KR102355125B1 - Connector structure for spectral beam combining and spectral beam combining apparatus having thw same - Google Patents

Abstract

The present invention relates to a spectral beam combining connector structure which comprises: an optical fiber cable body part in which a plurality of optical fiber members outputting a laser beam are wrapped with an outer skin material; a beam combining connector body part disposed on an end side of the optical fiber cable body part, having an optical fiber array block member, to which the plurality of optical fiber members are fused, disposed therein, and outputting a plurality of laser beams from the end side through the optical fiber array block member; and a connector insertion part disposed in a beam combining module housing having a transmission mirror and a diffraction grating disposed therein to combine the plurality of laser beams inside and allowing the beam combining connector body part to be inserted and detachably coupled thereto. Accordingly, the beam combining module body part and the laser module assembly are detachably coupled to the connector structure, thereby securing convenience during manufacturing, and facilitating transfer and maintenance.

Description

A connector structure for combining a multi-wavelength beam and a multi-wavelength beam combining device having the same

The present invention relates to a connector structure for coupling a multi-wavelength beam and a multi-wavelength beam coupling device having the same.

In general, a fiber laser beam using an optical fiber array is widely used in optical switching, signal processing, optical tomography, sensing, and multi-wavelength beam combining.

In the fiber laser beam, a beam combining method is widely used to increase the output of the fiber laser while maintaining excellent beam quality.

In particular, the method of increasing the output through the multi-wavelength beam coupling is in the spotlight because the configuration is simple and the output is easy to increase.

That is, the multi-wavelength beam combining method is a technology that can obtain high power while maintaining the beam quality of the laser beam, and is widely used in the development of high power laser for long-distance transmission.

Multi-wavelength beam combining is a method of combining laser beams of different wavelengths into one beam using a diffraction element such as a diffraction grating.

Multi-wavelength beam coupling can be configured in various ways depending on whether the laser beam is collimated and the number of diffraction gratings used.

The laser module for multi-wavelength beam combining uses a narrow wavelength line width to maintain excellent beam quality even after diffraction in the diffraction grating.

This causes high nonlinearity in the laser amplification process and uses a short transmission optical fiber length to alleviate it.

As a result, the total transmission fiber length used in laser modules and fiber arrays is inevitably limited.

For this reason, fusing the transmission optical fiber of the optical fiber array included in the laser module and the beam coupling module is quite difficult and requires a separate mechanism to protect the fusion part even after fusion.

In addition, a plurality of optical fibers outputting a beam, a transmission mirror that reflects the beam output from the plurality of optical fibers, a diffraction grating that combines a plurality of beams reflected from the transmission mirror, etc. is located

In addition, a plurality of optical fibers for beam coupling pass through the wall of the housing for the beam coupling module and are bonded and fixed to the optical fiber array block. Since it is difficult and practically impossible to separate the assembly and the housing for the beam coupling module, there are problems such as inconvenient movement or maintenance, and damage to the device during movement or maintenance.

0001) Korea Patent Registration No. 1928406 'Optical Fiber Laser Generator' (Registered on 2018.12.06.)

It is an object of the present invention to separably combine a beam coupling module body and a laser module assembly with a connector structure to secure convenience in manufacturing and to facilitate movement and maintenance of a multi-wavelength beam coupling connector structure and a multi-wavelength beam having the same To provide a coupling device.

Another object of the present invention is to provide a connector structure for combining a multi-wavelength beam, which greatly improves stability when combining a multi-wavelength laser beam by cooling an optical fiber array block when combining a multi-wavelength beam, and a multi-wavelength beam combining device having the same.

Another object of the present invention is to provide a connector structure for coupling a multi-wavelength beam capable of assembling a connector at an accurate position by guiding the coupling and separation of the connector with a guide rail structure, and a multi-wavelength beam coupling device having the same.

In order to achieve the above object of the present invention, an embodiment of a connector structure for combining a multi-wavelength beam according to the present invention is an optical fiber cable body in which a plurality of optical fiber members outputting a laser beam are wrapped with an outer skin material, the optical fiber cable body It is located on the end side, the optical fiber array block member to which a plurality of optical fiber members are fused therein is located, the connector body for beam coupling that outputs a plurality of laser beams through the optical fiber array block member from the end side, a transmission mirror inside And the diffraction grating is positioned in the housing for a beam coupling module for coupling a plurality of laser beams therein, and the connector body for coupling the beam is inserted, characterized in that it comprises a connector insertion portion to be coupled separably.

