CN103293594A - Large-mode-field quartz energy transmission optical fiber - Google Patents
Large-mode-field quartz energy transmission optical fiber Download PDFInfo
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- CN103293594A CN103293594A CN2013102693293A CN201310269329A CN103293594A CN 103293594 A CN103293594 A CN 103293594A CN 2013102693293 A CN2013102693293 A CN 2013102693293A CN 201310269329 A CN201310269329 A CN 201310269329A CN 103293594 A CN103293594 A CN 103293594A
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- 239000013307 optical fiber Substances 0.000 title abstract description 15
- 230000005540 biological transmission Effects 0.000 title abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract description 9
- 239000010453 quartz Substances 0.000 title abstract 3
- 239000000835 fiber Substances 0.000 claims abstract description 67
- 238000005253 cladding Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 27
- 238000010586 diagram Methods 0.000 description 10
- 230000007123 defense Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention provides a large mode field quartz energy transmission optical fiber, which comprises a fiber core, and annular claddings which are arranged around the fiber core in a staggered manner and surround two or more than two refractive indexes in a staggered manner. The large-mode-field quartz energy-transfer optical fiber adopts the annular structure with the refractive index staggered in height around the fiber core, so that the mode field area is greatly increased.
Description
Technical field
The invention belongs to optical field, relate to a kind of method for designing of the quartzy energy-transmission optic fibre in big mould field of many coverings ring texture.
Background technology
The superlaser Transmission Fibers all is with a wide range of applications in fields such as national security, national defense construction, the industrialization of new high-technology and scientific and technological forward positions.Can be used for the fiber optic materials of superlaser transmission, the traditional double clad silica fiber is typical representative, and this mainly has benefited from it and is increasing mode field area by reducing the fibre core numerical aperture, realizes the high energy transmission thereby effectively reduce nonlinear effect.But the traditional double clad silica fiber also has intrinsic restriction, and for example the fibre core numerical aperture can not infinitely reduce, and mode field area can not infinitely increase etc.Comparatively speaking, the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture keeping realizing bigger mode field area under the situation of comparable size with the traditional double clad silica fiber, thereby the equivalent material that can become doubly clad optical fiber enters the national defense safety field.
Bending loss is one of biggest obstacle that realizes the high energy transmission.The basic mode bending loss causes the transmission energy to reduce, and high-order mode and basic mode bending loss too approach the increase of restriction mode field area.Therefore, design the basic mode loss little (＜1dB/m) the high-order mode loss big (＞100dB/m) big mould field optical fiber becomes a scientific research difficult problem.The main method that reduction basic mode bending loss increases the high-order mode bending loss simultaneously is to realize by adjusting sandwich layer refractive index and cladding index distributed architecture.Therefore how to obtain still keeping the big mould field optical fiber of good single-mode behavior to become an important scientific research exercise question than big mode field area.
Summary of the invention
In order to solve existing technical matters in the background technology, the invention provides the quartzy energy-transmission optic fibre in a kind of big mould field, the ring texture by adopting refractive index just to interlock around fibre core has improved mode field area to a great extent.
Technical solution of the present invention: the quartzy energy-transmission optic fibre in big mould field, comprise fibre core, it is characterized in that: the staggered ring-type covering that is crisscross arranged around two or more refractive index around the described fibre core.
Above-mentioned covering comprises first covering and second covering, and described first covering and second covering are crisscross arranged, and the refractive index of described first covering is greater than the refractive index of second covering.
The ranges of indices of refraction 1.44217～1.47012 of above-mentioned first covering, width are 1～8 μ m.
The ranges of indices of refraction 1.44217～1.47012 of above-mentioned second covering, width are 1～8 μ m.
The number of plies of above-mentioned first covering and second covering is respectively 3～12 layers.
The refractive index of above-mentioned fibre core is 1.44862, and core diameter is 20 μ m.
The beneficial effect of the invention: the ring texture of the present invention by adopting refractive index just to interlock around fibre core, improved mode field area to a great extent.At 1080nm place mode field area greater than 400 μ m
2, the basic mode bending loss is less than 1dB/m, and the high-order mode bending loss can satisfy near the signal transmission requirements of high power laser light 1.0 μ m greater than 100dB/m..The quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture is the strong rival of traditional double cladding large mode field optical fiber, is expected to be widely used in national defense industry and the economic construction.
