CN104617475A - Adjustment method of double path holmium laser - Google Patents
Adjustment method of double path holmium laser Download PDFInfo
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- CN104617475A CN104617475A CN201510058543.3A CN201510058543A CN104617475A CN 104617475 A CN104617475 A CN 104617475A CN 201510058543 A CN201510058543 A CN 201510058543A CN 104617475 A CN104617475 A CN 104617475A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910052689 Holmium Inorganic materials 0.000 title claims abstract description 21
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 abstract description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 230000001225 therapeutic effect Effects 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 208000006568 Urinary Bladder Calculi Diseases 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002682 general surgery Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an adjustment method of a double path holmium laser. The adjustment method of the double path holmium laser solves the problems that only a collimated light beam is used to adjust a first resonant cavity, and then two isosceles rectangular prisms are used to deflect the collimated light beam by 90 degrees, and therefore the collimated light beam is horizontally moved relatively to an original transmission direction. According to the adjustment method of the double path holmium laser, two 45 degree total reflective mirrors are used to sequentially replace the two isosceles rectangular prisms, and therefore the effect that the two total reflective mirrors are efficiently and accurately positioned is guaranteed. The collimated light beam after being reflected by the two total reflective mirrors is parallel to the original transmission direction, and then the optical axis of a second resonant cavity, adjusted by using the collimated light beam, is naturally parallel to the optical axis of the first resonant cavity, and furthermore laser light generated by the second resonant cavity sequentially passes through light paths formed after the two total reflective mirrors are deflected, and then overlaps with an extension line of the optical axis of the first resonant cavity, and therefore the adjustment method of the double path holmium laser guarantees that two paths of the laser light can be coupled into the same transmission optical fiber at the minimum loss when the two paths of the laser light work. The adjustment method of the double path holmium laser can achieve the purpose of efficiently and reliably adjusting a double path laser system, reduces demands for operation personnel, improves production efficiency, and reduces production cost.
Description
Technical field
The present invention relates to the technical field of double-channel holmium laser, refer in particular to a kind of control method of double-channel holmium laser.
Background technology
Holmium laser is with Cr, Tm, the pulse laser that Ho: YAG crystal makes, its output wavelength 2.1 μm is in the absworption peak of water, and therefore, the penetration depth of this laser to tissue is shallow, there is very high surgical precision, and to eye-safe, more go up the transmission of its available fiber, so medically it is a kind of light source well doing surgery.Therefore, Bladder stone has been widely used in the fields such as Urology Surgery, dept. of dermatology, gynemetrics, Gastroenterology dept., department of general surgery and ENT dept..
The lasing threshold of holmium laser is high, and the thermal conductivity of Bladder stone crystal is low simultaneously, and therefore the electro-optical efficiency of holmium laser is low, power output is low.In order to obtain the titanium laser therapeutic equipment of high-output power, often adopt two-way, or more the laser bright dipping in turn on road, through merging light path and the method being coupled into same optical fiber to improve total power output.
For two-way Laser output, two laserresonators are placed in parallel to each other, 45 ° of plane total reflective mirrors of one are placed at certain position place in the Laser output light path of second resonant cavity, make the transmission direction of the second road laser deflect 90 ° towards first via direction.Put 45 ° of plane total reflective mirrors in the position that the second road laser and first via laser meet again, after making the direction of the second road laser deflect 90 ° again, overlap completely with the transmission light path of first via laser.Be arranged on a rotating disk by second 45 ° of total reflective mirror, on rotating disk, one end of a specific diameter is total reflective mirror, and the other end is a light hole.Two-way laser wheel flows out light, and when first via Laser output, the light hole of rotating disk is positioned on laser emission path, allows first via laser by afterwards, is coupled to Transmission Fibers.When the second road Laser output, the total reflective mirror of rotating disk is positioned on laser emission path, allows after the second road laser reflection, also can be coupled in same Transmission Fibers.Therefore, two lasers take turns to operate under setting sequential, and order is coupled into same optical fiber, thus reaches the object improving total laser output power.In order to improve the power output of titanium laser therapeutic equipment further, at present external existing three, four road laser cure apparatuses drop into application, are domesticly also carrying out correlative study.
