CN102570263B - Device and method for improving working frequencies of lamp pump laser amplifiers - Google Patents
Device and method for improving working frequencies of lamp pump laser amplifiers Download PDFInfo
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- CN102570263B CN102570263B CN 201110137671 CN201110137671A CN102570263B CN 102570263 B CN102570263 B CN 102570263B CN 201110137671 CN201110137671 CN 201110137671 CN 201110137671 A CN201110137671 A CN 201110137671A CN 102570263 B CN102570263 B CN 102570263B
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Abstract
The invention relates to a device and a method for improving the working frequencies of lamp pump laser amplifiers. The device comprises a plurality of paths of parallel arranged lamp pump laser amplifiers with the same middle axis, a first reflector which is arranged on the middle axis of the lamp pump laser amplifiers and capable of rotating 360 degrees around the center of the first reflector and a second reflector which is capable of revolving 360 degrees around the first reflector along a circumference formed by the centers of glass sticks of the lamp pump laser amplifiers. Due to rotation of the first reflector and revolution of the second reflector around the first reflector, incident light enters the corresponding lamp pump laser amplifiers for working after sequentially penetrating through the first reflector and the second reflector; a mode of sequentially rotating the lamp pump laser amplifiers to working positions in the conventional method is replaced, so that the mechanical structure is simple, and a light path is adjusted conveniently and reliably; and furthermore, the far field directivity of laser can be improved, and a requirement on a short working interval of the lamp pump laser amplifiers in a large complicated laser amplifier is met.
Description
Technical field
The present invention relates to the laser application technique field, relate in particular to the device and method that requires to improve in the relatively shorter situation of lamp pumping image intensifer operation range lamp pumping image intensifer operating frequency in a kind of large complicated laser amplifier.
Background technology
Because lamp pumping image intensifer can not work under repetition, namely work once after, need to wait for that certain hour could work once again, its operating frequency is less.Therefore need to improve lamp pumping image intensifer operating frequency, a kind of method that usually improves lamp pumping image intensifer operating frequency is that a plurality of lamp pumping image intensifers of combination use in turn.For example, if the operating frequency of single lamp pumping image intensifer is 1/20min
-1, i.e. every work once need be waited for 20 minutes, makes it in running order successively in order by making up 4 lamp pumping image intensifers, then operating frequency improves 1/5min
-1, only need to wait for 5 minutes and just can make the work of lamp pumping image intensifer once.Conventional method is: with rotary-type placement 4 lamp pumpings image intensifer (as shown in Figure 1), successively each lamp pumping image intensifer was positioned over the service position every 5 minutes.Because lamp pumping image intensifer volume is large, quality is heavy, and in order to cooperate the needs of actual frequency of utilization, conventional method needs complicated Machine Design and heavy rotary-type device, and its single unit system takes up space greatly, and cost is high, is unfavorable for operation.
Summary of the invention
Main contents of the present invention are to provide a kind of device of simple in structure, raising lamp pumping image intensifer operating frequency that cost is low, and the method to installing.
In order to achieve the above object, the present invention proposes a kind of device that improves lamp pumping image intensifer operating frequency, the lamp pumping image intensifer that comprises the Multichannel Parallel placement with same axis, also comprise: be arranged on the first speculum on the axis of described Multi-path lamp pumping image intensifer, and described the first speculum can 360 ° of rotations; Be arranged on the second speculum on the circumference that each center glass rod of described Multi-path lamp pumping image intensifer forms, and described the second speculum can be along described circumference around 360 ° of revolution of the first speculum; The interval scheduled time, the first speculum rotation predetermined angular, the second speculum rests on a wherein street lamp pumping image intensifer center glass rod behind the first speculum revolution predetermined angular, incident light is incident to this street lamp pumping image intensifer through first, second speculum successively.Preferably, the described scheduled time equals the operating time of each street lamp pumping image intensifer.
Preferably, when described Multi-path lamp pumping image intensifer work, the reflecting surface of the first speculum remains relative with the reflecting surface of the second speculum.
Preferably, also comprise the first fixed mount on the axis that is arranged on Multi-path lamp pumping image intensifer, described the first speculum by described the first fixed mount around described the first speculum center rotation.Preferably, also comprise rotatable the second fixed mount; Described the second speculum is arranged on the second fixed mount, and described the second speculum revolves round the sun around the first speculum along the circumference that each center glass rod of described Multi-path lamp pumping image intensifer forms.
