CN109149335A - Wavelength coating end cap group for inhibiting stimulated Raman scattering and application thereof - Google Patents
Wavelength coating end cap group for inhibiting stimulated Raman scattering and application thereof Download PDFInfo
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- CN109149335A CN109149335A CN201811234404.1A CN201811234404A CN109149335A CN 109149335 A CN109149335 A CN 109149335A CN 201811234404 A CN201811234404 A CN 201811234404A CN 109149335 A CN109149335 A CN 109149335A
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- end cap
- optical fiber
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- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 49
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 19
- 239000011248 coating agent Substances 0.000 title abstract description 7
- 238000000576 coating method Methods 0.000 title abstract description 7
- 239000013307 optical fiber Substances 0.000 claims abstract description 56
- 239000000835 fiber Substances 0.000 claims abstract description 45
- 239000010453 quartz Substances 0.000 claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000002269 spontaneous effect Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 238000002310 reflectometry Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000001579 optical reflectometry Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 12
- 241000931526 Acer campestre Species 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
Abstract
A wavelength coating end cap group for inhibiting stimulated Raman scattering comprises a first end cap and a second end cap, wherein the two end caps respectively comprise an optical fiber and a quartz block; the quartz block is formed by sequentially connecting a circular table, a cylinder and an output curved surface body with the same size of connecting end surfaces; one end face of the optical fiber is welded with the smaller end face of the circular table to form an interface; the extension line of the center line of the fiber core of the optical fiber is the center line of the circular truncated cone, the cylinder and the output curved surface body; the curved surface of the output curved surface body takes the intersection point of the central extension line of the fiber core of the optical fiber and the interface as the spherical center, the sum of the lengths of the central line of the quartz block in the circular truncated cone, the cylinder and the output curved surface body is taken as the curvature radius, the curved surface of the output curved surface body is provided with a coating, and the coating on the curved surface of the first end cap highly reflects the wave bands of 900-1000 nanometers and 1060-1100 nanometers; the coating film on the curved surface of the second end cap has low reflection to the 1060-1100 nm wave band and full transmission to other wave bands.
Description
Technical field
The present invention relates generally to optical-fiber laser field, and in particular to a kind of wavelength plated film end for inhibiting stimulated Raman scattering
Cap group and its application.
Background technique
High-capacity optical fiber laser has a wide range of applications in fields such as laser cutting, laser melting coating, 3D printings.In recent years
Come, with the power ascension of doubly clad optical fiber manufacture craft and high brightness semiconductor laser, single channel high power optical fibre laser is defeated
Power has obtained development at full speed out, is increased to current 10 kilowatts from 100 watts at the beginning of 21 century.With optical-fiber laser output work
The continuous improvement of rate, stimulated Raman scattering become one of the key constraints of limitation high-capacity optical fiber laser output power.
Tradition inhibits the mode of SRS to have and shortens gain fibre length, increases mode field area etc..Then as the promotion of output power, pass
System inhibits the mode of stimulated Raman scattering to have some limitations.
Traditional end caps are mainly used for independent output or the independent input of optical-fiber laser.Currently, in optical fiber laser
Field using it is more be the end caps with light beam output function, by by the quartz wedge welding of energy-transmission optic fibre and taper,
Have the function that beam expander and protection output end face；This kind of end caps need to plate anti-reflection film in end face, strictly to prevent
The damage of laser caused by Laser feedback, therefore only there is laser output function.In fiber coupled laser diode field,
In order to realize pluggable optical fiber pigtail, using it is more be the end caps with laser coupled function, by space input
Laser is coupled in energy-transmission optic fibre fibre core by conical fiber end cap；This kind of end caps are also required to plate anti-reflection film in end face,
Guarantee laser coupling efficiency, fuel factor caused by avoiding laser power from being lost and optical fiber damage.
Presently, it expands in general output in the conventional application such as input coupling, it is higher to require that end caps have
Power penetrates efficiency, while avoiding may cause the unstable feedback of system.Therefore, it there is no one kind that can be provided simultaneously with instead at present
Feedback and the bidirectional optical fiber end cap for inhibiting stimulated raman scattering.
Summary of the invention
It is all using the length for reducing gain fibre and to increase gain fibre mode field area for above-mentioned prior art
Mode inhibits stimulated Raman scattering, but both modes will lead to the unstable threshold reduction of fiber mode again, to be only capable of
The limited deficiency for inhibiting stimulated Raman scattering, the present invention provides a kind of wavelength plated film end caps for inhibiting stimulated Raman scattering
Group in an oscillator by its application can inhibit to be excited to draw in all -fiber oscillator while realizing that laser output expands
Graceful scattering effect.