In above-mentioned laser system, each resonant cavity contains former and later two chamber mirrors, and they are arranged on the support of adjustable pitching respectively.Usually long according to resonator designing requirement, support bracket fastened position, by means of collimated light beam (usually using He-Ne laser), Effect of Back-Cavity Mirror before installing.A collimated light beam is placed in one side of the first resonant cavity its front cavity mirror outer, close, utilizes first collimated light beam to regulate the front Effect of Back-Cavity Mirror of the first resonant cavity; Second collimated light beam is placed on outside the chamber of the second resonant cavity, near one side of its Effect of Back-Cavity Mirror, utilizes second collimated light beam, regulate the front Effect of Back-Cavity Mirror of the second resonant cavity.The result of such adjustment, two resonator optical axis parallel be do not have guaranteed; When two 45 ° of plane total reflective mirrors are installed, allow second collimated light beam after these two total reflective mirror reflections, incide the outgoing diaphragm center of first collimated light beam; When this two total reflective mirrors are installed, the rough location of two total reflective mirrors is determined by its support and rotating disk, the accuracy of its position is determined by Machine Design and level of processing, but in any case the level of optical requirement can not be reached, need the pitching of fine tuning 45 ° of plane total reflective mirrors, but under normal circumstances, second collimated light beam can not incide the center of first diaphragm after their reflections, needs the pitching of adjustment two total reflective mirrors; For a total reflective mirror on the second resonator optical axis extended line, the regulating effect of its pitching, will after the total reflective mirror reflection on the first resonator optical axis extended line, the relative position of hot spot on the diaphragm of first collimated light beam of the second collimated light beam reflects, this is all relevant with the pitching of two total reflective mirrors, can not determine adjusted total reflective mirror angle whether at 45 ° with the optical axis of the second resonant cavity according to facula position; During total reflective mirror before adjustment first resonant cavity, can only with eye-observation, whether the pip on total reflective mirror is on the optical axis of the first resonant cavity, therefore, when regulating this total reflective mirror, whether reached the center of the diaphragm of first collimated light beam by the hot spot observing the second collimated light beam, when determining the pitching of this total reflective mirror, can not determine whether this light beam overlaps completely with the light path of the first collimated light beam; There is angle in these two light paths, will directly cause the loss of coupling output.In adjustment process, the normal that cannot judge the total reflective mirror on rotating disk just and primary optic axis direction angle at 45 °, equally also cannot judge that whether the normal direction of these two total reflective mirrors is parallel.The adjustment of these two total reflective mirrors does not at present have ancillary method, mainly relies on operating experience, repeatedly regulates two 45 ° of total reflective mirrors.In addition, the adjustment of two resonant cavitys is relatively independent, is difficult to guarantee two resonator optical axis and is parallel to each other, and this adds difficulty to again the adjustment of 45 ° of total reflective mirrors.Due to the imbalance of 45 ° of total reflective mirrors, the loss of the power output of laser system will be brought, and even this work is operated by skilled worker in production reality, it is consuming time also has certain uncertainty.Therefore, the adjustment of double light path Bladder stone system is a working link being starved of improvement in the production of titanium laser therapeutic equipment.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of control method of effective double-channel holmium laser is provided, reduce the requirement to operating personnel, the optical axis that can realize reaching efficiently, with high reliability two resonant cavitys is parallel to each other, two-way laser is merged on an optical axis extended line, and be coupled into the object of same Transmission Fibers, thus improve two-way, or more production cycle of road titanium laser therapeutic equipment, reduce production cost.