Description of drawings
Fig. 1 is the schematic cross-section of the quartzy energy-transmission optic fibre in big mould field of many coverings ring texture provided by the present invention;
Fig. 2 is the refractive index profile of the 5th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention;
Fig. 3 is the refractive index profile of the 30th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention;
Fig. 4 is the refractive index profile of the 92nd embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention;
Fig. 5 is the refractive index profile of the 117th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention;
Fig. 6 is the refractive index profile of the 124th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention;
Fig. 7 .1, the 7.2nd, the 5th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at superlaser zone and traditional double covering step optical fiber mode field area comparison diagram and basic mode and high-order mode bending loss comparison diagram;
Fig. 8 .1, the 8.2nd, the 30th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at superlaser zone and traditional double covering step optical fiber mode field area comparison diagram and basic mode and high-order mode bending loss comparison diagram;
Fig. 9 .1, the 9.2nd, the 92nd embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at superlaser zone and traditional double covering step optical fiber mode field area comparison diagram and basic mode and high-order mode bending loss comparison diagram;
Figure 10 .1, the 10.2nd, the 117th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at superlaser zone and traditional double covering step optical fiber mode field area comparison diagram and basic mode and high-order mode bending loss comparison diagram;
Figure 11 .1, the 11.2nd, the 124th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at superlaser zone and traditional double covering step optical fiber mode field area comparison diagram and basic mode and high-order mode bending loss comparison diagram.
Embodiment
Referring to Fig. 1, the quartzy energy-transmission optic fibre in big mould of the present invention field,, for being refracted rate height (n around the fibre core
h) low (n
1) staggered many coverings center on, when cladding index and thickness met certain relation, the light that satisfies condition was strapped in the scope of optical fiber preferably to preceding propagation, and other light then dissipates through bigger loss.By suitable design, the basic mode in the ring texture optical fiber requires other patterns of its loss ratio to hang down several magnitude, through the transmission of a segment length, only has basic mode to remain in the optical fiber, realizes effective single mode transport thus.The structure of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture of the present invention is to be 1.44862 by fiber core refractive index, and diameter is 20 μ m, on every side by high index of refraction (n
h=1.44862), width (L
h) be 1～8 μ m, the number of plies (N
h) be 3～12 layers and low-refraction (n
1=1.44692), width (L
1) be 1～8 μ m, the number of plies (N
1) be that 3～12 layers structure is formed.
Specific embodiments of the invention are referring to showing 1-table 14:
Table 1
| |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| L h | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 |
| L 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 |
| N h | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 3 | 4 |
| N 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 3 | 4 |
Table 2
| Embodiment | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| L h | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 |
| L 1 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 |
| N h | 5 | 6 | 7 | 8 | 3 | 4 | 5 | 6 | 3 | 4 | 5 | 3 |
| N 1 | 5 | 6 | 7 | 8 | 3 | 4 | 5 | 6 | 3 | 4 | 5 | 3 |
Table 3
| Embodiment | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| L h | 6 | 7 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| L 1 | 6 | 7 | 8 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 |
| N h | 4 | 3 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 3 |
| N 1 | 4 | 3 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 3 |
Table 4
| Embodiment | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
| L h | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| L 1 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 6 |
| N h | 4 | 5 | 6 | 7 | 8 | 3 | 4 | 5 | 6 | 7 | 3 | 4 |
| N 1 | 4 | 5 | 6 | 7 | 8 | 3 | 4 | 5 | 6 | 7 | 3 | 4 |
Table 5
| Embodiment | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |
| L h | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 |
| L 1 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 4 | 4 | 4 | 4 |
| N h | 5 | 6 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 5 | 6 |
| N 1 | 5 | 6 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 5 | 6 |
Table 6
| Embodiment | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 |
| L h | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| L 1 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 |
| N h | 3 | 4 | 5 | 6 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 |
| N 1 | 3 | 4 | 5 | 6 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 |
Table 7
| Embodiment | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 90 | 81 | 82 | 83 | 84 |
| L h | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 |
| L 1 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 6 | 6 |
| N h | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 3 | 4 | 3 | 4 |