The technical scheme is that a kind of wavelength plated film end cap group for inhibiting stimulated Raman scattering, it includes first end
Cap and the second end cap, first end cap and the second end cap include optical fiber and the quartz wedge that connect with optical fiber；The quartz wedge
The integral structure being connected in sequence for the identical rotary table of connecting end surface size, cylinder and output curved body；The one of the optical fiber
The small end face welding of the rotary table of a end face and quartz wedge forms interface；The core centre line extended line of the optical fiber is quartz
The rotary table and cylinder and output curved body center line of block；The surface of the output curved body of the quartz wedge is in the fibre core with optical fiber
Heart extended line and the intersection point at interface are the centre of sphere, with quartz wedge center line in the sum of rotary table and cylinder and the output intracorporal length of curved surface
For the spherical crown of radius of curvature；There is plated film on the curved surface of the output curved body of the quartz wedge；Curved surface is exported in first end cap
Plated film on the curved surface of body has the height equal to or more than 99% anti-900-1000 nano waveband and 1060-1100 nano waveband
Penetrate rate and to its all band total transmissivity；The plated film on the curved surface of curved body is exported in second end cap to 1060-1100 nanometers
Wave band has the antiradar reflectivity within the scope of 5%-20% and to its all band total transmissivity.
Further, all band includes amplified spontaneous emission wave band and Raman wavelength wave band.
Further, the wave-length coverage of above-mentioned amplified spontaneous emission wave band is 1030 ± 20 nanometers；The Raman wavelength
Wave band refers to that Output of laser wavelength moves to right about 56 nanometers.
Also further, above-mentioned optical fiber is the optical fiber for generating and transmitting for laser, for the gain fibre for mixing rare earth ion
Or do not mix the energy-transmission optic fibre of rare earth ion；And the cross-sectional structure of optical fiber is selected from the light of single covering, double clad and triple clad structure
One of fine cross-sectional structure；The core diameter of optical fiber is in 10-200 micron range, when the cross-sectional structure of optical fiber is double
When cladding structure, inner cladding diameter is between 100-1000 microns；Outer cladding diameter is between 250-2000 microns.
Also further, the small end face size of the rotary table of above-mentioned quartz wedge is 2-5 times of the diameter of the outermost covering of optical fiber.
Also further, the interface of above-mentioned optical fiber and quartz wedge welding is smooth flat, the smooth flat and optical fiber, quartz
The length direction and laser transmission direction of block are vertical.
Also further, the cylinder of above-mentioned quartz wedge is used for the mechanical grip and fixation of end caps, and length is in 10 millis
Between -100 millimeters of rice, diameter is between 3 millimeters -500 millimeters.
Also further, above-mentioned cylinder is cylindrical body.
The present invention also provides the wavelength plated film end cap groups of above-mentioned inhibition stimulated Raman scattering in all -fiber oscillator
Using: the wavelength plated film end cap for the high reflection that first end cap is formed is acted on the high reflection grating in conventional all-optical fibre oscillator
It is identical；The wavelength plated film end cap for the low reflection that second end cap is formed is exported with the low reflection coupling in conventional all-optical fibre oscillator
Grating effect is identical.First end cap and the second end cap constitute the reaction cavity of optical fiber laser, in conjunction with pumping source and gain light
The oscillator output of all -fiber may be implemented in fibre.Since end caps take wavelength plated film mode, the same of Laser feedback is realized
When, so that not starting of oscillation of the laser in Raman bands is realized higher to have the function that inhibit stimulated Raman scattering in oscillator
The output of power.
In the present invention: because of the input end face welding of the output end face and quartz wedge of optical fiber, forming interface；Laser is through optical fiber
Enter in quartz wedge from interface, laser facula is transmitted and expanded in quartz wedge；The output end face of quartz wedge is special designing
Curved surface has the plated film for wavelength on curved surface, and the plated film on the first end cap mean camber is to 900-1000 nano waveband and 1060-
1100 nano waveband high reflections, to its all band especially ASE wave band (1030 nanometers) and Raman bands, (optical maser wavelength+56 is received
Rice) total transmissivity；Plated film on second end cap mean camber especially puts the low reflection of 1060-1100 nano waveband to its all band
Big spontaneous radiation wave band (1030 nanometers) and Raman bands (+56 nanometers of optical maser wavelength) total transmissivity, in this way when the two is used for together
In oscillator while realizing Laser feedback output, guarantee amplified spontaneous emission and Raman light not starting of oscillation, reaches inhibition oscillation
The effect of stimulated raman scattering in device.