For achieving the above object, technical scheme provided by the present invention is: a kind of control method of double-channel holmium laser, comprises the following steps:
1) regulate horizontal level and the pitching of secondary light source, allow the output beam of secondary light source by the front cavity mirror carriage center of the first resonant cavity; Before secondary light source output, place a diaphragm, regulate stop position, allow collimated light beam pass through from the center of diaphragm; Regulate the horizontal level of the Effect of Back-Cavity Mirror support of the first resonant cavity, allow collimated light beam by the center of this Effect of Back-Cavity Mirror support; Effect of Back-Cavity Mirror loaded onto by the Effect of Back-Cavity Mirror support of the first resonant cavity, by regulating the pitching of Effect of Back-Cavity Mirror, allow incident collimated light beam after its reflection, get back to diaphragm center, front cavity mirror loaded onto by the front cavity mirror support of the first resonant cavity, by regulating the pitching of front cavity mirror, allow incident collimated light beam after its reflection, get back to diaphragm center, the normal and the collimated light beam that therefore achieve front/back cavity mirror are coaxial, namely determine the optical axis of the first resonant cavity;
2) between the first resonant cavity front cavity mirror and diaphragm, an isosceles right-angle prism is placed, allow collimated light beam from a right-angle side incidence, another right-angle side is in the direction near second resonant cavity, by regulating this prism pitching, allow collimated light beam when the reverberation of prism first plane of incidence gets back to diaphragm center, collimated light beam enters prism, and the output light after its hypotenuse total reflection and collimated light beam are from the direction angle in 90 ° during diaphragm outgoing; The output light path of above-mentioned prism places another isosceles right-angle prism again, regulates the horizontal level of this second prism, make its output beam by the center of second resonant cavity front cavity mirror support; When the pitching of adjustment second prism, make collimated light beam at the reverberation of its first plane of incidence, get back to diaphragm center through first prism, make the transmission direction of collimated light beam again turn 90 °, and the output beam of second prism is parallel to the optical axis of the first resonant cavity; An aperture installed by the support of the second resonant cavity Effect of Back-Cavity Mirror, regulates the horizontal level of Effect of Back-Cavity Mirror support, after making the center of the output beam of second prism by the second resonant cavity front cavity mirror support, arrive aperture center;
3) replace above-mentioned second prism with 45 ° of plane total reflective mirror, regulate its pitching, make its reverberation still incide the center of aperture; Remove first prism again, install rotating disk, and allow 45 ° of plane total reflective mirrors on rotating disk be positioned on the optical axis extended line of the first resonant cavity, regulate this total reflective mirror pitching, allow collimated light beam through its reflection, again after another total reflective mirror, still incide the center of aperture; By instead of step 2 with 45 ° of plane total reflective mirrors successively) in two isosceles right-angle prisms after, ensure that total reflective mirror normal on now rotating disk and collimated light beam are 45 ° from angle during diaphragm outgoing, the normal of two total reflective mirrors is parallel to each other;
4) take out aperture, install the Effect of Back-Cavity Mirror of second resonant cavity, see the flare of Effect of Back-Cavity Mirror from the output diaphragm of collimated light beam, regulate the pitching of this Effect of Back-Cavity Mirror, allow its flare be positioned at output diaphragm center; Install the front cavity mirror of second resonant cavity again, regulate its pitching, the hot spot that this front cavity mirror reflects is allowed to be positioned at output diaphragm center, like this, normal and the collimated light beam of the front/back cavity mirror of the second resonant cavity are coaxial, and the optical axis of the second resonant cavity is parallel from direction during diaphragm outgoing with collimated light beam, also parallel with the optical axis of the first resonant cavity, the laser that second resonant cavity produces, through twice total reflective mirror, after its transmission direction deflects 90 ° successively, overlaps with the optical axis extended line of the first resonant cavity.
Through above-mentioned adjustment, ensure that second resonant cavity produce laser through twice 90 ° turn to after, the laser optical path produced with the first resonant cavity overlaps, two-way laser can arrive diaphragm center, if place a plus lens on the path that two-way laser optical path overlaps, the input of Transmission Fibers is installed at its focus place, and the first resonant cavity and the second resonant cavity take turns to operate under setting sequential, and the output of two-way laser just can sequentially be coupled into same Transmission Fibers.
Described first resonant cavity and the second resonant cavity take turns to operate under setting sequential, and rotating disk enters plus lens after allowing two-way laser pass through successively, and the output of such two-way laser just can sequentially be coupled into same Transmission Fibers.
