WO2017122665A1 - 間欠連結型光ファイバテープ心線および光ケーブル - Google Patents
間欠連結型光ファイバテープ心線および光ケーブル Download PDFInfo
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- WO2017122665A1 WO2017122665A1 PCT/JP2017/000604 JP2017000604W WO2017122665A1 WO 2017122665 A1 WO2017122665 A1 WO 2017122665A1 JP 2017000604 W JP2017000604 W JP 2017000604W WO 2017122665 A1 WO2017122665 A1 WO 2017122665A1
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- optical fiber
- intermittently connected
- longitudinal direction
- intermittently
- fiber ribbon
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- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4407—Optical cables with internal fluted support member
- G02B6/4409—Optical cables with internal fluted support member for ribbons
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/448—Ribbon cables
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4482—Code or colour marking
Definitions
- the present invention relates to an intermittently connected optical fiber ribbon and an optical cable.
- Patent Documents 1 and 2 disclose intermittently connected optical fiber ribbons in which non-connected portions (slits) are intermittently formed in the longitudinal direction.
- the intermittently connected optical fiber ribbon according to one aspect of the present disclosure is covered with a connection resin in a state where a plurality of optical fiber cores are arranged in parallel, and adjacent optical fiber cores are connected to each other.
- a connecting portion and a non-connecting portion in which adjacent optical fiber lines are not connected are intermittently provided in the longitudinal direction, and the non-connecting portion is provided in the longitudinal direction between at least some of the optical fibers.
- the connecting portion is recessed,
- the length of the connecting portion in the longitudinal direction is a
- the length of the portion where the non-connecting portions between different optical fiber cores overlap in the longitudinal direction is b
- the length of the non-connecting portion in the longitudinal direction is c
- the longitudinal direction When the interval between the connecting portions is p, c / a ⁇ 1.5, b ⁇ 50 mm, (c / a) ⁇ p ⁇ 200 mm It is.
- An optical cable according to an aspect of the present disclosure is an optical cable having a cylindrical tube and a plurality of the intermittently connected optical fiber ribbons, The plurality of intermittently connected optical fiber ribbons are covered with the tube in a bundled state.
- An optical cable according to another aspect of the present disclosure is an optical cable having a slot rod having a plurality of slot grooves and a plurality of the intermittently connected optical fiber ribbons.
- the plurality of intermittently connected optical fiber ribbons are respectively housed in the slot grooves.
- the unconnected portion may be longer than the connected portion, and the proportion of the unconnected portion may be larger.
- the flexibility as a tape increases as the proportion of the unconnected portion increases, it is possible to suppress the deterioration of the transmission characteristics of the optical fiber.
- the proportion of the unconnected portion is increased, the optical fiber core wire is likely to be separated. For this reason, when such a tape core is set in a fuser holder for fusion splicing, the optical fiber core is moved and the arrangement of the optical fiber core is switched or the optical fiber core is displaced from the groove of the holder. There is a risk that problems may occur at the time of fusion splicing when riding on the connecting part.
- an object of the present disclosure is to provide an intermittently connected optical fiber ribbon and an optical cable that can suppress the deterioration of transmission characteristics of an optical fiber and can prevent occurrence of problems during fusion splicing. It is to provide.
- the present disclosure it is possible to suppress the deterioration of the transmission characteristics of the optical fiber, and it is possible to prevent the occurrence of problems at the time of fusion splicing.
- the intermittently connected optical fiber ribbon according to the embodiment of the present invention, (1) A plurality of optical fiber core wires are covered with a connecting resin in a state where they are arranged in parallel, and a connection portion where adjacent optical fiber core wires are connected and an adjacent optical fiber wire are connected.
- the non-connected portion is intermittently provided in the longitudinal direction, and the non-connected portion is not provided in the longitudinal direction between at least some of the optical fibers.
- the connecting portion is recessed,
- the length of the connecting portion in the longitudinal direction is a
- the length of the portion where the non-connecting portions between different optical fiber cores overlap in the longitudinal direction is b
- the length of the non-connecting portion in the longitudinal direction is c
- the longitudinal direction When the interval between the connecting portions is p, c / a ⁇ 1.5, b ⁇ 50 mm, (c / a) ⁇ p ⁇ 200 mm It is.
