CN206283096U - The simple hectowatt grade Bladder stone system of light path - Google Patents
The simple hectowatt grade Bladder stone system of light path Download PDFInfo
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- CN206283096U CN206283096U CN201621271056.1U CN201621271056U CN206283096U CN 206283096 U CN206283096 U CN 206283096U CN 201621271056 U CN201621271056 U CN 201621271056U CN 206283096 U CN206283096 U CN 206283096U
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Abstract
The utility model discloses a kind of simple hectowatt grade Bladder stone system of light path, including four same Bladder stone resonators and its plus lens and an optical-fiber bundling device, optical-fiber bundling device has 4 input optical fibres, draw cone section and output optical fibre, the incidence end of four incident opticals is individually positioned in four focal points of plus lens, the terminal surface for drawing cone section is cutting planes, the cutting planes carry out welding with the naked fibre of output optical fibre, the optical fiber glue that refractive index is 1.46 is coated with before and after this weld in the range of 2cm, output optical fibre is medical Bladder stone optical fiber, the core diameter of output optical fibre is 1.8~2.2 times of the core diameter of input optical fibre；The power output of each Bladder stone resonator is more than 35W, and the power output of the output optical fibre of optical-fiber bundling device is more than 100W.Component that the utility model needs is few, debugging is convenient, it is not necessary to rotating device and its control system, is capable of achieving the merging of four road laser, obtains high-power laser output.
Description
Technical field
The utility model is related to high power solid state laser field, and in particular to a kind of simple hectowatt grade Bladder stone of light path
System.
Background technology
Holmium laser is to use Cr, Tm, Ho: the pulse laser that YAG crystal makes, and 2.1 μm of its output wavelength is in water
Absworption peak, this laser is shallow to the penetration depth of tissue, there is surgical precision very high, and to eye-safe, adds
Its available fiber is transmitted, thus medically it be a kind of to do the light source of surgery well.Therefore, Bladder stone extensive use
In fields such as Urology Surgery, dept. of dermatology, gynemetrics, Gastroenterology dept., department of general surgery and ENT dept.s.
But the lasing threshold of Bladder stone crystal is high, its thermal conductivity is low, when being worked under the conditions of Gao Zhongying, the thermal lens of crystal
Effect is obvious, due to these features so that the power output of single laser crystal can not possibly be higher.In order to obtain high-output power
Titanium laser therapeutic equipment, people using multiple path laser light extraction in turn, by merging light path and being coupled into the side of same optical fiber
Method improves total power output.
Recognize from the paper, publicity patent and market product delivered at present, power meets or exceeds the holmium of hectowatt
Laser system swashs combiner and forms by 4 roads.The technical scheme that output is coupled after four road Bladder stones merging light paths can be divided into
Two classes：
1st, the first kind is based on geometric optics, to allow the transmission path of four road laser to meet certain geometry using total reflective mirror
In the case of relation, a completely reflecting mirror for Serve Motor Control is recycled, by 4 road laser reflections to same coupled lens
In, hence into same Transmission Fibers (for example, Authorization Notice No. CN202059047U, four core Bladder stones generation system), but
It is that the light path of the four core Bladder stone system is sufficiently complex, the laser of each laser output need to reflect through two speculums, then
Incide on the total reflective mirror of Serve Motor Control, the light path of four road laser could be allowed finally to overlap to together, then by converging
Lens, by four tunnel laser coupleds to same output optical fibre, it is also desirable to the work schedule of precise control each laser
With the rotation of servomotor, make the running status of each laser corresponding with the certain position state of total reflective mirror, the tunnels of ability Neng Shi tetra-
Laser chronologically enters condenser lens in turn, and is exported from optical fiber.
This four roads Bladder stone product, except the resonator per laser all the way needs Effect of Back-Cavity Mirror, an outgoing mirror
Outside, in addition it is also necessary to 8 total reflective mirrors, a rotatable total reflective mirror and servomotor and its control system, therefore there are three aspects
Technological deficiency：(1) many (2) the light paths complexity of component, the inconvenient debugging for needing.(3) precise control light path system is needed, can be turned
The rotating rule of dynamic total reflective mirror must be with the burst length accurately mate of laser.In the market is existing with this kind of technical scheme
Based on Bladder stone system be external import.
2nd, Equations of The Second Kind is that, using the beaming device of multi-path laser, the output of each laser is respectively coupled in optical fiber, this
The output end of a plurality of optical fiber of sample is connected on an input for beaming device simultaneously, and the laser exported after boundling is again with thoroughly
Mirror is focused on, and the laser allowed after converging enters common optical fiber, multi-path laser a from optical fiber output is realized, so as to wish to obtain big work(
Rate laser is exported.