Described secondary light source is Ne-Ne laser.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
1, the inventive method only uses a collimated light beam, after utilizing it to regulate first resonant cavity, recycling two isosceles right-angle prisms makes collimated light beam deflect 90 ° successively, itself and former transmission direction is made to there occurs translation, the optical axis of the second resonant cavity utilizing the collimated light beam after translation to regulate, nature is parallel with the optical axis of the first resonant cavity, two isosceles right-angle prisms are substituted successively afterwards with two 45 ° of total reflective mirrors, the normal that ensure that two total reflective mirrors is 45 ° with the optical axis included angle of two resonant cavitys respectively, the normal of two total reflective mirrors is parallel to each other, the laser that such second resonant cavity produces is successively after two total reflective mirrors deflect 90 °, its light path is inevitable to be overlapped with the optical axis extended line of the first resonant cavity, and then when ensure that two-way laser takes turns to operate, (single resonant cavity exports the titanium laser therapeutic equipment for 40W to be coupled into same Transmission Fibers with minimal losses order, peak power output can reach 80W), avoid in traditional regulation method because cannot guaranteeing that two-way laser overlaps completely (usually there is angle) and causing the loss of coupling output.
2, in the methods of the invention, during owing to installing two 45 ° of total reflective mirrors, substitute two isosceles right-angle prisms successively with two 45 ° of total reflective mirrors, ensure that these two 45 ° of total reflective mirrors of efficient, accurate location, make the adjustment of each 45 ° of total reflective mirror independently, can observe directly, be no longer dependent on the adjustment experience of operating personnel, greatly reduce the subjectivity of operating personnel, break away from the dependence to experience, thus increased work efficiency and degree of regulation.
Accompanying drawing explanation
Fig. 1 is one of light path schematic diagram of control method of the present invention.
Fig. 2 is the light path schematic diagram two of control method of the present invention.
Fig. 3 is the light path schematic diagram three of control method of the present invention.
Fig. 4 is the light path schematic diagram four of control method of the present invention.
Fig. 5 is the output coupling optical path schematic diagram of double-channel holmium laser.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The control method of the double-channel holmium laser described in the present embodiment, its concrete condition is as follows:
As shown in Figure 1, the light beam that secondary light source 1 (usually using Ne-Ne laser) is launched incides the front cavity mirror support 3 of the first resonant cavity 2, regulate horizontal level and the pitching of secondary light source 1, allow light beam by the center of front cavity mirror support 3, then before the output of secondary light source 1, diaphragm 4 is placed, regulate the position of diaphragm 4, allow collimated light beam pass through from the center of diaphragm 4.Regulate the horizontal level of the Effect of Back-Cavity Mirror support 5 of the first resonant cavity 2, allow collimated light beam by the center of Effect of Back-Cavity Mirror support 5.Effect of Back-Cavity Mirror support 5 is loaded onto Effect of Back-Cavity Mirror 6, by regulating the pitching of Effect of Back-Cavity Mirror 6, allowing incident collimated light beam after its reflection, getting back to the center of diaphragm 4.Front cavity mirror support 3 is installed front cavity mirror 7, regulates its pitching, make its reverberation get back to the center of diaphragm 4.Achieve the front cavity mirror 7 of the first resonant cavity 2 and the normal of Effect of Back-Cavity Mirror 6 and the coaxial of collimated light beam like this, namely determine the optical axis of the first resonant cavity, and with collimated light beam dead in line.