The present invention plates high reflection to required laser signal wave band in an end cap in the way of optical maser wavelength plated film
Film is traditional complete to substitute to amplified spontaneous emission wave band (1030 nanometers) and Raman bands (+56 nanometers of optical maser wavelength) total transmissivity
High reflection fiber grating in fiber oscillator device；Low reflection is plated to required laser signal optical band in another end cap
Film, to its all band, such as amplified spontaneous emission wave band (1030 nanometers) and Raman bands (+56 nanometers of optical maser wavelength) full impregnated
It penetrates, to substitute the low reflection output coupling fiber grating in conventional all-optical fibre oscillator, can achieve following technical effect:
1, realize expanding and laser reflection, feedback for optical-fiber laser simultaneously: using the divergence characterization of laser, optical fiber output swashs
Hot spot expands naturally when light transmits in quartz wedge, by rationally design quartz wedge, change laser transmitted in quartz wedge away from
From the output of various sizes of hot spot may be implemented；By the output curved surface of rational design, guarantee that the light beam of camber reflection can have
Effect is incident in fiber core；By there is the plating of quartz wedge output end face the reflective coating of certain reflectivity, may be implemented to swash
The feedback of light.
2, by the plated film on the first end cap mean camber, to 900-1000 nano waveband and 1060-1100 nano waveband
High reflection, remaining wave band, especially amplified spontaneous emission wave band (1030 nanometers) and Raman bands (+56 nanometers of optical maser wavelength) are complete
Transmission；Plated film on the second end cap mean camber, reflection low to 1060-1100 nano waveband, remaining wave band, especially amplification are certainly
Radiation wave band (1030 nanometers) and Raman bands (+56 nanometers of optical maser wavelength) total transmissivity is sent out, the two in oscillator for that can have
Effect ground inhibits the starting of oscillation of Raman bands laser, inhibits stimulated raman scattering therein.This makes end cap group substitute traditional light
While fine optical grating constitution resonant cavity, the stimulated Raman scattering being able to suppress in laser realizes high power all -fiber oscillator
Output.
Detailed description of the invention
From the detailed description with reference to the accompanying drawing to the embodiment of the present invention, these and/or other aspects of the invention and
Advantage will become clearer and be easier to understand, in which:
Fig. 1 is the structural schematic diagram for inhibiting the wavelength plated film end cap group of stimulated Raman scattering in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the first end cap A in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the second end cap B in the embodiment of the present invention；
Fig. 4 is in the embodiment of the present invention using all -fiber oscillator for the wavelength plated film end cap group for inhibiting stimulated Raman scattering
Structural schematic diagram.
Specific embodiment
In order to make those skilled in the art more fully understand the present invention, with reference to the accompanying drawings and detailed description to this hair
It is bright to be described in further detail.
Embodiment 1
A kind of wavelength plated film end cap group inhibiting stimulated Raman scattering, structural schematic diagram is as shown in Figure 1, include the first end cap
A and the second end cap B, wherein the structure of the first end cap A as shown in Fig. 2, the second end cap B structure fig. 3, it is shown that
The first end cap A and the second end cap B includes the quartz wedge 12 of optical fiber 11, special designing: the optical fiber 11 can be double-contracting
Layer optical fiber, is made of fibre core 15, inner cladding 16, surrounding layer 17, is also possible to single cladded-fiber, be made of fibre core 15, covering 17；
Quartz wedge 12 is that the one being connected in sequence by the identical rotary table 18 of connecting end surface size, cylinder 19 and output curved body 14 is tied
Structure；Become an interface after the output end face of optical fiber 11 and input end face (i.e. the small end face of rotary table 18) welding of quartz wedge 12
13；After laser is transferred to interface 13 from fiber core 15, into quartz wedge 12, laser successively passes through 18th area of rotary table of quartz wedge
After domain, 19 regional nature of cylinder expand, the curved surface of output curved body 14 is reached；The output curved body 14 of quartz wedge 12 is with optical fiber
11 core centre extended lines and the intersection point at interface 13 are the centre of sphere, in rotary table 18 and cylinder 19 and are exported with the center line of quartz wedge 12
Length in curved body 14 and the spherical surface for radius of curvature, exporting on the curved surface of curved body 14 has plated film, defeated in the first end cap A
The plated film on the curved surface of curved body 14 is more than or equal to the reflectivity of 900-1000 nano waveband and 1060-1100 nano waveband out
99%, preferably 100% and to its all band such as amplified spontaneous emission wave band (1030 nanometers) and Raman bands (optical maser wavelength+
56 nanometers) total transmissivity；The plated film exported on 14 curved surface of curved body in second end cap B has 5%- to 1060-1100 nano waveband
20% range, preferably 10% antiradar reflectivity (residue 90% transmit) and to its all band such as amplified spontaneous emission wave band
(1030 nanometers) and Raman bands (+56 nanometers of optical maser wavelength) total transmissivity, by the two with being may be implemented in an oscillator to expansion
While Shu Jiguang carries out expanding output, guarantee effective laser wavelength starting of oscillation, and Raman bands laser is all lost, and reaches inhibition
The effect of stimulated Raman scattering.