For example, in " multichannel solid Bladder stone beaming device " (U of Authorization Notice No. CN 203277954), each group of holmium
To in an optical fiber, the other end of the optical fiber is accessed in a beam shaping homogenizer output coupling of laser, from the device
The light beam of outgoing by collimation lens, the second coupled lens, is coupled into output optical fibre again.Again for example " using bundling device
In multi-resonant chamber high frequency titanium laser therapeutic equipment " (U of Authorization Notice No. CN 202723982), the output difference per laser all the way
It is coupled in respective Transmission Fibers, this two optical fiber are fused to form a conjunction beam optical fiber by bundling device, from conjunction beam optical fiber
The laser of middle output is coupled in working optical fibre by coupling mirror again.
In this 2 technical schemes of patent application, either " output optical fibre of beaming device " or " it is fused what is formed
One is closed beam optical fiber ", they are all difficult to meet medical optical fiber specification, accordingly, it would be desirable to coupled lens are utilized again, by light beam coupling
In closing the working optical fibre for meeting medical specification.This kind of scheme both increased the coupling loss of light beam, needed for increased system again
Device.
Utility model patent " optical-fiber bundling device " (Granted publication：The U of CN 204790085), describe：The of input optical fibre
Two fibre cores 24 are more than the first fibre core 22 of output optical fibre, also, by three second fibre core fused biconical tapers of major diameter into minor diameter
The first fibre core, the cross section of the drawing cone section for being formed needs very big reduction, can so make transmitting beam in segment core
Pattern is changed into cladding mode, so as to bring the loss of transmitting beam.And, the output optical fibre of this technical scheme is to be unsatisfactory for medical holmium
Laser fiber requirement because medical Bladder stone optical fiber from geometric parameter (the first fibre core, the second fibre core, covering and protective layer),
Optical parametric and material have strict demand.
Patent of invention " a kind of pump optical fiber combiner and preparation method thereof " (publication No.：CN102508336A), disclose
A kind of pump optical fiber combiner, fibre bundle is slowly drawn the simple optical fiber for boring and being ultimately drawn into certain diameter, as output light
Fibre, but, its technical scheme equally exists 2 technological deficiencies that " optical-fiber bundling device " is present.
In addition, up to the present in the market does not use the High-power holmium laser with mini system based on boundling technology now also.From state
Be can be seen in the inquiry of the domestic medicine equipment database of food and medicine supervision and management general bureau of family, produce the state of holmium laser therapy instrument
Interior enterprise has 7, and the Bladder stone system that power meets or exceeds hectowatt can be produced but without an enterprise.
The content of the invention
In order to solve above-mentioned technical problem, the utility model provides a kind of simple hectowatt grade Bladder stone system of light path
System, it is necessary to component is few, debugging is convenient, it is not necessary to rotating device and its control system, be capable of achieving the merging of four road laser, obtain
Obtain high-power laser output.
The scheme that the utility model solves above-mentioned technical problem is as follows：
The simple hectowatt grade Bladder stone system of light path, including four same Bladder stone resonators and its plus lens and one
Individual optical-fiber bundling device,
The Bladder stone resonator includes Effect of Back-Cavity Mirror, laser pump cavity and the outgoing mirror sequentially coaxially placed, plus lens with it is rear
Hysteroscope, laser pump cavity and outgoing mirror also coaxial placement, Effect of Back-Cavity Mirror and outgoing mirror are level crossing, and Effect of Back-Cavity Mirror is that wavelength is 2.094 microns
Completely reflecting mirror, outgoing mirror is the partially reflecting mirror that wavelength is 2.094 microns, and laser pump cavity is ceramic chamber or quartz cavity, optically focused
It is mounted with laser crystal and xenon lamp in chamber, plus lens is that to be coated with wavelength be 2.094 microns of biconvex lens of anti-reflection film；
Optical-fiber bundling device has 4 input optical fibres, draws cone section and output optical fibre, and the incidence end of four incident opticals is placed respectively
In four focal points of plus lens, the terminal surface for drawing cone section is cutting planes, and the cutting planes enter with the naked fibre of output optical fibre
Row welding, is coated with the optical fiber glue that refractive index is 1.46 in the range of 2cm before and after this weld, output optical fibre is medical Bladder stone
Optical fiber, the core diameter of output optical fibre is 1.8~2.2 times of the core diameter of input optical fibre；
The power output of each Bladder stone resonator is more than 35W, the output power of the output optical fibre of optical-fiber bundling device
In 100W.
The length of the output optical fibre is not less than 3 meters.
The utility model has the following advantages relative to prior art：
1st, 4 Bladder stone resonators work independently, and light path is simple, adjust and easy to maintenance.