- the value of (c / a) ⁇ p is 400 mm or more. Thereby, the deterioration of the transmission characteristic of an optical fiber can further be suppressed.
- An optical cable according to an embodiment of the present invention is (4) An optical cable having a cylindrical tube and a plurality of intermittently connected optical fiber ribbons according to any one of (1) to (3), The plurality of intermittently connected optical fiber ribbons are covered with the tube in a bundled state. Deterioration of the transmission characteristics of the optical cable covered with the cylindrical tube can be suppressed, and the occurrence of problems at the time of fusion splicing can be prevented.
- the plurality of intermittently connected optical fiber ribbons are respectively housed in the slot grooves.
- the optical cable in which the intermittently connected optical fiber ribbon is housed in the slot groove it is possible to suppress the deterioration of the transmission characteristics and to prevent the occurrence of problems at the time of fusion splicing.
- FIG. 1A is a plan view showing an example of the configuration of an intermittently connected optical fiber ribbon according to this embodiment.
- 1B is a cross-sectional view of the position A1 in FIG. 1A.
- the intermittently connected optical fiber ribbon 1 has a plurality (12 in the example of FIGS. 1A and 1B) of optical fibers 11 to 22 arranged in parallel.
- the optical fiber core wires 11 to 22 are single-core coated optical fibers.
- the optical fiber cores 11 to 22 may be coated with different colors so that the optical fiber cores can be distinguished from each other.
- the surface of the plurality of optical fiber cores 11 to 22 arranged in parallel is coated with a connecting resin 2 for connecting the optical fiber cores to each other, and the optical fiber cores 11 to 22 are tape-shaped. Are aligned in parallel.
- the connecting resin 2 is, for example, an ultraviolet curable resin, a thermosetting resin, or the like.
- the connecting resin 2 is preferably a resin having good peelability in order to facilitate the operation of separating the single fibers of the optical fiber core wires 11 to 22.
- connection resin 4 connects the adjacent optical fiber cores with the connection resin 2, and the non-connected portion 3 does not connect the adjacent optical fiber lines.
- the connecting portion 4 is recessed.
- the non-connecting portion 3 is not provided in the longitudinal direction between at least two of the optical fibers.
- the unconnected portion 3 is provided between each of the optical fiber core wires 11 and 12, 13 and 14, 15 and 16, 17 and 18, 19 and 20, and 21 and 22. Absent.
- a general intermittently connected optical fiber ribbon has a higher flexibility as the proportion of unconnected portions is larger, and can suppress deterioration in transmission characteristics of the optical fiber.
- the greater the proportion of the unconnected portion the more easily the optical fiber cores are separated, and the optical fiber core wire is likely to move when being set in the holder of the fusion splicer during fusion splicing. For this reason, the following problems occur, and the fusion-splicing between the optical fiber ribbons cannot be performed normally.
- 2A, 2B, and 2C will be described with reference to examples of problems that occur when a conventional intermittently connected optical fiber ribbon is set in a holder of a fusion machine during fusion connection.
- 2A, 2B, and 2C schematically show each event of a malfunction that occurs when the conventional intermittently connected optical fiber ribbon 100 is set in the fuser holder 200 at the time of fusion splicing.
- single-core optical fiber cores 101 to 104 are arranged in parallel, and between all the optical fiber cores, for ease of explanation. It is assumed that the non-connecting portion 110 is provided intermittently.
- event example 1 shown in FIG. 2A is an event in which the optical fiber core wire 101 adjacent to the connecting portion 120 rides on the connecting portion 120 when the optical fiber ribbon 100 is set in the holder 200.
- event example 2 shown in FIG. 2B when the optical fiber ribbon 100 is set in the holder 200, the arrangement of the optical fibers 101 and 102 between adjacent optical fibers intersects in the holder 200.
- event. 2C is an event in which the optical fiber core wire 101 is detached from the groove of the holder 200.
- the present inventors can suppress the deterioration of the transmission characteristics of the optical fiber core and prevent a problem at the time of fusion splicing between the optical fiber ribbons.
- Experiments were conducted on possible structures. Details of the experiment are shown in the examples described later.