In order to achieve the above object of the present invention, one embodiment of a multi-wavelength beam combining device according to the present invention is a laser module assembly including a plurality of laser modules including a light source for generating a laser beam, and is connected to the laser module assembly. An optical fiber cable body in which a plurality of optical fiber members outputting a laser beam are wrapped with an outer skin material, located at an end side of the optical fiber cable body, and an optical fiber array block member in which a plurality of optical fiber members are fused is located, and the optical fiber array block member is located at the end side A connector body for beam coupling that outputs a plurality of laser beams through an optical fiber array block member, a housing for a beam coupling module in which a transmission mirror and a diffraction grating are positioned to combine a plurality of laser beams, and the housing for the beam coupling module It is characterized in that it comprises a connector insertion portion is positioned and the connector body for coupling the beam is inserted and detachably coupled.

In the present invention, the optical fiber cable body may include a plurality of optical fiber members connecting the plurality of laser modules of the laser module assembly and the optical fiber array block member, and a cable outer skin member for protecting the plurality of optical fiber members by wrapping them.

In the present invention, the optical fiber member includes a plurality of first optical fibers respectively connected to a plurality of laser modules, one end of which is fused with the plurality of first optical fibers, respectively, and the other end of the optical fiber array block in the connector body for beam coupling. It may include a plurality of second optical fibers to be fused to the member, and a fusion part protecting member for protecting the fusion part of the first optical fiber and the second optical fiber inside the outer skin material.

The optical fiber array block member may be positioned inside the connector body for beam coupling, and an output surface may be exposed to the front of the connector body for beam coupling.

In the present invention, the connector body for coupling the beam may be made of an aluminum material or an aluminum alloy material.

In the present invention, the connector body for beam coupling has a block insertion space in which a cooling fluid for cooling the optical fiber array block member can be filled, a cooling fluid supply line for supplying a cooling fluid into the block insertion space, and the It may further include a cooling fluid discharge line for discharging the cooling fluid in the block insertion space.

In the present invention, a beam transmitting window through which a plurality of laser beams output from the optical fiber array block member passes may be positioned on the front surface of the connector insertion unit.

In the present invention, a coupling guide rail for guiding an insertion position of the connector body for beam coupling is protrudingly positioned on either side of both sides of the connector body for beam coupling and the inner side of the connector insertion section, and the connector body for coupling the beam protrudes. A rail insertion groove portion into which the coupling guide rail portion is inserted may be positioned on the other of both sides of the portion and the inner surface of the connector insertion portion.

An embodiment of a multi-wavelength beam coupling connector structure according to the present invention and an embodiment of a multi-wavelength beam coupling device having the same lock or unlock the position of the connector body for beam coupling inserted into the connector insertion part It may further include a connector position lock.

In the present invention, the connector position locking part includes a locking member positioned to protrude outwardly from the rear end of the connector body for beam coupling, an inserting part for locking positioned at the inlet side of the connector inserting part and into which the locking member is inserted, and the locking part. It may include a locking position fixing portion capable of fixing or releasing the position of the locking member inserted into the insertion portion for use.

In the present invention, the locking member is a locking ring member having a ring-shaped body, and the locking insertion part is a locking knob member having a cylindrical coupling space into which the locking ring member is inserted and engaged, and the locking position The fixing part includes a first screw part positioned on the outer circumferential surface of the locking ring member and a second screw part positioned on the inner circumferential surface of the locking knob member and to which the first screw part is screwed, and the locking knob member is a housing for a beam coupling module. It is rotatably located in the front and rear and is movably positioned to be screwed with the lock ring member while inserting the lock ring member therein to fix the position of the connector body for beam coupling.

In the present invention, the locking position fixing part may be a locking bolt member that is fastened through the locking insert and presses the outer surface of the locking member inserted into the locking insert to fix it.

The present invention has the effect of securing convenience during manufacture and easy movement and maintenance by separably combining the beam coupling module body and the laser module assembly with a connector structure.