| N 1 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 3 | 4 | 3 | 4 |
Table 8
| Embodiment | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 |
| L h | 5 | 5 | 5 | 6 | 6 | 7 | 2 | 3 | 4 | 5 | 6 | 7 |
| L 1 | 7 | 7 | 8 | 7 | 8 | 8 | 1 | 1 | 1 | 1 | 1 | 1 |
| N h | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| N 1 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Table 9
| Embodiment | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 |
| L h | 8 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 |
| |
1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| N h | 3 | 5 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 3 | 4 | 5 |
| N 1 | 3 | 5 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 3 | 4 | 5 |
Table 10
| Embodiment | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 |
| L h | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
| L 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| N h | 6 | 7 | 8 | 3 | 4 | 5 | 6 | 7 | 3 | 4 | 5 | 6 |
| N 1 | 6 | 7 | 8 | 3 | 4 | 5 | 6 | 7 | 3 | 4 | 5 | 6 |
Table 11
| Embodiment | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 |
| L h | 7 | 7 | 7 | 8 | 8 | 8 | 4 | 4 | 4 | 4 | 4 | 5 |
| L 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 |
| N h | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 5 | 6 | 7 | 3 |
| N 1 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 5 | 6 | 7 | 3 |
Table 12
| Embodiment | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 |
| L h | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 5 | 5 |
| L 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 |
| N h | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 3 | 4 |
| N 1 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 5 | 3 | 4 | 3 | 4 |
Table 13
| Embodiment | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 |
| L h | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 6 | 6 | 7 | 7 |
| L 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 |
| N h | 5 | 3 | 4 | 5 | 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 |
| N 1 | 5 | 3 | 4 | 5 | 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 |
Table 14
| Embodiment | 157 | 158 | 159 | 160 |
| L h | 8 | 7 | 8 | 8 |
| L 1 | 5 | 6 | 6 | 7 |
| N h | 3 | 3 | 3 | 3 |
| N 1 | 3 | 3 | 3 | 3 |
In said structure, the preferred structure that the present invention adopts is the L of 1～3 μ m
1, the L of 3～6 μ m
h, the N of 2～7 μ m
hAnd N
1
Referring to Fig. 1, the structural drawing of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the invention, this structure has refractive index height (n around fibre core
h) low (n
1) staggered many coverings center on, white portion represents high index of refraction n
h=1.44217～1.47012, darker regions represents low-refraction n
1=1.44217～1.47012.
Referring to Fig. 2, the refractive index profile of the 5th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention; Among this embodiment, structural design is L
1=2 μ m, N
1=7; L
h=2 μ m, N
h=7.
Referring to Fig. 3, the refractive index profile of the 30th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention; Among this embodiment, structural design is L
1=3 μ m, N
1=6; L
h=2 μ m, N
h=6.
Referring to Fig. 4, the refractive index profile of the 92nd embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention; Among this embodiment, structural design is L
1=1 μ m, N
1=3; L
h=3 μ m, N
h=3.
Referring to Fig. 5, the refractive index profile of the 117th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention; Among this embodiment, structural design is L
1=2 μ m, N
1=3; L
h=6 μ m, N
h=3.
Referring to Fig. 6, the refractive index profile of the 124th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention; Among this embodiment, structural design is L
1=2 μ m, N
1=3; L
h=8 μ m, N
h=3.
Referring to Fig. 7 .1,7.2, the 5th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at mode field area figure and the bending loss figure in superlaser zone; Among this embodiment, near the mould scene 1.08 μ m is greater than 270 μ m
2, greater than traditional double cladded-fiber mode field area, and its high-order mode bending loss can be used as the superlaser Transmission Fibers much larger than the basic mode bending loss.
Referring to Fig. 8 .1,8.2, the 30th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at mode field area figure and the bending loss figure in superlaser zone; Among this embodiment, near the mould scene 1.08 μ m is greater than 250 μ m
2, greater than traditional double cladded-fiber mode field area, and its high-order mode bending loss can be used as the superlaser Transmission Fibers much larger than the basic mode bending loss.
Referring to Fig. 9 .1,9.2, the 92nd embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at mode field area figure and the bending loss figure in superlaser zone; Among this embodiment, near the mould scene 1.08 μ m is greater than 380 μ m
2, greater than traditional double cladded-fiber mode field area, and its high-order mode bending loss can be used as the superlaser Transmission Fibers much larger than the basic mode bending loss.
Referring to Figure 10 .1,10.2, the 117th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at mode field area figure and the bending loss figure in superlaser zone; Among this embodiment, near the mould scene 1.08 μ m is greater than 400 μ m
2, greater than traditional double cladded-fiber mode field area, and its high-order mode bending loss can be used as the superlaser Transmission Fibers much larger than the basic mode bending loss.