- the intermittently connected optical fiber ribbon 1 shown in FIG. 1 has a specific range of structural factors, the deterioration of the transmission characteristics of the optical fiber is suppressed, and the optical fiber ribbons are fused. It has been found that problems during connection can be prevented.
- an intermittently connected optical fiber ribbon is focused on the fact that the connecting portion and the non-connecting portion of the optical fiber core wire are continuously provided alternately at the same pitch in the longitudinal direction. The following parameters were considered.
- the length in the longitudinal direction of the connecting portion is a
- the length of the portion where the unconnected portions between the different optical fiber cores overlap in the longitudinal direction is b
- the length in the longitudinal direction of the unconnected portion is c
- the interval (pitch) p at which the connecting portions in the longitudinal direction are provided, and the ratio (non-connecting portion ratio) of the unconnected portions in the longitudinal direction of the optical fiber core wire are defined as c / a.
- the intermittently connected optical fiber ribbon 1 has a structure that satisfies the conditions of c / a ⁇ 1.5, b ⁇ 50 mm, and (c / a) ⁇ p ⁇ 200 mm with respect to the above parameters. Shall be. Furthermore, in order to make the fusion splicing more reliable, the intermittently connected optical fiber ribbon 1 has two adjacent ones in the longitudinal direction (in this case, the connecting portion 4) as shown in FIG. 1B. The optical fibers are preferably connected by the connecting resin 2 so that the optical fibers are in contact with each other.
- FIG. 3 is a diagram showing an example of a slotless optical cable using the intermittently connected optical fiber ribbon 1 of the present embodiment.
- FIG. 4 is a diagram illustrating an example of a tape slot type optical cable using the intermittently connected optical fiber ribbon 1 of the present embodiment.
- the optical cable shown in FIG. 3 is a slotless optical cable 30 having a cylindrical tube 32 and a plurality of intermittently connected optical fiber ribbons 1.
- the plurality of intermittently connected optical fiber ribbons 1 are bundled with an intervening 31 such as an aramid fiber. If water resistance is required, a water absorbing yarn may be inserted.
- a resin to be a tube 32 is extruded and formed around it, and the outer member 34 is covered with the tension member 33.
- resin used as the said tube 32 hard materials, such as PBT and HDPE, are used, for example.
- Reference numeral 35 denotes a tear string.
- the optical cable shown in FIG. 4 is a slot rod 44 having a plurality of slot grooves 41 and a tape slot optical cable 40 having an intermittently connected optical fiber ribbon 1.
- the optical cable 40 has a structure in which the slot grooves 41 are radially provided in a slot rod 44 having a tension member 42 in the center.
- the plurality of intermittently connected optical fiber ribbons 1 are housed in a stacked state in the plurality of slot grooves 41, respectively.
- a jacket 43 is formed around the slot rod 44.
- Example 1 (the length in the longitudinal direction of the connecting portion), b (the length of the portion where the non-connecting portions between the different optical fiber cores overlap in the longitudinal direction), c (the length in the longitudinal direction of the non-connecting portion)
- Intermittently connected optical fiber ribbons (tape Nos. 1 to 24) with different parameters were made as prototypes. Then, the transmission characteristics due to the transmission loss measured by using these intermittently connected optical fiber ribbons in a 432 slotless optical cable 30 and the failure at the time of fusion splicing between the optical fiber ribbons are investigated. did. The results are shown in Table 1 below.
- the transmission loss of 1 to 24 has a minimum value of 0.19 dB / km, and the transmission loss has a low level of 0.19 dB / km to 0.21 dB / km near this minimum value, and this 0.21 dB / km. It was found that there are high levels of 0.80 dB / km to 1.20 dB / km that greatly exceed km. Here, it is assumed that the transmission characteristic is acceptable for the low level. A product with a transmission loss of 0.21 dB / km or less and no defect at the time of fusion splicing was regarded as an acceptable product.
- Tape No. in Table 1 Among the 1 to 24, the above-mentioned acceptable products are No. 7, 8, 10 to 12, 14 to 19, and 21 to 23. All the tapes (tape Nos. 1 to 4) in which the unconnected portion ratio c / a is 1 have the transmission loss at the above-mentioned high level. When the tape has a c / a of 1.5 or more, the above-mentioned low level exists. Further, when paying attention to (c / a) ⁇ p, the transmission loss of the tapes of less than 200 mm (tape Nos. 9 and 13) is at the above-described high level.
