CN213023639U

CN213023639U - High-power optical fiber jumper wire structure and laser

Info

Publication number: CN213023639U
Application number: CN202022199692.0U
Authority: CN
Inventors: 周少丰; 刘鹏; 黄良杰
Original assignee: Shenzhen Xinghan Laser Technology Co Ltd
Current assignee: Shenzhen Xinghan Laser Technology Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-04-20
Anticipated expiration: 2030-09-29

Abstract

The utility model provides a high power optical fiber jumper wire structure, including optic fibre and the protective layer of parcel optic fibre, optic fibre includes the first part that does not have the coating and the second part that is equipped with the coating, seted up a breach on the protective layer that the first part was located, the breach is seted up to optic fibre department and is exposed the optic fibre of here, the optic fibre surface that is exposed in the breach is equipped with the euphotic layer; the utility model discloses still including the laser instrument that is equipped with this high power optic fibre wire jumper structure.

Description

High-power optical fiber jumper wire structure and laser

Technical Field

The utility model relates to a laser technical field especially relates to a high power optic fibre wire jumper structure and laser instrument.

Background

Laser has been a further significant invention of humans since the 20 th century, following atomic energy, computers, semiconductors, and is known as the "fastest knife", "best-line ruler", "brightest light", and "singular laser". It has a brightness of about 100 hundred million times that of sunlight. The principle of laser light was discovered by the famous american physicist einstein as early as 1916, but laser light was not successfully manufactured for the first time until 1960. Laser light has come into operation in the context of urgent needs for theoretical preparation and production practices, and its development has led to an extraordinary rapid development, which has led to the emergence of not only ancient optical science and optical technology but also the whole emerging industry.

In order to improve the output power of the existing laser, a plurality of laser chips are required to be arranged to generate laser, and various types of lenses are arranged in the laser so that the laser generated by each laser chip can be finally combined and focused into the optical fiber for output, when the laser is focused into the fiber core in the optical fiber, some laser light may be conducted to the cladding outside the core due to problems of focusing, positioning, etc., and some light may be incident on the end surface of the core at an excessively large angle, these rays are refracted into the cladding as they propagate in the core, resulting in some of the rays propagating in the cladding, the optical fiber is generally further provided with a coating layer, and because the refractive index of the coating layer is larger than that of the cladding layer, when light rays propagating in the cladding layer meet the coating layer, the light rays can be refracted in the coating layer, and after the excessive light rays reach the coating layer, the coating layer is heated and damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the overheated high power optic fibre wire jumper structure of a prevention coating that proposes.

The utility model provides a high power optic fibre wire jumper structure, includes optic fibre and the protective layer of parcel optic fibre, optic fibre is including the first portion that is not equipped with the coating and the second portion that is equipped with the coating, a breach has been seted up on the protective layer at first portion place, the breach is seted up optic fibre department and is exposed the optic fibre at here, the optic fibre surface that is exposed in the breach is equipped with the euphotic layer.

Preferably, the surface of the light-transmitting layer is not flat, and the refractive index of the light-transmitting layer is greater than the refractive index of the cladding layer.

Preferably, the light-transmitting layer is an uneven glue layer formed after glue coated on the surface of the exposed optical fiber in the notch is cured.

Preferably, the protective layer is provided with a jack for inserting the optical fiber, and the notch is formed in the middle of the protective layer and communicated with the jack.

The utility model provides a laser instrument, includes laser module and high power optic fibre jumper structure, the light that the laser module sent is received and transmitted to high power optic fibre jumper structure, high power optic fibre jumper structure includes optic fibre and the protective layer of parcel optic fibre, optic fibre is including the first part that is not equipped with the coating and the second part that is equipped with the coating, first part is close to than the second part laser module, a breach has been seted up on the protective layer at first part place, the breach is seted up optic fibre department and is exposed the optic fibre at this place, the optic fibre surface that is exposed in the breach is equipped with the euphotic layer.

Preferably, the refractive index of the light-transmitting layer is greater than the refractive index of the cladding layer.