Preferably, described predetermined angular is the angle between the middle axial plane of adjacent two lamp pumping image intensifers.
Preferably, described lamp pumping image intensifer is four the tunnel; Described predetermined angular is 90 °.
Preferably, the described scheduled time is 5 minutes.
Preferably, the distance at the center of described the second speculum center and the first speculum axis that equals Multi-path lamp pumping image intensifer is to the distance of a street lamp pumping image intensifer center glass rod wherein.
The present invention also proposes a kind of method that improves lamp pumping image intensifer operating frequency, may further comprise the steps:
The first speculum is fixed on the first fixed mount, the first speculum center is on the axis of Multi-path lamp pumping image intensifer; The second speculum is fixed on the second fixed mount, makes circumference that the second speculum can form along each center glass rod of Multi-path lamp pumping image intensifer around 360 ° of revolution of the first speculum;
Within the operating time of Multi-path lamp pumping image intensifer, every interval scheduled time, the first speculum rotation predetermined angular, the second speculum rests on a wherein street lamp pumping image intensifer center glass rod successively around the first speculum described predetermined angular that revolves round the sun; The described scheduled time equals the operating time of each street lamp pumping image intensifer;
When the second speculum rested on wherein a street lamp pumping image intensifer center glass rod, incident light was incident to this street lamp pumping image intensifer through first, second speculum successively, makes this street lamp pumping image intensifer work once;
When the second speculum was covered all lamp pumping image intensifer center glass rods, the operating time of Multi-path lamp pumping image intensifer finished, and Multi-path lamp pumping image intensifer is finished the one action process.
Preferably, described predetermined angular is the angle between the middle axial plane of adjacent two lamp pumping image intensifers.
A kind of device and method that improves lamp pumping image intensifer operating frequency that the present invention proposes, rotation by the first speculum and the second speculum are around the revolution of the first speculum, make incident light enter the work of corresponding lamp pumping image intensifer through the first speculum and the second speculum successively, substitute in the conventional method and rotate successively each street lamp pumping image intensifer to the mode of service position, thereby so that mechanical structure is simple, the adjustment light path is convenient and reliable, but also can improve the far field directive property of laser, satisfied the situation that requires lamp pumping image intensifer operation range relatively shorter in the large complicated laser amplifier.
In order to make technical scheme of the present invention clearer, clear, be described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of four street lamp pumping image intensifers in the prior art.
Fig. 2 is the device one example structure schematic diagram that the present invention improves lamp pumping image intensifer operating frequency.
Fig. 3 is the first speculum rotation and the second speculum revolution schematic diagram in above-described embodiment.
Fig. 4 a is the light path schematic diagram when A street lamp pumping image intensifer is worked among Fig. 2.
Fig. 4 b is the light path schematic diagram when B street lamp pumping image intensifer is worked among Fig. 2.
Fig. 4 c is the light path schematic diagram when C street lamp pumping image intensifer is worked among Fig. 2.
Fig. 4 d is the light path schematic diagram when D street lamp pumping image intensifer is worked among Fig. 2.
Fig. 5 is the method flow diagram that the present invention improves lamp pumping image intensifer operating frequency.
Embodiment
Such as Fig. 2, shown in Figure 3, one embodiment of the invention proposes a kind of device that improves lamp pumping image intensifer operating frequency, comprise lamp pumping image intensifer, the first mirror M 0 and the second mirror M 1 that Multichannel Parallel is placed, wherein: the first mirror M 0, be arranged on the axis of Multi-path lamp pumping image intensifer, and can be around the 360 ° of rotations in its center; The second mirror M 1, be arranged on the circumference of each center glass rod formation of Multi-path lamp pumping image intensifer, the axis that the distance at the center of its center and the first mirror M 0 equals Multi-path lamp pumping image intensifer is to the distance of a street lamp pumping image intensifer center glass rod wherein, and the circumference that the second mirror M 1 can form along each center glass rod of Multi-path lamp pumping image intensifer is around 0360 ° of revolution of the first mirror M; Every interval scheduled time, the first mirror M 0 rotation predetermined angular, the second mirror M 1 rests on a wherein street lamp pumping image intensifer center glass rod behind the first mirror M 0 revolution predetermined angular, make incident light be incident to this street lamp pumping image intensifer through first, second mirror M 0, M1 successively, make this street lamp pumping image intensifer work once.