- the failure at the time of fusion splicing is considered to be related to the parameter b (the length of the portion where the unconnected portions between different optical fiber cores overlap in the longitudinal direction).
- b the length of the portion where the unconnected portions between different optical fiber cores overlap in the longitudinal direction.
- tape No. with b 60 mm.
- Tape No. 9 and b are 67 mm.
- No. 13 caused a problem during fusion splicing.
- all the tapes with b 50 mm or less did not cause any problems during fusion splicing.
- the acceptable tape satisfies the conditions of c / a ⁇ 1.5, b ⁇ 50 mm, and (c / a) ⁇ p ⁇ 200 mm.
- the intermittently connected optical fiber ribbon 1 according to the present embodiment satisfies the above-described conditions for an acceptable product.
- those satisfying the condition of (c / a) ⁇ p ⁇ 400 mm have a transmission loss of 0.20 dB / km or less, and can further suppress the deterioration of the transmission characteristics of the optical fiber. .
- the optical fiber core As described above, according to the intermittently connected optical fiber ribbon 1 according to the present embodiment described in detail, by setting c / a ⁇ 1.5 and (c / a) ⁇ p ⁇ 200 mm, the optical fiber core The deterioration of the transmission characteristics of the wires 11 to 22 can be suppressed, and by setting b ⁇ 50 mm, it is possible to prevent a problem from occurring when the intermittently connected optical fiber ribbon 1 is fused. .
- the intermittently connected optical fiber ribbon 1 preferably has a value of (c / a) ⁇ p of 400 mm or more, and further suppresses the deterioration of the transmission characteristics of the optical fibers 11 to 22. it can.
- the intermittently connected optical fiber ribbon 1 is formed by connecting two optical fibers adjacent to each other in the longitudinal direction so that the optical fibers are in contact with each other in order to ensure fusion-bonding. 2 are preferably connected.
- the intermittently connected optical fiber ribbons 1 are bundled and covered with the cylindrical tube 32, so that deterioration of the transmission characteristics of the optical cable 30 can be suppressed. Further, when the intermittently connected optical fiber ribbon 1 is taken out and fusion-bonded, the occurrence of problems can be prevented.
- the intermittently connected optical fiber ribbon 1 is accommodated in the slot groove 41, it is possible to suppress the deterioration of the transmission characteristics of the optical cable 40. Further, when the intermittently connected optical fiber ribbon 1 is taken out and fusion-bonded, the occurrence of problems can be prevented.