The present invention has the effect of cooling the optical fiber array block when combining a multi-wavelength beam, greatly improving stability when combining a multi-wavelength laser beam, and improving the durability of the device.

The present invention is a guide rail structure that guides the coupling and separation of the connector so that it is possible to assemble the connector at an accurate position, whereby the quality of the beam coupling can be uniformly maintained when the multi-wavelength laser beam is coupled, and the effect of further improving the stability there is

1 is a schematic diagram illustrating a general multi-wavelength beam coupling device as a comparative example of a multi-wavelength beam coupling device according to the present invention.
Figure 2 is a schematic diagram showing an embodiment of a multi-wavelength beam coupling device having a connector structure for coupling a multi-wavelength beam according to the present invention.
3 is a schematic diagram illustrating a laser module assembly and a beam coupling module in a multi-wavelength beam coupling device having a connector structure for coupling a multi-wavelength beam according to the present invention.
4 and 5 are views showing an embodiment of the connector body for beam coupling in the multi-wavelength beam coupling connector structure according to the present invention.
6 and 7 are partially enlarged perspective views showing an embodiment of the coupling structure of the connector body and the connector insert for beam coupling in the multi-wavelength beam coupling connector structure according to the present invention.

The present invention will be described in more detail.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows. Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to conventional or dictionary meanings. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 is a schematic diagram illustrating a general multi-wavelength beam coupling device as a comparative example of a multi-wavelength beam coupling device according to the present invention. Referring to FIG. 1 , a general multi-wavelength beam coupling device includes a plurality of laser beams through a plurality of output optical fibers. and a beam combining module 20 for combining a plurality of laser beams outputted from the laser module assembly 1 and the laser module assembly 10 for outputting and outputting the combined beam.

The laser module assembly 10 includes a plurality of laser modules 11 for generating a laser beam, and a plurality of transmission optical fibers 12 respectively connected to the laser module 11 .

In addition, the beam coupling module 20 is connected to the array block 21 and the array block 21 located in the housing for the beam coupling module 20 by fusion, and the other end is the transmission optical fiber 12 . A plurality of output optical fibers 22 connected to, a transmission mirror 23 positioned in the housing 20a for the beam combining module and reflecting the plurality of laser beams output from the array block 21, the housing 20a for the beam combining module ) and includes a diffraction grating 24 for coupling a plurality of laser beams reflected from the transmission mirror 23 .

Then, the output optical fiber 22 and the transmission optical fiber 12 are fused and connected from the outside of the housing 20a for the beam combining module.

The fusion portion of the output optical fiber 22 and the transmission optical fiber 12 is covered by the fusion portion protection jig 31, and a plurality of output optical fibers 22 and a plurality of transmission optical fibers 12 positioned at each fusion portion of the fusion part protection jig 31 is located in the fusion part protection box 30 .

The laser light source for multi-wavelength beam coupling, that is, the laser light source included in each laser module 11 uses a narrow wavelength line width to maintain excellent beam quality even after diffraction in the diffraction grating 24 .

This causes high nonlinearity in the laser amplification process, and in particular, the length of the transmission optical fiber 12 that can be used for guided Brillouin scattering is limited. As a result, the total optical fiber length of the transmission optical fiber 12 and the output optical fiber 22 used in the laser module 11 and the array block 21 is limited, and the fusion process is quite difficult because fusion must be performed using a limited optical fiber length. .

In particular, since the welding must be performed in a state in which the beam coupling module 20 and the laser module assembly 10 are fixed, it is quite difficult to arrange the welding machine itself.

And, after the fusion, the fusion part is fixed to the fusion part protection jig 31 , and the fusion part protection jig 31 is located in a separate fusion part protection box 30 .

The general multi-wavelength beam combining device configured in this way is difficult to separate and moves unless the transmission optical fiber 12 or the output optical fiber 22 is cut. There are difficulties in moving the coupling device.

Figure 2 is a schematic diagram showing an embodiment of a multi-wavelength beam coupling device having a connector structure for coupling a multi-wavelength beam according to the present invention, Figure 3 is provided with a connector structure for coupling a multi-wavelength beam according to the present invention It is a schematic diagram illustrating an embodiment of a laser module assembly and a beam coupling module, that is, a housing for coupling a beam in a wavelength beam coupling device, and FIGS. 4 and 5 are a connector for coupling a beam in a connector structure for coupling a multi-wavelength beam according to the present invention It is a view showing an embodiment of the body portion (200).