Referring to Figure 11 .1,11.2, the 124th embodiment of the quartzy energy-transmission optic fibre in the big mould field of many coverings ring texture provided by the present invention is at mode field area figure and the bending loss figure in superlaser zone; Among this embodiment, near the mould scene 1.08 μ m is greater than 700 μ m
2, much larger than traditional double cladded-fiber mode field area, and its high-order mode bending loss can be used as the superlaser Transmission Fibers much larger than the basic mode bending loss.
Claims (6)
1. the quartzy energy-transmission optic fibre in big mould field comprises fibre core, it is characterized in that: the staggered ring-type covering that is crisscross arranged around two or more refractive index around the described fibre core.
2. the quartzy energy-transmission optic fibre in big mould according to claim 1 field, it is characterized in that: described covering comprises first covering and second covering, and described first covering and second covering are crisscross arranged, and the refractive index of described first covering is greater than the refractive index of second covering.
3. the quartzy energy-transmission optic fibre in big mould according to claim 2 field, it is characterized in that: the ranges of indices of refraction 1.44217～1.47012 of described first covering, width are 1～8 μ m.
4. the quartzy energy-transmission optic fibre in big mould according to claim 3 field, it is characterized in that: the ranges of indices of refraction 1.44217～1.47012 of described second covering, width are 1～8 μ m.
5. the quartzy energy-transmission optic fibre in big mould according to claim 4 field, it is characterized in that: the number of plies of described first covering and second covering is respectively 3～12 layers.
6. the quartzy energy-transmission optic fibre in big mould according to claim 5 field, it is characterized in that: the refractive index of described fibre core is 1.44862, core diameter is 20 μ m.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367788A (en) * | 2017-09-20 | 2017-11-21 | 北京交通大学 | A kind of large mode field improved multilayer groove optical fiber |
| JP2019537047A (en) * | 2016-09-29 | 2019-12-19 | エヌライト，インコーポレーテッド | Adjustable beam characteristics |
| US11858842B2 (en) | 2016-09-29 | 2024-01-02 | Nlight, Inc. | Optical fiber bending mechanisms |
| CN118311709A (en) * | 2024-06-07 | 2024-07-09 | 苏州国顺激光技术有限公司 | Multi-groove single-mode fiber with ultra-large mode field and preparation method thereof |
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|---|---|---|---|---|
| CN102023334A (en) * | 2010-12-15 | 2011-04-20 | 江苏大学 | Large-mode field fiber |
| CN102126825A (en) * | 2010-12-27 | 2011-07-20 | 成都富通光通信技术有限公司 | Radiation-resistant high-performance silica fiber and preparation method thereof |
| CN203561766U (en) * | 2013-06-28 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | Large-mode-field quartz energy transmission optical fiber |
-
2013
- 2013-06-28 CN CN2013102693293A patent/CN103293594A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023334A (en) * | 2010-12-15 | 2011-04-20 | 江苏大学 | Large-mode field fiber |
| CN102126825A (en) * | 2010-12-27 | 2011-07-20 | 成都富通光通信技术有限公司 | Radiation-resistant high-performance silica fiber and preparation method thereof |
| CN203561766U (en) * | 2013-06-28 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | Large-mode-field quartz energy transmission optical fiber |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019537047A (en) * | 2016-09-29 | 2019-12-19 | エヌライト，インコーポレーテッド | Adjustable beam characteristics |
| JP7186695B2 (en) | 2016-09-29 | 2022-12-09 | エヌライト，インコーポレーテッド | adjustable beam characteristics |
| US11858842B2 (en) | 2016-09-29 | 2024-01-02 | Nlight, Inc. | Optical fiber bending mechanisms |
| US11886053B2 (en) | 2016-09-29 | 2024-01-30 | Nlight, Inc. | Methods of and systems for processing using adjustable beam characteristics |
| US11886052B2 (en) | 2016-09-29 | 2024-01-30 | Nlight, Inc | Adjustable beam characteristics |
| CN107367788A (en) * | 2017-09-20 | 2017-11-21 | 北京交通大学 | A kind of large mode field improved multilayer groove optical fiber |
| CN118311709A (en) * | 2024-06-07 | 2024-07-09 | 苏州国顺激光技术有限公司 | Multi-groove single-mode fiber with ultra-large mode field and preparation method thereof |
| CN118311709B (en) * | 2024-06-07 | 2024-10-18 | 苏州国顺激光技术有限公司 | Multi-groove single-mode fiber with ultra-large mode field and preparation method thereof |
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Application publication date: 20130911 |