Wherein, the scheduled time equals the operating time of each street lamp pumping image intensifer.Above-mentioned predetermined angular is the angle between the middle axial plane of adjacent two street lamp pumping image intensifers, and the middle axial plane of lamp pumping image intensifer refers to the center line of lamp pumping image intensifer and the plane that the axis forms.
Describe as an example of four street lamp pumping image intensifers example in the present embodiment.
Particularly, as shown in Figure 2, be the device one example structure schematic diagram that the present invention improves lamp pumping image intensifer operating frequency, this device comprises:
The lamp pumping image intensifer of four tunnel parallel placements is respectively lamp pumping image intensifer A, lamp pumping image intensifer B, lamp pumping image intensifer C, lamp pumping image intensifer D, and this four street lamps pumping image intensifer has same axis;
The first mirror M 0 is arranged on the fixed position on the axis of Multi-path lamp pumping image intensifer, and can be around the 360 ° of rotations in its center;
The second mirror M 1, be arranged on the circumference of each center glass rod formation of Multi-path lamp pumping image intensifer, the axis that the distance at the center of its center and the first mirror M 0 equals Multi-path lamp pumping image intensifer is to the distance of a street lamp pumping image intensifer center glass rod wherein, and the circumference that the second mirror M 1 can form along each center glass rod of Multi-path lamp pumping image intensifer is around 0360 ° of revolution of the first mirror M.
Above-mentioned the first mirror M 0 and the second mirror M 1 can fix by corresponding fixed mount.
Particularly, can be provided with in the axis of four street lamp pumping image intensifers the first fixed mount (not shown), the first mirror M 0 is passed through this first fixed mount around its center rotation; Second fixed mount that can rotate around the axis is set simultaneously, the setting position of the second fixed mount can be set as required, and the second mirror M 1 can revolve round the sun around the first mirror M 0 along the circumference that each center glass rod of Multi-path lamp pumping image intensifer forms by the rotation of this second fixed mount.
When Multi-path lamp pumping image intensifer was worked, the reflecting surface of the first mirror M 0 remained relative with the reflecting surface of the second mirror M 1.
The below take four tunnel (A, B, C, D) the lamp pumping image intensifer operating time be each street lamp pumping image intensifer operating time as 20 minutes as 5 minutes as example explanation present embodiment device operation principle.
For four street lamp pumping image intensifers, angle between the middle axial plane of adjacent two street lamp pumping image intensifers is 90 °, therefore the predetermined angular of the predetermined angular of the rotation of the first mirror M 0 and 1 revolution of the second mirror M is 90 °, and the scheduled time at the interval that both rotate is 5 minutes.
As shown in Figures 2 and 3, the first mirror M 0 (hereinafter to be referred as M0) is placed in axis at four street lamp pumping image intensifers, M0 can be rotation around the 360 ° of rotations in its center, and the center of the second mirror M 1 (hereinafter to be referred as M1) equals four street lamp pumping image intensifers to the distance at the center of M0 axis is to the distance of a street lamp pumping image intensifer center glass rod wherein.
M1 revolves round the sun around M0, and it can be positioned at four street lamp pumping image intensifer center glass rod A, B, C, four points of D successively.When M1 revolution, M0 rotation and the work of four street lamp pumping image intensifers, the reflecting surface of M1 and M0 remains relative, in order to allow incident light reflect between the reflecting surface of these two speculums.(shown in Fig. 4 a, Fig. 4 b, Fig. 4 c and Fig. 4 d).
In the t=0 moment, incident light is through M0, M1, through A street lamp pumping image intensifer; Its light path is shown in Fig. 4 a;
In the t=5 moment, 90 ° of M0 rotations, M1 are around 90 ° of M0 revolution, and incident light is through M0, M1, through B street lamp pumping image intensifer; Its light path is shown in Fig. 4 b;
In the t=10 moment, again 90 ° of rotations of M0, M1 revolve round the sun 90 ° again around M0, and incident light is through M0, M1, through lower C street lamp pumping image intensifer; Its light path is shown in Fig. 4 c;
In the t=15 moment, again 90 ° of rotations of M0, M1 revolve round the sun 90 ° again around M0, and incident light is through M0, M1, through D street lamp pumping image intensifer; Its light path is shown in Fig. 4 d.