2nd, due in the conjunction beam of 4 road laser the tilting mirror of Serve Motor Control need not be used, required control signal is reduced,
The control circuit system of system is simplified, the merging for realizing four road laser with light path closely is exported, and is greatly reduced
Required element, reduces production cost.
3rd, the optical-fiber bundling device of particular design, its output optical fibre core diameter is close to 2 times of input optical fibre, four input optical fibre structures
Into fibre bundle external diameter be approximately equal to output optical fibre diameter, in fused biconical taper, the cross section of fibre bundle has almost no change, because
This, close beam process influences very little to the transmission mode of input optical fibre, so that boundling loss is farthest reduced, per holmium all the way
When laser output power is more than 35W, bundling device output end power output more than 100W.
4th, the optical-fiber bundling device of particular design, after four roads is swashed combiner, is directly exported by medical optical fiber, meets Medical treatment device
The requirement of material.
Brief description of the drawings
Fig. 1 is the structural representation of the simple hectowatt grade Bladder stone system of light path of the present utility model.
Fig. 2 is the mould sketch for forming fibre bundle.
Fig. 3 is the stereogram of optical-fiber bundling device.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
The simple hectowatt grade Bladder stone system of light path as shown in Figure 1, Figure 2 and Figure 3, including four same Bladder stones are humorous
Shake chamber 5 and its plus lens 4 and an optical-fiber bundling device 6,
Bladder stone resonator 5 includes Effect of Back-Cavity Mirror 1, laser pump cavity 2 and the outgoing mirror 3 sequentially coaxially placed, plus lens 4 with it is rear
Hysteroscope 1, laser pump cavity 2 and outgoing mirror 3 also coaxial placement, Effect of Back-Cavity Mirror 1 and outgoing mirror 3 are level crossing, and Effect of Back-Cavity Mirror 1 is that wavelength is
2.094 microns of completely reflecting mirror, outgoing mirror 3 is the partially reflecting mirror that wavelength is 2.094 microns, laser pump cavity 2 be ceramic chamber or
Quartz cavity, is mounted with laser crystal and xenon lamp in laser pump cavity 2, plus lens 4 is that to be coated with wavelength be the double of 2.094 microns of anti-reflection films
Convex lens；
Optical-fiber bundling device 6 has 4 input optical fibres 7, draws cone section and output optical fibre 8, four incidence end difference of incident optical 7
Four focal points of plus lens 4 are placed on, the terminal surface for drawing cone section is cutting planes, the cutting planes and output optical fibre 8
Naked fibre carries out welding, is coated with the optical fiber glue 12 that refractive index is 1.46 before and after this weld in the range of 2cm, and output optical fibre 8 is
Medical Bladder stone optical fiber, the core diameter of output optical fibre 8 is 2 times of the core diameter of input optical fibre 7；
Power output in each Bladder stone resonator 5 is more than 35W, the output work of the output optical fibre 8 of optical-fiber bundling device 6
Rate is more than 100W.
The length of output optical fibre 8 is not less than 3 meters.
The preparation method of optical-fiber bundling device is as follows：
1st, load mould after the output end of 4 input optical fibres 7 being peelled off into coat, constitute fibre bundle；
2nd, by step 1) obtained by fibre bundle under conditions of furnace heats slow appropriate drawing bore and be ultimately drawn into one
Bar simple optical fiber；
3rd, to step 2) obtained by be drawn after simple optical fiber one end cut after it is naked with output optical fibre 8
Fibre carries out welding, and the core diameter of output optical fibre 8 is 2 times of the core diameter of input optical fibre 7；
4th, to step 3) obtained by be coated with the glue that refractive index is 1.46 in the range of 2cm before and after fusion point.
The method of work of hectowatt grade Bladder stone system is：
(1) Effect of Back-Cavity Mirror, laser pump cavity and outgoing mirror have been sequentially placed per Bladder stone resonator all the way, laser pump cavity section is ellipse
Circle a, laser crystal is located in the two oval focuses in laser pump cavity respectively with xenon lamp.Xenon lamp to laser pump cavity adds one
After fixed electric signal, the pump light that xenon lamp sends is directly or by after the reflection of optically focused cavity wall, inciding on laser crystal；
(2) laser is sent after laser crystal absorptive pumping light, the preceding surface of Effect of Back-Cavity Mirror and the rear surface of outgoing mirror are plated respectively
2.094 microns of be all-trans film and part reflectance coating, in the Bladder stone resonator be made up of Effect of Back-Cavity Mirror, laser pump cavity and outgoing mirror,
Be to wavelength 2.094 microns, make prepreerence amplification in the laser of optical axis direction transmission, and other frequencies and the light in direction
Suppressed, from the laser that outgoing mirror output wavelength is 2.094 microns；
After the laser of (3) 4 Bladder stone resonator outputs is focused on respectively through corresponding plus lens, at lens focus
Into the input optical fibre of optical-fiber bundling device, then four road laser are from the output optical fibre output of optical-fiber bundling device.