An embodiment of a connector structure for coupling a multi-wavelength beam according to the present invention and an embodiment of a multi-wavelength beam coupling device having the same will be described in detail below with reference to FIGS. 2 to 5 .

An embodiment of the connector structure for combining a multi-wavelength beam according to the present invention includes an optical fiber cable body 100 in which a plurality of optical fiber members 110 for outputting a laser beam are wrapped with an outer sheath.

The optical fiber cable body 100 connects the laser module assembly 10 that generates a laser and the connector body 200 for beam coupling.

The laser module assembly 10 includes a plurality of laser modules 11 including a light source for generating a laser beam, and the plurality of laser modules 11 are located in a housing 10a for a laser module.

As an example, the laser module 11 outputs laser beams having different wavelengths through a light source.

A transmission optical fiber is connected to each laser module 11, and the light generated from the light source is transmitted through the transmission optical fiber.

The optical fiber cable body 100 includes a plurality of optical fiber members 110 and a plurality of optical fibers connecting the plurality of laser modules 11 of the laser module assembly 10 and the optical fiber array block member in the connector body 200 for beam coupling. It includes an outer skin material 120 that surrounds and protects the member 110 .

In addition, the optical fiber member 110 has a plurality of first optical fibers 111 respectively connected to the plurality of laser modules 11 , one end of which is fused to the plurality of first optical fibers 111 , respectively, and the other end of which is connected to the plurality of first optical fibers 111 , respectively. A plurality of second optical fibers 112 fused to the optical fiber array block member in the connector body 200 for beam coupling are included.

In addition, the optical fiber cable body 100 further includes a fusion part protection member 130 for protecting the fusion part of the first optical fiber 111 and the second optical fiber 112 inside the outer skin member 120 .

The fusion part protection member 130 is protected by being wrapped with the outer skin material 120 , and a more detailed description is omitted as it is a known configuration for protecting the fusion part of the optical fiber.

The outer skin material 120 can be freely bent, such as synthetic resin, and wraps around the plurality of first optical fibers 111 and the plurality of second optical fibers 112 and the optical fiber fusion part protective member 130 and is made of a known material. The optical fiber cable body 100 is positioned in a state in which the outer skin member 120 is peeled off, respectively, inside the housing 10a for the laser module and the inside of the connector body 200 for beam coupling.

A plurality of first optical fibers 111 from which the outer skin material 120 is peeled off are positioned at least partially inside the housing 10a for the laser module, and the outer skin material 120 is peeled off inside the connector body 200 for beam coupling. A plurality of second optical fibers 112 are at least partially positioned so that the plurality of second optical fibers 112 are connected to the optical fiber array block member 210 .

In addition, a cable adapter 10b connected to the outer skin material 120 is located in the housing 10a for the laser module, and the cable adapter 10b is variously modified into a known adapter structure for connecting cables. It should be noted that a more detailed description of the bar will be omitted.

The optical fiber array block member 210 is positioned in the connector body 200 for beam coupling, and end sides of the plurality of second optical fibers 112 are fused to the incident surface, respectively.

In addition, the output surface of the optical fiber array block member 210 is positioned toward the transmission mirror 23 to output a plurality of laser beams and irradiate them with the transmission mirror 23 .

The optical fiber array block member 210 can transmit a laser beam, such as glass, and is made of a known material that has little absorption with respect to the wavelength of the laser beam, and a detailed description thereof will be omitted.

The optical fiber array block member 210 is positioned inside the connector body 200 for beam coupling, and the output surface is exposed to the front of the connector body 200 for beam coupling.

The connector body 200 for beam coupling has excellent thermal conductivity and is made of an inexpensive aluminum material or an aluminum alloy material as an example.

In addition, the connector body 200 for beam coupling has excellent thermal conductivity and is made of inexpensive aluminum material and aluminum alloy material as an example, and in addition to other known materials such as copper having excellent thermal conductivity. .

In the connector body 200 for beam coupling, the optical fiber array block member 210 is positioned therein, and a block insertion space 201 that can be filled with a cooling fluid for cooling the optical fiber array block member 210 is positioned.