Preferably, the surface of the light-transmitting layer is uneven.

Preferably, the notch is located in front of the first portion of the optical fiber, the laser module is enclosed in a housing, and the notch is located inside the housing.

Preferably, the notch is located at the rear of the first portion of the optical fiber, the laser module is enclosed in a housing, and the notch is located outside the housing.

Advantageous effects

The utility model discloses in, derive the laser of covering in with optic fibre through the breach, prevent that the light in the covering from conducting to in the coating, the effectual coating of having protected.

Drawings

Fig. 1 is the three-dimensional exploded view of the high power optical fiber jumper structure and the laser of the present invention.

Fig. 2 is the utility model discloses high power optical fiber jumper structure and laser's three-dimensional assembly chart.

Fig. 3 is the utility model discloses high power optical fiber jumper structure's cross-sectional view schematic diagram.

Fig. 4 is another schematic cross-sectional view of the high-power optical fiber jumper structure of the present invention.

Fig. 5 is an enlarged view at V in fig. 4.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1 and 2, a high power optical fiber jumper structure 3 is installed in a casing 1, and the one end of casing 1 is equipped with two pin through-holes (not shown), and the other end of casing 1 is equipped with an end through-hole 114, has packaged the laser module in the casing 1, the laser module is fixed through high temperature resistant glue in the inside hollow space of casing 1, the material of casing 1 adopts heat-resisting and the fast material of heat conduction such as copper to make, so that the heat that the laser module produced can conduct away fast.

The laser module comprises a conductive pin 11 which can be sealed and fixed in a pin through hole, an optical fiber jumper wire structure 3 which can be sealed and fixed in an end head through hole 114, a COS array which is packaged in the shell 1, a collimating lens array, a reflector array, a polarization beam combiner, a focusing lens group and the like, wherein the conductive pin 11 supplies power to the COS array to enable the COS array to generate laser, the collimating lens array is arranged in the light-emitting direction of the COS array, used for outputting the laser after being collimated, the reflector array is arranged in the light-emitting direction of the collimating lens array, used for changing the direction of the laser output by collimation, the polarization beam combiner is arranged in the light-emitting direction of the reflector array, the focusing lens is arranged in the light-emitting direction of the polarization beam combiner and is used for coupling the combined laser into the optical fiber jumper structure 3.

Please refer to fig. 3, which is a schematic diagram of an optical fiber jumper structure 3, the optical fiber jumper structure 3 includes an optical fiber 31 and a protection layer 32 wrapping the protection optical fiber 31, the protection layer 32 may be made of ceramic, copper, etc., a plug hole 321 is disposed in a middle portion of the protection layer 32, an end of the protection layer 32 facing the focusing lens is a first end 322, an end of the protection layer 32 facing away from the focusing lens is a second end 323, the plug hole 321 penetrates through the protection layer 32 along an axis, the second end 323 is disposed with a receiving hole 324 communicated with the plug hole 321, and a diameter of the receiving hole 324 is larger than a.

Referring to fig. 3-5, the optical fiber 31 includes a core 311, a cladding 312 and a cladding 313, the cladding 312 wraps the core 311 to protect it, the cladding 313 is coated on the outer side of the cladding 312 (see fig. 5), according to the requirement, a part of the cladding 312 is provided with the cladding 313, and a part of the cladding is not provided with the cladding 313, in this embodiment, a first portion 315 of the cladding 312 located at the front is not provided with the cladding 313, a second portion 316 located at the rear is provided with the cladding 313, the first portion 315 is a portion of the optical fiber 31 from which the cladding is stripped, and the second portion 316 is a portion of the optical fiber 31 from which the cladding is not stripped.

The first portion 315 of the optical fiber 31 is inserted into the receptacle 321 of the cover 32 from the second end 323 of the cover 32, and the front portion of the first portion 315 slightly penetrates the first end 322, and the connection between the first portion 315 and the second portion 316 is located at the receiving hole 324 or at the connection between the receiving hole 324 and the receptacle 321.