As shown in Figure 2, an isosceles right-angle prism 8 is placed in appropriate location between front cavity mirror 7 and diaphragm 4, and (distance apart from front cavity mirror support 3 is L, concrete numerical value, can require to determine according to the global design of laser system), the orientation of prism 8 is as shown in the figure.By regulating the pitching of prism 8, allow collimated light beam when the reverberation of first plane of incidence of prism 8 gets back to the center of diaphragm 4, collimated light beam enters prism 8, and the output light after its hypotenuse total reflection and collimated light beam are from the direction angle in 90 ° during diaphragm outgoing.The axis of the outgoing beam of above-mentioned prism 8 is placed another isosceles right-angle prism 9, regulate the horizontal level of this prism 9, the output beam of prism 9 is allowed to incide the center of the front cavity mirror support 11 of the second resonant cavity 10, regulate the pitching of prism 9, the light beam that its first plane of incidence is reflected gets back to the center of diaphragm 4 by prism 8, collimated light beam is after prism 9, and its transmission direction has turned again 90 °, and now the axis of prism 9 output beam is parallel with the optical axis of the first resonant cavity 2.An aperture 13 installed by the Effect of Back-Cavity Mirror support 12 of the second resonant cavity 10, carefully regulates the horizontal level of this Effect of Back-Cavity Mirror support 12, make the output beam of prism 9 incide aperture center.In this case, the collimated light beam incided in second resonant cavity 10 is parallel from direction during diaphragm outgoing with it, and parallel with the optical axis direction of first resonant cavity 2.
As shown in Figure 3, substitute above-mentioned prism 9 with 45 ° of plane total reflective mirrors 14, regulate its position and pitching, make its reverberation still incide the center of aperture.Take out above-mentioned prism 8 again, install rotating disk 15, and allow 45 ° of plane total reflective mirrors 16 on rotating disk 15 be positioned on the optical axis extended line of the first resonant cavity 2, regulate the pitching of rotating disk 15, allow collimated light beam after total reflective mirror 16, again after total reflective mirror 14, still can incide the center of aperture 13.After instead of above-mentioned two isosceles right-angle prisms 8,9 with 45 ° of plane total reflective mirrors successively, ensure that the angle of total reflective mirror normal on now rotating disk 15 and collimated light beam is 45 °, the normal of two total reflective mirrors 14,16 is parallel to each other.In this case, the collimated light beam incided in the second resonant cavity 10 keeps parallel with from transmission direction during diaphragm outgoing, and parallel with the optical axis of the first resonant cavity 2.
As shown in Figure 4, aperture 13 is replaced by the Effect of Back-Cavity Mirror 17 of second resonant cavity 10, collimated light beam after Effect of Back-Cavity Mirror 17 reflects, get back in the plane of diaphragm 4 after above-mentioned total reflective mirror 14 and total reflective mirror 16 successively, regulate the pitching of Effect of Back-Cavity Mirror 17, allow the light beam reflected be positioned at the center of output diaphragm 4.Front cavity mirror 18 installed by the front cavity mirror support 11 of the second resonant cavity 10, regulates the pitching of front cavity mirror 18, make the collimated light beam after front cavity mirror 18 reflects, after total reflective mirror 14 and total reflective mirror 16, get back to the center of diaphragm 4 successively.
Through above-mentioned adjustment, ensure that the first resonant cavity 2 is parallel with the optical axis of the second resonant cavity 10, and the laser that the second resonant cavity 10 produces, after twice 90 ° of deflections, can overlap with the first resonator optical axis extended line.If place plus lens 19 on the path that two light paths overlap, now diaphragm 4 is removed, and the input of Transmission Fibers 20 is placed at the focus place of plus lens 19, by the control of associated circuitry, the first resonant cavity 2 and the second resonant cavity 10 is allowed to take turns to operate, enter plus lens 19 after rotating disk 15 allows two-way laser pass through successively simultaneously, such two-way laser just can sequentially be coupled into same Transmission Fibers, as shown in Figure 5.Adopt such light path, single resonant cavity exports the titanium laser therapeutic equipment for 40W, and peak power output can reach 80W.
The control method of above-mentioned double-channel holmium laser, can also be used for the adjustment of three tunnels, four tunnel laser systems, the optical axis on each road is parallel to each other, and the light beam on each road can be coupled to the entry port of same Transmission Fibers well.Therefore, the inventive method has good using value in multichannel titanium laser therapeutic equipment, can improve two-way, or more production cycle of road titanium laser therapeutic equipment, reduce production cost.