One embodiment of the connector structure for coupling a multi-wavelength beam according to the present invention is a cooling fluid supply line 400 for supplying a cooling fluid into the block insertion space 201 , and cooling for discharging the cooling fluid in the block insertion space 201 . It may further include a fluid discharge line unit (500).

The cooling fluid supply line unit 400 and the cooling fluid discharge line unit 500 are connected to the cooling fluid circulation supply unit to circulate the cooling fluid filled in the block insertion space 201 to circulate the cooling fluid in the beam coupling connector body 200, that is, The optical fiber array block member 210 positioned in the block insertion space 201 and the plurality of second optical fibers 112 fused to the optical fiber array block member 210 are cooled.

Although not shown, the cooling fluid circulation supply unit stores the cooling fluid and a storage tank connected to the cooling fluid supply line unit 400 and the cooling fluid discharge line unit 500, the cooling fluid supply line unit 400 or the cooling fluid discharge line unit A pump located at 500 to supply the cooling fluid in the storage tank to the gas injection unit, a valve located at the cooling fluid supply line 400 to open and close the flow path of the cooling fluid supply line 400, and the like. It is pointed out that it can be implemented with various modifications using the structure.

In addition, the cooling fluid supply unit may further include a cooling unit that cools the cooling fluid in the storage tank, that is, the cooling water back to a preset temperature, and the cooling unit is variously modified using a known cooling device such as a radiator or a chiller. make it clear that

The optical fiber array block member 210 and the plurality of second optical fibers 112 fused to the optical fiber array block member 210 are heated while outputting a plurality of laser beams to combine the multi-wavelength laser beams.

Accordingly, one embodiment of the connector structure for coupling a multi-wavelength beam according to the present invention circulates the cooling fluid filled in the block insertion space 201 through the cooling fluid circulation supply unit to circulate in the connector body 200 for beam coupling, that is, insert the block. The optical fiber array block member 210 positioned in the space 201 and the plurality of second optical fibers 112 fused to the optical fiber array block member 210 are cooled to prevent thermal deformation of the optical fiber array block member 210, It allows the optical fiber array block member 210 to be stably positioned in a fused state.

On the other hand, the connector body 200 for beam coupling is a beam coupling module, that is, the transmission mirror 23 and the diffraction grating 24 are located therein so as to be detachably detachable from the housing 20a for the beam coupling module for coupling the laser beam. It can be combined and separated from the housing 20a for the beam coupling module.

Inside the housing 20a for the beam combining module, a transmission mirror 23 that reflects the plurality of laser beams output from the optical fiber array block member 210, and a diffraction grating that combines the plurality of beams reflected from the transmission mirror 23 (24) back is positioned.

The housing 20a for the beam coupling module has a coupling beam transmission window 20b that passes the coupled beam coupled by the diffraction grating 24 on one surface, has excellent thermal conductivity, and is made of inexpensive aluminum material and aluminum alloy material. As an example, in addition, it is revealed that it is possible to manufacture with other known materials such as copper having excellent thermal conductivity.

The configuration located inside the housing 20a for the beam coupling module to combine the multi-wavelength laser beam, such as the transmission mirror 23, the diffraction grating 24, etc. It should be noted that detailed descriptions are omitted.

The housing 20a for the beam coupling module is characterized in that it includes a connector insertion part 300 into which the connector body 200 for beam coupling is inserted and detachably coupled therein.

The connector insertion unit 300 is made of an aluminum material, has an open shape on one side, and the connector body 200 for beam coupling is inserted into the open side with an open side, and output from the optical fiber array block member 210 on the front side. A beam transmitting window 310 through which a plurality of laser beams are passed is positioned.

The connector insert 300 has excellent thermal conductivity and is made of an inexpensive aluminum material or an aluminum alloy material as an example.

In addition, the beam transmission field can transmit a laser beam, such as glass, and is made of a known material that has little absorption with respect to the wavelength of the laser beam, and a detailed description thereof will be omitted.

The beam transmitting window 310 is positioned to correspond to the optical fiber array block member 210 positioned to be exposed on the front of the connector body 200 for beam coupling, so that a plurality of laser beams output from the optical fiber array block member 210 is It is passed so that it can be irradiated toward the transmission mirror (23).