Embodiment 2
A kind of all -fiber oscillator of the wavelength plated film end cap group of application inhibition stimulated Raman scattering, structure such as Fig. 4 institute
Show, it includes the first end cap A, the second end cap B, mixes rare earth ion gain fibre 23, pump signal bundling device 24, fiber coupling half
Conductor laser 25, signal energy-transmission optic fibre 26, pumping energy-transmission optic fibre 27；The signal energy-transmission optic fibre 26 by the first end cap A, pumping
Signal bundling device 24 mixes rare earth ion gain fibre 23 and the second end cap B is sequentially connected；The pump signal bundling device 24 has one
A or multiple pumping arms, a signal input arm, a signal output arm；One group of fiber coupled laser diode 25 passes through pump
Pu energy-transmission optic fibre 27 is connected to the pumping arm of pump signal bundling device 24；The structure of the first end cap A and the second end cap B are strictly according to the facts
It applies shown in example 1, and the size of the first end cap A and the second end cap B building block is identical, the reflection of the first end cap A and the second end cap B
Central wavelength matching, constitutes laser feedback resonant cavity.The course of work of the oscillator are as follows: pump light is from the fiber coupling
Pump signal bundling device 24 is injected after the output of 25 output end of semiconductor laser, is then injected into through signal energy-transmission optic fibre 26 described
Optical fiber laser resonant cavity in, gain fibre under the feedback of the excitation resonant cavity of pump light, generate laser output.Output
The light of 900-1000 nano waveband and 1060-1100 nano waveband is all reflected back humorous under the reflection of the first end cap A in laser
In vibration chamber, and the laser of remaining wave band is then all transmitted from the first end cap A in light beam, guarantee pumping laser and effectively letter in this way
Number laser can vibrate in resonant cavity.Laser exports only 1060-1100 nanometers after the low reflection feedback of the second end cap B
The signal laser of wave band, according to Principles of Laser, due to amplified spontaneous emission wave band (1030 nanometers) and Raman bands (optical maser wavelength
+ 56 nanometers) laser there is no effective Feedback in resonant cavity, be unable to starting of oscillation so that output laser in be free of Raman bands laser,
To achieve the effect that inhibit stimulated Raman scattering in all -fiber oscillator.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.Therefore, protection scope of the present invention is answered
This is subject to the protection scope in claims.
Claims (9)
1. a kind of wavelength plated film end cap group for inhibiting stimulated Raman scattering, which is characterized in that it includes the first end cap (A) and second
End cap (B), first end cap (A) and the second end cap (B) are including optical fiber (11) and the quartz wedge connecting with optical fiber (11)
(12)；
The quartz wedge (12) is that the identical rotary table of connecting end surface size (18), cylinder (19) and output curved body (14) successively connect
Integral structure made of connecing；
The small end face welding of the rotary table (18) of an end face and quartz wedge (12) for the optical fiber (11) is formed interface (13)；
The core centre line extended line of the optical fiber (11) be quartz wedge (12) rotary table (18) and cylinder (19) and export curved surface
Body (14) center line；
The surface of the output curved body (14) of the quartz wedge (12) is with the core centre extended line of optical fiber (11) and interface
(13) intersection point is the centre of sphere, with length of quartz wedge (12) center line in rotary table (18) and cylinder (19) and output curved body (14)
The sum of degree is the spherical crown of radius of curvature；
There is plated film on the curved surface of the output curved body (14) of the quartz wedge (12)；
The plated film exported on the curved surface of curved body (14) in first end cap receives 900-1000 nano waveband and 1060-1100
VHF band has the reflectivity more than or equal to 99% and to its all band total transmissivity；
The plated film exported on the curved surface of curved body (14) in second end cap has 5%-20% to 1060-1100 nano waveband
The reflectivity of range and to its all band total transmissivity.