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Abstract
Description
本出願は、2016年1月13日出願の日本出願特願2016-4683号に基づく優先権を主張し、前記日本出願に記載された全ての記載内容を援用するものである。
前記連結部は窪んでおり、
前記連結部の長手方向の長さをa、異なる光ファイバ心線間の前記非連結部が長手方向で重なる部分の長さをb、前記非連結部の長手方向の長さをc、長手方向の前記連結部の間隔をpとした場合、
c/a≧1.5、b≦50mm、(c/a)×p≧200mm
である。
前記複数の間欠連結型光ファイバテープ心線は、束ねられた状態で前記チューブに覆われている。
前記複数の間欠連結型光ファイバテープ心線は、前記スロット溝にそれぞれ収納されている。
例えば、上記特許文献1、2に記載された間欠連結型光ファイバテープ心線において、非連結部の方が連結部より長く、非連結部の割合が大きくなっている場合がある。このように、非連結部の割合を大きくするほどテープとしての柔軟性が上がるため、光ファイバの伝送特性の悪化を抑えることができる。ところが、非連結部の割合が大きくなると、光ファイバ心線がばらばらになりやすくなる。このため、このようなテープ心線を融着接続するために融着機のホルダにセットする際、光ファイバ心線が動いて、光ファイバ心線の配列が入れ替わったり、ホルダの溝からはずれたり、連結部に乗り上げたりして、融着接続時の不具合が発生するおそれがある。
[本開示の効果]
最初に本発明の実施形態を列記して説明する。
本発明の実施形態に係る間欠連結型光ファイバテープ心線は、
(1) 複数の光ファイバ心線が並列に配置された状態で連結樹脂に覆われており、隣接する光ファイバ心線間が連結された連結部と、隣接する光ファイバ線間が連結されていない非連結部とが長手方向に間欠的に設けられ、少なくとも一部の光ファイバ心線の二心間には長手方向に前記非連結部が設けられていない間欠連結型光ファイバテープ心線であって、
前記連結部は窪んでおり、
前記連結部の長手方向の長さをa、異なる光ファイバ心線間の前記非連結部が長手方向で重なる部分の長さをb、前記非連結部の長手方向の長さをc、長手方向の前記連結部の間隔をpとした場合、
c/a≧1.5、b≦50mm、(c/a)×p≧200mm
である。
また、連結部が窪んでいることにより単心分離しやすくすることができる。
隣接する二本の光ファイバが接していることにより、隣接する光ファイバの間隔を一定にできるため、融着接続をより確実にすることができる。また、隣接する光ファイバ心線同士の一部が接するように配置することにより、光ファイバテープ心線の断面積を小さくすることができ、光ケーブルの多心化を図ることができる。
(4) 円筒型のチューブと、上記(1)から(3)のいずれか一の複数の間欠連結型光ファイバテープ心線と、を有する光ケーブルであって、
前記複数の間欠連結型光ファイバテープ心線は、束ねられた状態で前記チューブに覆われている。
円筒型のチューブで覆われた光ケーブルの伝送特性の悪化を抑制することができ、かつ、融着接続時の不具合の発生を防止することができる。
前記複数の間欠連結型光ファイバテープ心線は、前記スロット溝にそれぞれ収納されている。
間欠連結型光ファイバテープ心線がスロット溝に収納された光ケーブルにおいて、伝送特性の悪化を抑制することができ、かつ、融着接続時の不具合の発生を防止することができる。
本発明の実施形態に係る間欠連結型光ファイバテープ心線および光ケーブルの具体例を、以下に図面を参照しつつ説明する。
なお、本発明はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。
図1A,図1Bに示すように、間欠連結型光ファイバテープ心線1は、複数(図1A,図1Bの例では、12本)の光ファイバ心線11~22が並列に配置されている。この光ファイバ心線11~22は、単心の被覆光ファイバである。なお、光ファイバ心線11~22は、光ファイバ心線同士を識別できるように、それぞれ異なる色に被覆が着色されていてもよい。
また、図2Bに示す事象例2は、ホルダ200に光ファイバテープ心線100をセットする際に、隣接する光ファイバ心線同士の光ファイバ心線101と102の配列がホルダ200内で交差する事象である。
また、図2Cに示す事象例3は、ホルダ200の溝から光ファイバ心線101がはずれてしまう事象である。
以上のような不具合の事象が発生すると、光ファイバテープ心線同士の融着接続が正常にできない。
前述のa(連結部の長手方向の長さ)、b(異なる光ファイバ心線間の非連結部が長手方向で重なる部分の長さ)、c(非連結部の長手方向の長さ)の各パラメータを変えた間欠連結型光ファイバテープ心線(テープNo.1~24)を試作した。そして、これらの間欠連結型光ファイバテープ心線を432心のスロットレス型の光ケーブル30に使用して測定した伝送損失による伝送特性と、光ファイバテープ心線同士の融着接続時の不具合を調査した。
その結果を以下の表1に示す。
そして、伝送損失が0.21dB/km以下であり、かつ、融着接続時の不具合が無いものを合格品とした。
非連結部比率c/aが1の場合のテープ(テープNo.1~4)は全て、伝送損失が上記の高レベルである。そして、c/aが1.5以上のテープになると上記の低レベルのものが存在する。また、(c/a)×pに着目すると、200mm未満のテープ(テープNo.9,13)は、伝送損失が上記の高レベルである。
2 連結樹脂
3 非連結部
4 連結部
11~22 光ファイバ心線
30、40 光ケーブル
31 介在
32 チューブ
33、42 テンションメンバ
34、43 外被
35 引き裂き紐
41 スロット溝