A coupling guide rail 220 guiding the insertion position of the connector body 200 for beam coupling protrudes from either side of both sides of the connector body 200 for beam coupling and the inner side of the connector insertion part 300 The rail insertion groove 320 into which the coupling guide rail 220 is inserted is located on the other side of both sides of the connector body 200 for beam coupling and the inner side of the connector insertion part 300 .

The rail insertion groove 320 is formed to be long in the insertion direction of the connector body 200 for beam coupling, and is used for beam coupling while moving the coupling guide rail 220 along the insertion direction of the connector body 200 for beam coupling. Guide the insertion position of the connector body (200).

The connector body 200 for beam coupling is the correct position, that is, the optical fiber array block member 210, while the coupling guide rail 220 is inserted into the rail insertion groove 320 when it is inserted into the connector insertion part 300. Position it precisely so that the and transmission window correspond to each other.

In addition, the connector structure for coupling a multi-wavelength beam according to the present invention further includes a connector position locking part 600 for locking or unlocking the position of the connector body part 200 for beam coupling inserted into the connector insertion part 300 . do.

The connector position locking part 600 is located on the inlet side of the locking member 610 positioned to protrude outwardly from the rear end side of the connector body 200 for beam coupling, the connector insertion part 300, and the locking member ( It includes a locking insertion unit 620 into which 610 is inserted, and a locking position fixing unit 630 capable of fixing or releasing the position of the locking member 610 inserted into the locking insertion unit 620 .

6 and 7 are partially enlarged perspective views illustrating an embodiment of the connector position locking unit 600 in the connector structure for coupling a multi-wavelength beam according to the present invention.

Referring to FIG. 6 , the locking member 610 is a locking ring member 611 having a ring-shaped body, and the locking insert 620 is a cylindrical coupling space into which the locking ring member 611 is inserted and coupled. It is a locking knob member 621 having a.

And, the locking position fixing part 630 is located on the inner peripheral surface of the first screw part 631 located on the outer peripheral surface of the locking ring member 611, the locking knob member 621, the first screw part 631 is screw-coupled It includes a second screw part 632, and the locking knob member 621 is rotatable in the housing 20a for the beam coupling module and is positioned to be movable forward and backward while inserting the locking ring member 611 therein. It is screwed with the lock ring member 611 to fix the position of the lock ring member 611, that is, the position of the connector body 200 for coupling the beam.

The locking knob member 621 is rotated in the opposite direction and separated from the locking ring member 611 while the screw coupling is released, thereby making it easier to separate the connector body 200 for beam coupling from the connector insertion part 300 . can

In addition, referring to FIG. 7 , the locking position fixing part 630 is fastened through the locking insertion part 620 to press and fix the outer surface of the locking member 610 inserted into the locking insertion part 620 . The locking bolt member 633 is taken as an example.

The locking insertion part 620 has a bolt hole through which the locking bolt member 633 is penetrated and fastened, and the locking bolt member 633 is fastened through the bolt hole to the end side of the locking member 610. By pressing the side, the position of the locking member 610, that is, the position of the connector body 200 for coupling the beam may be fixed.

The locking bolt member 633 is released from the bolt hole to unlock the position of the connector body 200 for beam coupling, and to easily separate the connector body 200 for beam coupling from the connector insertion part 300 . can

The locking position fixing unit 630 may be implemented using various known locking structures capable of locking and releasing the position of the locking member 610 inserted into the locking insertion unit in addition to the locking structures illustrated in FIGS. 6 and 7 . make it clear that you can

According to the present invention, the beam coupling module body and the laser module assembly 10 are detachably coupled to each other in a connector structure to secure convenience in manufacturing and to facilitate movement and maintenance.

The present invention has the effect of cooling the optical fiber array block when combining a multi-wavelength beam, greatly improving stability when combining a multi-wavelength laser beam, and improving the durability of the device.

The present invention is a guide rail structure that guides the coupling and separation of the connector so that it is possible to assemble the connector at an accurate position, whereby the quality of the beam coupling can be uniformly maintained when the multi-wavelength laser beam is coupled, and the effect of further improving the stability there is

It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented with various modifications without departing from the gist of the present invention, which is included in the configuration of the present invention.