Above-mentioned is the utility model preferably implementation method, but implementation method of the present utility model is not by the above
Limitation, it is other it is any without departing from Spirit Essence of the present utility model and the change, modification, replacement made under principle, combine, it is simple
Change, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (2)
1. the simple hectowatt grade Bladder stone system of light path, it is characterised in that：Including four same Bladder stone resonators and its remittance
Poly- lens and an optical-fiber bundling device,
The Bladder stone resonator includes Effect of Back-Cavity Mirror, laser pump cavity and the outgoing mirror sequentially coaxially placed, plus lens and Effect of Back-Cavity Mirror,
Laser pump cavity and outgoing mirror also coaxial placement, Effect of Back-Cavity Mirror and outgoing mirror be level crossing, and Effect of Back-Cavity Mirror is that wavelength is 2.094 microns and is all-trans
Mirror is penetrated, outgoing mirror is the partially reflecting mirror that wavelength is 2.094 microns, and laser pump cavity is ceramic chamber or quartz cavity, pacified in laser pump cavity
Laser crystal and xenon lamp are filled, plus lens is that to be coated with wavelength be 2.094 microns of biconvex lens of anti-reflection film；
Optical-fiber bundling device has 4 input optical fibres, draws cone section and output optical fibre, and the incidence end of four incident opticals is individually positioned in four
The focal point of individual plus lens, the terminal surface for drawing cone section is cutting planes, and the cutting planes are melted with the naked fibre of output optical fibre
Connect, be coated with the optical fiber glue that refractive index is 1.46 before and after this weld in the range of 2cm, output optical fibre is medical Bladder stone light
Fibre, the core diameter of output optical fibre is 1.8~2.2 times of the core diameter of input optical fibre；
The power output of each Bladder stone resonator is more than 35W, and the power output of the output optical fibre of optical-fiber bundling device is more than
100W。
2. the simple hectowatt grade Bladder stone system of light path according to claim 1, it is characterised in that：The output optical fibre
Length is not less than 3 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621271056.1U CN206283096U (en) | 2016-11-25 | 2016-11-25 | The simple hectowatt grade Bladder stone system of light path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621271056.1U CN206283096U (en) | 2016-11-25 | 2016-11-25 | The simple hectowatt grade Bladder stone system of light path |
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| CN206283096U true CN206283096U (en) | 2017-06-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693116A (en) * | 2017-11-24 | 2018-02-16 | 合肥大族科瑞达激光设备有限公司 | A kind of four cavity holmium laser therapy apparatus |
| CN108721789A (en) * | 2018-05-31 | 2018-11-02 | 合肥大族科瑞达激光设备有限公司 | A kind of co-operating therapeutic equipment of multi-wavelength Bladder stone |
| CN108832469A (en) * | 2018-06-04 | 2018-11-16 | 北京凯普林光电科技股份有限公司 | A kind of high power fiber laser of spectrum beam combination |
| CN115425507A (en) * | 2022-09-30 | 2022-12-02 | 西安工业大学 | Distributed gain high-power all-fiber laser resonant cavity |
-
2016
- 2016-11-25 CN CN201621271056.1U patent/CN206283096U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693116A (en) * | 2017-11-24 | 2018-02-16 | 合肥大族科瑞达激光设备有限公司 | A kind of four cavity holmium laser therapy apparatus |
| CN108721789A (en) * | 2018-05-31 | 2018-11-02 | 合肥大族科瑞达激光设备有限公司 | A kind of co-operating therapeutic equipment of multi-wavelength Bladder stone |
| CN108832469A (en) * | 2018-06-04 | 2018-11-16 | 北京凯普林光电科技股份有限公司 | A kind of high power fiber laser of spectrum beam combination |
| CN108832469B (en) * | 2018-06-04 | 2019-11-29 | 北京凯普林光电科技股份有限公司 | A kind of high power fiber laser of spectrum beam combination |
| CN115425507A (en) * | 2022-09-30 | 2022-12-02 | 西安工业大学 | Distributed gain high-power all-fiber laser resonant cavity |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 510700 room 603, building C2, Chuangxin building, No. 182, Kexue Avenue, Huangpu District, Guangzhou, Guangdong Province Patentee after: GUANGZHOU POTENT MEDICAL EQUIPMENT JOINT-STOCK Inc. Address before: 510520 unit a, 5th floor, building C2, No. 11, Kaiyuan Avenue, Science City, Guangzhou high tech Industrial Development Zone, Guangdong Province Patentee before: GUANGZHOU POTENT MEDICAL EQUIPMENT JOINT-STOCK Inc. |
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| CP02 | Change in the address of a patent holder |