The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (4)
1. a control method for double-channel holmium laser, is characterized in that, comprises the following steps:
1) regulate horizontal level and the pitching of secondary light source, allow the output beam of secondary light source by the front cavity mirror carriage center of the first resonant cavity; Before secondary light source output, place a diaphragm, regulate stop position, allow collimated light beam pass through from the center of diaphragm; Regulate the horizontal level of the Effect of Back-Cavity Mirror support of the first resonant cavity, allow collimated light beam by the center of this Effect of Back-Cavity Mirror support; Effect of Back-Cavity Mirror loaded onto by the Effect of Back-Cavity Mirror support of the first resonant cavity, by regulating the pitching of Effect of Back-Cavity Mirror, allow incident collimated light beam after its reflection, get back to diaphragm center, front cavity mirror loaded onto by the front cavity mirror support of the first resonant cavity, by regulating the pitching of front cavity mirror, allow incident collimated light beam after its reflection, get back to diaphragm center, the normal and the collimated light beam that achieve front/back cavity mirror are coaxial, namely determine the optical axis of the first resonant cavity;
2) between the first resonant cavity front cavity mirror and diaphragm, an isosceles right-angle prism is placed, allow collimated light beam from a right-angle side incidence, another right-angle side is in the direction near second resonant cavity, by regulating this prism pitching, allow collimated light beam when the reverberation of prism first plane of incidence gets back to diaphragm center, collimated light beam enters prism, and the output light after its hypotenuse total reflection and collimated light beam are from the direction angle in 90 ° during diaphragm outgoing; The output light path of above-mentioned prism places another isosceles right-angle prism again, regulates the horizontal level of this second prism, make its output beam by the center of second resonant cavity front cavity mirror support; When the pitching of adjustment second prism, make collimated light beam at the reverberation of its first plane of incidence, get back to diaphragm center through first prism, make the transmission direction of collimated light beam again turn 90 °, and the output beam of second prism is parallel to the optical axis of the first resonant cavity; An aperture installed by the support of the second resonant cavity Effect of Back-Cavity Mirror, regulates the horizontal level of Effect of Back-Cavity Mirror support, after making the center of the output beam of second prism by the second resonant cavity front cavity mirror support, arrive aperture center;
3) replace above-mentioned second prism with 45 ° of plane total reflective mirror, regulate its pitching, make its reverberation still incide the center of aperture; Remove first prism again, install rotating disk, and allow 45 ° of plane total reflective mirrors on rotating disk be positioned on the optical axis extended line of the first resonant cavity, regulate this total reflective mirror pitching, allow collimated light beam through its reflection, again after another total reflective mirror, still incide the center of aperture; By instead of step 2 with 45 ° of plane total reflective mirrors successively) in two isosceles right-angle prisms after, ensure that total reflective mirror normal on now rotating disk and be 45 ° from the angle of collimated light beam during diaphragm outgoing, the normal of two total reflective mirrors is parallel to each other;
4) take out aperture, install the Effect of Back-Cavity Mirror of second resonant cavity, see the flare of Effect of Back-Cavity Mirror from the output diaphragm of collimated light beam, regulate the pitching of this Effect of Back-Cavity Mirror, allow its flare be positioned at output diaphragm center; Install the front cavity mirror of second resonant cavity again, regulate its pitching, allow the hot spot that this front cavity mirror reflects be positioned at output diaphragm center.
2. the control method of a kind of double-channel holmium laser according to claim 1, it is characterized in that: the light path overlapped with the optical axis extended line of the first resonant cavity after the laser of described second resonant cavity generation deflects two 90 ° successively places plus lens, the input of Transmission Fibers is installed at its focus place, first resonant cavity and the second resonant cavity take turns to operate under setting sequential, and the output of two-way laser just can sequentially be coupled into same Transmission Fibers.
3. the control method of a kind of double-channel holmium laser according to claim 2, it is characterized in that: described first resonant cavity and the second resonant cavity take turns to operate under setting sequential, rotating disk enters plus lens after allowing two-way laser pass through successively, and the output of such two-way laser just can sequentially be coupled into same Transmission Fibers.
4. the control method of a kind of double-channel holmium laser according to claim 1, is characterized in that: described secondary light source is Ne-Ne laser.
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| CN113451871A (en) * | 2021-06-28 | 2021-09-28 | 长春理工大学 | Quick start intermediate infrared laser |
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