10: laser module assembly 10a: housing for laser module
11: laser module 12: transmission optical fiber
20: beam coupling module 20a: housing for beam coupling module
21: array block 22: output optical fiber
23: transmission mirror 24: diffraction grating
30: fusion part protection box 31: fusion part protection jig
100: optical fiber cable body 110: optical fiber member
111: first optical fiber 112: second optical fiber
120: outer skin material 130: fusion part protection member
200: connector body for beam coupling 201: block insertion space
210: optical fiber array block member 220: coupling guide rail unit
300: connector insert 310: beam transmission window
320: rail insertion groove 400: cooling fluid supply line part
500: cooling fluid discharge line part 600: connector position locking part
610: locking member 611: locking ring member
620: locking insertion part 621: locking knob member
630: lock position fixing part 631: first screw part
632: second screw part 633: bolt member for locking

Claims (24)

an optical fiber cable body in which a plurality of optical fiber members for outputting a laser beam are wrapped with an outer skin material;
A connector body for beam coupling that is located at the end of the fiber optic cable body, has an optical fiber array block member to which a plurality of optical fiber members are fused therein, and outputs a plurality of laser beams through the optical fiber array block member at the end side ; and
A transmission mirror and a diffraction grating are positioned therein, and it is positioned in a housing for a beam coupling module for coupling a plurality of laser beams therein, and includes a connector insertion part into which the connector body for beam coupling is inserted and detachably coupled,
The optical fiber array block member,
It is located inside the connector body for the beam coupling, and the output surface is exposed to the front of the connector body for the beam coupling,
A beam transmitting window through which a plurality of laser beams output from the optical fiber array block member passes is positioned on the front surface of the connector insertion part,
On either side of both sides of the connector body for beam coupling and the inner side of the connector insertion part, coupling guide rails for guiding the insertion position of the connector body for beam coupling are positioned to protrude, both side surfaces of the connector body for beam coupling and a rail insertion groove into which the coupling guide rail is inserted is located on the other side of the inner surface of the connector insertion part,
Further comprising a connector position locking portion for locking or unlocking the position of the connector body portion for coupling the beam inserted into the connector insertion portion,
A block insertion space in which a cooling fluid for cooling the optical fiber array block member can be filled is located in the connector body for beam coupling;
a cooling fluid supply line for supplying a cooling fluid into the block insertion space; and
Further comprising a cooling fluid discharge line unit for discharging the cooling fluid in the block insertion space, the cooling fluid supply line and the cooling fluid discharge line unit is connected to the cooling fluid circulation supply unit to circulate the cooling fluid filled in the block insertion space, ,
The connector body for coupling the beam is a connector structure for coupling a multi-wavelength beam, characterized in that it is made of an aluminum material or an aluminum alloy material.
The method according to claim 1,
The optical fiber cable body,
a plurality of optical fiber members connecting the plurality of laser modules of the laser module assembly and the optical fiber array block member; and
A connector structure for coupling a multi-wavelength beam, characterized in that it includes a cable outer skin material that surrounds and protects the plurality of optical fiber members.
3. The method according to claim 2,
The optical fiber member,
a plurality of first optical fibers respectively connected to the plurality of laser modules;
a plurality of second optical fibers having one end side fused to the plurality of first optical fibers, respectively, and the other end side being fused to the optical fiber array block member in the connector body for beam coupling; and
and a fusion part protection member for protecting the fusion part of the first optical fiber and the second optical fiber from the inside of the outer skin member.
delete delete delete delete delete delete The method according to claim 1,
The connector position locking part,
a locking member positioned to protrude outwardly from the rear end of the connector body for coupling the beam;
a locking insertion unit positioned on the inlet side of the connector insertion unit and into which a locking member is inserted; and
and a locking position fixing part capable of fixing or releasing the position of the locking member inserted into the locking insertion part.
11. The method of claim 10,
The locking member is a locking ring member having a ring-shaped body, and the locking insertion part is a locking knob member having a cylindrical coupling space into which the locking ring member is inserted and engaged;
The locking position fixing part,
a first screw portion positioned on an outer circumferential surface of the locking ring member; and
and a second screw portion positioned on the inner circumferential surface of the locking knob member and to which the first screw portion is screwed,
