 45-degree light splitting sheet.

2. The beam splitting triplet as defined in claim 1 wherein: the LD laser is connected with the metal base through compression joint and bonding technology.

3. The beam splitting triplet as defined in claim 1 wherein: the ceramic inserting core is connected with the metal tube core through an adhesion process.

4. The beam splitting triplet as defined in claim 1 wherein: the first 45-degree light splitting sheet, the second 45-degree light splitting sheet and the 0-degree light splitting sheet are connected with the metal tube core through a bonding process.

5. The beam splitting triplet as defined in claim 1 wherein: and the first PD light receiver and the second PD light receiver are connected with the metal tube seat through an adhesion process.

6. The beam splitting triplet as defined in claim 1 wherein: the metal base is connected with the metal tube seat through a laser welding process.