2. the wavelength plated film end cap group according to claim 1 for inhibiting stimulated Raman scattering, which is characterized in that
Its all band includes amplified spontaneous emission wave band and Raman wavelength wave band.
3. the wavelength plated film end cap group according to claim 2 for inhibiting stimulated Raman scattering, which is characterized in that the amplification
The wave-length coverage of spontaneous radiation wave band is 1030 ± 20 nanometers；The Raman wavelength wave band refers to that Output of laser wavelength moves to right about 56
Nanometer.
4. the wavelength plated film end cap group according to claim 3 for inhibiting stimulated Raman scattering, which is characterized in that the optical fiber
It (11) is the optical fiber for generating and transmitting for laser, to mix the gain fibre of rare earth ion or not mixing the biography energy light of rare earth ion
It is fine；And the cross-sectional structure of optical fiber (11) in the cross section of optic fibre structure of single covering, double clad and triple clad structure one
Kind；The core diameter of optical fiber (11) is in 10-200 micron range, when the cross-sectional structure of optical fiber (11) is double-clad structure,
Inner cladding diameter is between 100-1000 microns；Outer cladding diameter is between 250-2000 microns.
5. the wavelength plated film end cap group according to claim 3 for inhibiting stimulated Raman scattering, which is characterized in that the quartz
The small end face size of the rotary table (18) of block (12) is 2-5 times of the diameter of optical fiber (11) outermost covering.
6. the wavelength plated film end cap group according to claim 3 for inhibiting stimulated Raman scattering, which is characterized in that the optical fiber
It (11) is smooth flat, the length of the smooth flat and optical fiber (11), quartz wedge (12) with the interface (13) of quartz wedge (12) welding
It spends direction and laser transmission direction is vertical.
7. the wavelength plated film end cap group according to claim 3 for inhibiting stimulated Raman scattering, which is characterized in that the quartz
The cylinder (19) of block (12) is used for the mechanical grip and fixation of end caps, and length is straight between 10 millimeters -100 millimeters
Diameter is between 3 millimeters -500 millimeters.
8. the wavelength plated film end cap group according to claim 3 for inhibiting stimulated Raman scattering, which is characterized in that the cylinder
It (19) is cylindrical body.
9. inhibit the wavelength plated film end cap group of stimulated Raman scattering in -8 described in any claim according to claim 1,
It is characterized in that, it is applied in full optical fiber laser oscillator, and first end cap (A) is used as high reflection fiber grating；Described
Two end caps (B) are used as low light reflectivity fibre grating, and the two constitutes Laser feedback resonant cavity together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234404.1A CN109149335B (en) | 2018-10-23 | Wavelength coating end cap group for inhibiting stimulated Raman scattering and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234404.1A CN109149335B (en) | 2018-10-23 | Wavelength coating end cap group for inhibiting stimulated Raman scattering and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149335A true CN109149335A (en) | 2019-01-04 |
| CN109149335B CN109149335B (en) | 2024-05-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729626A (en) * | 2019-10-24 | 2020-01-24 | 武汉锐科光纤激光技术股份有限公司 | Method for changing laser output divergence angle |
| CN112397980A (en) * | 2020-11-19 | 2021-02-23 | 中国兵器装备研究院 | Double-end optical fiber end cap based on two-color phase film |
| CN117220127A (en) * | 2023-11-07 | 2023-12-12 | 中国工程物理研究院激光聚变研究中心 | Fiber laser capable of inhibiting stimulated Raman scattering and parameter optimization method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729626A (en) * | 2019-10-24 | 2020-01-24 | 武汉锐科光纤激光技术股份有限公司 | Method for changing laser output divergence angle |
| CN112397980A (en) * | 2020-11-19 | 2021-02-23 | 中国兵器装备研究院 | Double-end optical fiber end cap based on two-color phase film |
| CN117220127A (en) * | 2023-11-07 | 2023-12-12 | 中国工程物理研究院激光聚变研究中心 | Fiber laser capable of inhibiting stimulated Raman scattering and parameter optimization method thereof |
| CN117220127B (en) * | 2023-11-07 | 2024-03-19 | 中国工程物理研究院激光聚变研究中心 | Fiber laser capable of inhibiting stimulated Raman scattering and parameter optimization method thereof |
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