The locking knob member is rotatably located in the housing for the beam coupling module, and is moved forward and backward, and is screwed with the locking ring member while inserting the locking ring member into the housing to determine the position of the connector body for beam coupling. A connector structure for coupling a multi-wavelength beam, characterized in that it is fixed.
11. The method of claim 10,
The locking position fixing part,
and a locking bolt member which is fastened through the locking insert and presses and fixes the outer surface of the locking member inserted into the locking insert.
a laser module assembly including a plurality of laser modules including a light source for generating a laser beam;
an optical fiber cable body in which a plurality of optical fiber members connected to the laser module assembly and outputting a laser beam are wrapped with an outer skin material;
A connector body for beam coupling that is located at the end of the fiber optic cable body, has an optical fiber array block member to which a plurality of optical fiber members are fused therein, and outputs a plurality of laser beams through the optical fiber array block member at the end side ;
A housing for a beam coupling module in which a transmission mirror and a diffraction grating are positioned to combine a plurality of laser beams; and
It is located in the housing for the beam coupling module and includes a connector insertion part into which the connector body part for beam coupling is inserted and detachably coupled,
The optical fiber array block member,
It is located inside the connector body for the beam coupling, and the output surface is exposed to the front of the connector body for the beam coupling,
A beam transmitting window through which a plurality of laser beams output from the optical fiber array block member passes is positioned on the front surface of the connector insertion part,
On either side of both sides of the connector body for beam coupling and the inner side of the connector insertion part, coupling guide rails for guiding the insertion position of the connector body for beam coupling are positioned to protrude, both side surfaces of the connector body for beam coupling and a rail insertion groove into which the coupling guide rail is inserted is located on the other side of the inner surface of the connector insertion part,
Further comprising a connector position locking portion for locking or unlocking the position of the connector body portion for coupling the beam inserted into the connector insertion portion,
A block insertion space in which a cooling fluid for cooling the optical fiber array block member can be filled is located in the connector body for beam coupling;
a cooling fluid supply line for supplying a cooling fluid into the block insertion space; and
Further comprising a cooling fluid discharge line unit for discharging the cooling fluid in the block insertion space, the cooling fluid supply line and the cooling fluid discharge line unit is connected to the cooling fluid circulation supply unit to circulate the cooling fluid filled in the block insertion space, ,
The multi-wavelength beam coupling device, characterized in that the beam coupling connector body portion is made of an aluminum material or an aluminum alloy material.
14. The method of claim 13,
The optical fiber cable body,
a plurality of optical fiber members connecting the plurality of laser modules of the laser module assembly and the optical fiber array block member; and
Multi-wavelength beam combining device comprising a cable outer skin material for protecting the plurality of optical fiber members.
15. The method of claim 14,
The optical fiber member,
a plurality of first optical fibers respectively connected to the plurality of laser modules;
a plurality of second optical fibers having one end side fused to the plurality of first optical fibers, respectively, and the other end side being fused to the optical fiber array block member in the connector body for beam coupling; and
and a fusion part protecting member for protecting the fusion part of the first optical fiber and the second optical fiber from the inside of the outer skin material.
delete delete delete delete delete delete 14. The method of claim 13,
The connector position locking part,
a locking member positioned to protrude outwardly from the rear end of the connector body for coupling the beam;
a locking insertion unit positioned on the inlet side of the connector insertion unit and into which a locking member is inserted; and
and a locking position fixing part capable of fixing or releasing the position of the locking member inserted into the locking insertion part.
23. The method of claim 22,
The locking member is a locking ring member having a ring-shaped body, and the locking insertion part is a locking knob member having a cylindrical coupling space into which the locking ring member is inserted and engaged;
The locking position fixing part,
a first screw portion positioned on an outer circumferential surface of the locking ring member; and
and a second screw portion positioned on the inner circumferential surface of the locking knob member and to which the first screw portion is screwed,
The locking knob member is rotatably located in the housing for the beam coupling module, and is moved forward and backward, and is screwed with the locking ring member while inserting the locking ring member into the housing to determine the position of the connector body for beam coupling. Multi-wavelength beam coupling device, characterized in that it is fixed.
23. The method of claim 22,
The locking position fixing part,
and a locking bolt member which is fastened through the locking insert and presses and fixes the outer surface of the locking member inserted into the locking insert.

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