So circulation realizes making laser pass through a street lamp pumping image intensifer job once every 5 minutes.Its concrete light path signal as shown in Figure 2.
At above-mentioned M0 rotation and M1 in the scheme of M0 revolution, also can t=5 constantly make M0 along and above-mentioned opposite direction rotation, simultaneously M1 around M0 along the direction revolution identical with the M0 direction of rotation, so circulation.Equally, when M1 revolution, M0 rotation and the work of four street lamp pumping image intensifers, the reflecting surface of M1 and M0 remains relative, in order to allow incident light reflect between the reflecting surface of these two speculums.
In the present embodiment, the axis that equals four street lamp pumping image intensifers to the distance at the center of M0, the center of M1 is to the distance of a street lamp pumping image intensifer center glass rod wherein.
In other embodiments, the axis that can also be not equal to four street lamp pumping image intensifers to the distance at the center of M0, the center of M1 is to the distance of a street lamp pumping image intensifer center glass rod wherein.Be that M1 is positioned on the circumference that each center glass rod of Multi-path lamp pumping image intensifer forms, and the circumference that M1 can form along each center glass rod of Multi-path lamp pumping image intensifer is around 0360 ° of revolution of the first mirror M; And M0 is positioned over the fixed position on the axis of Multi-path lamp pumping image intensifer, and can be around the 360 ° of rotations in its center, the distance L at the center of the circle that this fixed position forms on the axis and with each center glass rod of Multi-path lamp pumping image intensifer, L is not 0, can set according to actual needs; M0 can be positioned on the axis of Multi-path lamp pumping image intensifer, and be positioned at the place ahead of each street lamp pumping image intensifer apart from the center L of the circle of each center glass rod formation of Multi-path lamp pumping image intensifer.Then the method by corresponding rotation M0 and M1 also can make incident light enter successively each road laser amplifier.
As shown in Figure 5, one embodiment of the invention proposes a kind of method of utilizing above-described embodiment device to improve lamp pumping image intensifer operating frequency, comprising:
Step S101 is fixed in the first mirror M 0 on the first fixed mount, and the first mirror M 0 center is on the axis of Multi-path lamp pumping image intensifer; The second mirror M 1 is fixed on the second fixed mount, makes circumference that the second mirror M 1 can form along each center glass rod of Multi-path lamp pumping image intensifer around 0360 ° of revolution of the first mirror M;
Wherein, the distance at the center of the center of the second mirror M 1 and the first mirror M 0 axis that can equal Multi-path lamp pumping image intensifer is to the distance of a street lamp pumping image intensifer center glass rod wherein.
Step S102, within the operating time of Multi-path lamp pumping image intensifer, every interval scheduled time, the first mirror M 0 rotation predetermined angular, the second mirror M 1 rests on a wherein street lamp pumping image intensifer center glass rod successively around the first mirror M 0 revolution predetermined angular;
Wherein, the scheduled time equals the operating time of each street lamp pumping image intensifer; Predetermined angular is the angle between the middle axial plane of adjacent two street lamp pumping image intensifers, and the middle axial plane of lamp pumping image intensifer refers to the center line of lamp pumping image intensifer and the plane that the axis forms.
Step S103, when the second mirror M 1 rested on wherein a street lamp pumping image intensifer center glass rod, incident light was incident to this street lamp pumping image intensifer through first, second mirror M 0, M1 successively, makes this street lamp pumping image intensifer work once;
When Multi-path lamp pumping image intensifer was worked, the first mirror M 0 remained relative with the reflecting surface of the second mirror M 1.
Step S104, when the second mirror M 1 was covered all lamp pumping image intensifer center glass rods, the operating time of Multi-path lamp pumping image intensifer finished, and Multi-path lamp pumping image intensifer is finished the one action process.