A notch 317 is formed in the protection layer 32 where the first portion 315 is located, the notch 317 is formed in the middle of the protection layer 32 and is communicated with the insertion hole 321 at the middle, so as to expose the optical fiber 31 at the position, a light transmitting layer 319 (see fig. 5) is arranged on the optical fiber 31 exposed in the notch, in a preferred embodiment, glue is coated on the exposed optical fiber 31, the coated glue is uneven, an uneven glue layer is formed after curing, namely, the light transmitting layer 319, the refractive index of the light transmitting layer 319 is greater than that of the cladding layer 312, when the optical fiber transmitted in the cladding layer transmits to the notch 317, the optical fiber is refracted into the cured light transmitting layer 319, and due to the uneven surface of the light transmitting layer 319, light refracted into the light transmitting layer 319 cannot be completely emitted, and exits into the air in the notch 317, so that laser light transmitted in the cladding layer 312 is greatly reduced, and only a small amount of laser light transmitted in the cladding layer 312 continues to be transmitted in the cladding layer 312, and transferred into the coating layer 313 of the second portion 316, effectively avoiding excessive temperatures of the coating layer 313.

In the above embodiment, the light-transmitting layer 319 may be formed by other methods and materials as long as the laser light transmitted through the cladding layer 312 can be guided out.

In a preferred embodiment, the notch 317 is located at the front of the first portion 315 of the optical fiber 31, after the housing 1 is packaged, the notch 317 is located inside the housing 1, the laser emitted into the notch 317 irradiates the housing, and the heat is absorbed by the housing; in another preferred embodiment, the notch 317 is located at the rear of the first portion 315 of the optical fiber 31, after the housing 1 is packaged, the notch 317 is located outside the housing 1, the laser emitted into the notch 317 propagates to the outside of the housing, and the heat is absorbed by the outside.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high power optical fiber jumper wire structure, includes optic fibre and the protective layer of parcel optic fibre, optic fibre is including the first portion that is not equipped with the coating and the second portion that is equipped with the coating, its characterized in that: the protective layer where the first part is located is provided with a notch, the notch is arranged at the optical fiber to expose the optical fiber, and the surface of the exposed optical fiber in the notch is provided with a light transmitting layer.

2. The high power optical fiber jumper structure of claim 1, wherein: the surface of the light transmitting layer is uneven, the optical fiber comprises a cladding layer, and the refractive index of the light transmitting layer is larger than that of the cladding layer.

3. The high power optical fiber jumper structure of claim 1, wherein: the light transmission layer is an uneven glue layer formed after glue coated on the surface of the exposed optical fiber in the notch is cured.

4. The high power optical fiber jumper structure of claim 1, wherein: the protective layer is provided with an insertion hole for inserting the optical fiber, and the notch is formed in the middle of the protective layer and communicated with the insertion hole.

5. The utility model provides a laser device, includes laser module and high power optical fiber jumper structure, high power optical fiber jumper structure receives and transmits the light that laser module sent, high power optical fiber jumper structure includes optic fibre and the protective layer of parcel optic fibre, optic fibre is including the first part that is not equipped with the coating and the second part that is equipped with the coating, its characterized in that: the first part is closer to the laser module than the second part, a notch is formed in the protective layer where the first part is located, the notch is formed in the position of the optical fiber to expose the optical fiber, and a light transmitting layer is arranged on the surface of the optical fiber exposed in the notch.

6. The laser of claim 5, wherein: the optical fiber comprises a cladding layer, and the refractive index of the light-transmitting layer is larger than that of the cladding layer.

7. The laser of claim 6, wherein: the surface of the euphotic layer is uneven.

8. The laser of claim 5, wherein: the light transmission layer is an uneven glue layer formed after glue coated on the surface of the exposed optical fiber in the notch is cured.

9. The laser of claim 5, wherein: the notch is located in front of the first portion of the optical fiber, the laser module is enclosed in a housing, and the notch is located inside the housing.

10. The laser of claim 5, wherein: the notch is located at the rear of the first portion of the optical fiber, the laser module is encapsulated in the housing, and the notch is located outside the housing.