44 スロットロッド
100 従来の間欠連結型の光ファイバテープ心線
101~104 光ファイバ心線
110 非連結部
120 連結部
Claims (5)
- 複数の光ファイバ心線が並列に配置された状態で連結樹脂に覆われており、隣接する光ファイバ心線間が連結された連結部と、隣接する光ファイバ線間が連結されていない非連結部とが長手方向に間欠的に設けられ、少なくとも一部の光ファイバ心線の二心間には長手方向に前記非連結部が設けられていない間欠連結型光ファイバテープ心線であって、
前記連結部は窪んでおり、
前記連結部の長手方向の長さをa、異なる光ファイバ心線間の前記非連結部が長手方向で重なる部分の長さをb、前記非連結部の長手方向の長さをc、長手方向の前記連結部の間隔をpとした場合、
c/a≧1.5、b≦50mm、(c/a)×p≧200mm
である、間欠連結型光ファイバテープ心線。 - 前記(c/a)×pの値が400mm以上である、請求項1に記載の間欠連結型光ファイバテープ心線。
- 隣接する二本の光ファイバが長手方向の一部で接する、請求項1または請求項2に記載の間欠連結型光ファイバテープ心線。
- 円筒型のチューブと、請求項1から請求項3のいずれか一項に記載の複数の間欠連結型光ファイバテープ心線と、を有する光ケーブルであって、
前記複数の間欠連結型光ファイバテープ心線は、束ねられた状態で前記チューブに覆われている、光ケーブル。 - 複数のスロット溝を有するスロットロッドと、請求項1から請求項3のいずれか一項に記載の複数の間欠連結型光ファイバテープ心線と、を有する光ケーブルであって、
前記複数の間欠連結型光ファイバテープ心線は、前記スロット溝にそれぞれ収納されている、光ケーブル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17738419.5A EP3404462B1 (en) | 2016-01-13 | 2017-01-11 | Intermittently joined optical fiber ribbon and optical cable |
AU2017207081A AU2017207081B2 (en) | 2016-01-13 | 2017-01-11 | Intermittently joined optical fiber ribbon and optical cable |
CN201780006718.3A CN108463758B (zh) | 2016-01-13 | 2017-01-11 | 间断性连结型光纤带芯线及光缆 |
US15/771,797 US10488609B2 (en) | 2016-01-13 | 2017-01-11 | Intermittent-connection-type optical fiber ribbon and optical cable |
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WO2023162680A1 (ja) * | 2022-02-24 | 2023-08-31 | 昭和電線ケーブルシステム株式会社 | 光ファイバテープ心線およびスロットレス型光ケーブル |
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JP6753417B2 (ja) * | 2015-12-24 | 2020-09-09 | 住友電気工業株式会社 | 光デバイスおよび光デバイス製造方法 |
JP2017142285A (ja) * | 2016-02-08 | 2017-08-17 | 住友電気工業株式会社 | 光ファイバケーブル |
CN108474921A (zh) * | 2016-02-23 | 2018-08-31 | 住友电气工业株式会社 | 间断性连结型光纤带芯线、间断性连结型光纤带芯线的制造方法、光缆及光纤软线 |
EP3640694A4 (en) * | 2017-06-14 | 2021-03-03 | Sumitomo Electric Industries, Ltd. | SLOTTED OPTICAL CABLE |
CN113316733B (zh) | 2019-02-06 | 2023-07-18 | 住友电气工业株式会社 | 间歇连结型光纤带芯线、光纤线缆及间歇连结型光纤带芯线的制造方法 |
EP4177651A4 (en) * | 2020-07-01 | 2024-07-10 | Fujikura Ltd | OPTICAL FIBER UNIT AND MANUFACTURING METHOD THEREFOR |
WO2023027117A1 (ja) * | 2021-08-25 | 2023-03-02 | 住友電気工業株式会社 | 光ファイバケーブル |
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US20180314020A1 (en) | 2018-11-01 |
EP3404462B1 (en) | 2020-10-28 |
AU2017207081B2 (en) | 2021-08-19 |
CN108463758B (zh) | 2020-07-14 |
JP2017125932A (ja) | 2017-07-20 |
JP6657976B2 (ja) | 2020-03-04 |
TW201727298A (zh) | 2017-08-01 |
EP3404462A4 (en) | 2019-08-21 |
CN108463758A (zh) | 2018-08-28 |
AU2017207081A1 (en) | 2018-07-19 |
EP3404462A1 (en) | 2018-11-21 |
US10488609B2 (en) | 2019-11-26 |
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