The below take four tunnel (A, B, C, D) the lamp pumping image intensifer operating time be each street lamp pumping image intensifer operating time as 20 minutes as 5 minutes as example explanation present embodiment device operation principle.
For four street lamp pumping image intensifers, angle between the middle axial plane of adjacent two street lamp pumping image intensifers is 90 °, therefore the predetermined angular of the predetermined angular of the rotation of the first mirror M 0 and 1 revolution of the second mirror M is 90 °, and the scheduled time at the interval that both rotate is 5 minutes.
As shown in Figures 2 and 3, the first mirror M 0 (hereinafter to be referred as M0) is placed in axis at four street lamp pumping image intensifers, M0 can be rotation around the 360 ° of rotations in its center, and the center of the second mirror M 1 (hereinafter to be referred as M1) equals four street lamp pumping image intensifers to the distance at the center of M0 axis is to the distance of a street lamp pumping image intensifer center glass rod wherein.M1 revolves round the sun around M0, and it can be positioned at four street lamp pumping image intensifer center glass rod A, B, C, four points of D successively.When M1 revolution, M0 rotation and the work of four street lamp pumping image intensifers, the reflecting surface of M1 and M0 remains relative, in order to allow incident light reflect between the reflecting surface of these two speculums.(shown in Fig. 4 a, Fig. 4 b, Fig. 4 c and Fig. 4 d).
In the t=0 moment, incident light is through M0, M1, through A street lamp pumping image intensifer; Its light path is shown in Fig. 4 a;
In the t=5 moment, 90 ° of M0 rotations, M1 are around 90 ° of M0 revolution, and incident light is through M0, M1, through B street lamp pumping image intensifer; Its light path is shown in Fig. 4 b;
In the t=10 moment, again 90 ° of rotations of M0, M1 revolve round the sun 90 ° again around M0, and incident light is through M0, M1, through lower C street lamp pumping image intensifer; Its light path is shown in Fig. 4 c;
In the t=15 moment, again 90 ° of rotations of M0, M1 revolve round the sun 90 ° again around M0, and incident light is through M0, M1, through D street lamp pumping image intensifer; Its light path is shown in Fig. 4 d.
So circulation realizes making laser pass through a street lamp pumping image intensifer job once every 5 minutes.Its concrete light path signal as shown in Figure 2.
At above-mentioned M0 rotation and M1 in the scheme of M0 revolution, also can t=5 constantly make M0 along and above-mentioned opposite direction rotation, simultaneously M1 around M0 along the direction revolution identical with the M0 direction of rotation, so circulation.Equally, when M1 revolution, M0 rotation and the work of four street lamp pumping image intensifers, the reflecting surface of M1 and M0 remains relative, in order to allow incident light reflect between the reflecting surface of these two speculums.
In the present embodiment, the axis that equals four street lamp pumping image intensifers to the distance at the center of M0, the center of M1 is to the distance of a street lamp pumping image intensifer center glass rod wherein.
In other embodiments, the axis that can also be not equal to four street lamp pumping image intensifers to the distance at the center of M0, the center of M1 is to the distance of a street lamp pumping image intensifer center glass rod wherein.Be that M1 is positioned on the circumference that each center glass rod of Multi-path lamp pumping image intensifer forms, and the circumference that M1 can form along each center glass rod of Multi-path lamp pumping image intensifer is around 0360 ° of revolution of the first mirror M; And M0 is positioned over the fixed position on the axis of Multi-path lamp pumping image intensifer, and can be around the 360 ° of rotations in its center, the distance L at the center of the circle that this fixed position forms on the axis and with each center glass rod of Multi-path lamp pumping image intensifer, L is not 0, can set according to actual needs; M0 can be positioned on the axis of Multi-path lamp pumping image intensifer, and be positioned at the place ahead of each street lamp pumping image intensifer apart from the center L of the circle of each center glass rod formation of Multi-path lamp pumping image intensifer.Then the method by corresponding rotation M0 and M1 also can make incident light enter successively each road laser amplifier.
The device and method mechanical structure that the embodiment of the invention improves lamp pumping image intensifer operating frequency is simple, and it is convenient and reliable to adjust light path, and can improve the far field directive property of laser, reduces the angle of laser far field and floats.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. device that improves lamp pumping image intensifer operating frequency comprises the lamp pumping image intensifer that Multichannel Parallel with same axis is placed, and it is characterized in that, also comprises:
Be arranged on the first speculum on the axis of described Multi-path lamp pumping image intensifer, and described the first speculum can 360 ° of rotations;
Be arranged on the second speculum on the circumference that each center glass rod of described Multi-path lamp pumping image intensifer forms, and described the second speculum can be along described circumference around 360 ° of revolution of the first speculum;
The interval scheduled time, the first speculum rotation predetermined angular, the second speculum rests on a wherein street lamp pumping image intensifer center glass rod behind the first speculum revolution predetermined angular, incident light is incident to this street lamp pumping image intensifer through first, second speculum successively
Wherein, the described scheduled time equals the operating time of each street lamp pumping image intensifer;
When described Multi-path lamp pumping image intensifer work, the reflecting surface of the first speculum remains relative with the reflecting surface of the second speculum;
Described device also comprises the first fixed mount on the axis that is arranged on Multi-path lamp pumping image intensifer, described the first speculum by described the first fixed mount around described the first speculum center rotation;
Described device also comprises rotatable the second fixed mount; Described the second speculum is arranged on the second fixed mount, and described the second speculum revolves round the sun around the first speculum along the circumference that each center glass rod of described Multi-path lamp pumping image intensifer forms;
Described predetermined angular is the angle between the middle axial plane of adjacent two lamp pumping image intensifers, and described middle axial plane is the center line of lamp pumping image intensifer and the plane that the axis forms.
2. device according to claim 1 is characterized in that, described lamp pumping image intensifer is four the tunnel; Described predetermined angular is 90 °.
3. device according to claim 2 is characterized in that, the described scheduled time is 5 minutes.
4. according to device according to claim 1, it is characterized in that the distance at the center of described the second speculum center and the first speculum equals the axis of Multi-path lamp pumping image intensifer and arrives the wherein distance of a street lamp pumping image intensifer center glass rod.
5. a method of utilizing device claimed in claim 1 to improve lamp pumping image intensifer operating frequency is characterized in that, may further comprise the steps:
The first speculum is fixed on the first fixed mount, the first speculum center is on the axis of Multi-path lamp pumping image intensifer; The second speculum is fixed on the second fixed mount, makes circumference that the second speculum can form along each center glass rod of Multi-path lamp pumping image intensifer around 360 ° of revolution of the first speculum;
Within the operating time of Multi-path lamp pumping image intensifer, every interval scheduled time, the first speculum rotation predetermined angular, the second speculum rests on a wherein street lamp pumping image intensifer center glass rod successively around the first speculum described predetermined angular that revolves round the sun; The described scheduled time equals the operating time of each street lamp pumping image intensifer;
When the second speculum rested on wherein a street lamp pumping image intensifer center glass rod, incident light was incident to this street lamp pumping image intensifer through first, second speculum successively, makes this street lamp pumping image intensifer work once;
When the second speculum was covered all lamp pumping image intensifer center glass rods, the operating time of Multi-path lamp pumping image intensifer finished, and Multi-path lamp pumping image intensifer is finished the one action process.
6. the method for raising lamp pumping image intensifer operating frequency according to claim 5 is characterized in that, described predetermined angular is the angle between the middle axial plane of adjacent two lamp pumping image intensifers.
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|---|---|---|---|
| CN 201110137671 CN102570263B (en) | 2011-09-28 | 2011-09-28 | Device and method for improving working frequencies of lamp pump laser amplifiers |
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|---|---|---|---|
| CN 201110137671 CN102570263B (en) | 2011-09-28 | 2011-09-28 | Device and method for improving working frequencies of lamp pump laser amplifiers |
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| CN102570263B true CN102570263B (en) | 2013-10-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU7964975A (en) * | 1974-04-08 | 1976-09-30 | Commonwealth Of Australia, The | Laser |
| CN2089663U (en) * | 1991-03-09 | 1991-11-27 | 福建师范大学 | Rotary reflect laser output device |
| US5375132A (en) * | 1993-05-05 | 1994-12-20 | Coherent, Inc. | Solid state laser with interleaved output |
| CN101256255B (en) * | 2008-03-21 | 2010-10-13 | 北京理工大学 | System for joining light path of multiplex laser |
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