JP2013041206A - Method and apparatus for cutting optical fiber - Google Patents
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Abstract
Description
本発明は、光ファイバ切断方法及び光ファイバ切断装置に関する。 The present invention relates to an optical fiber cutting method and an optical fiber cutting device.
従来、被覆層に覆われた光ファイバを切断する装置及び方法が知られている（例えば、特許文献１参照）。特許文献１に記載された装置は、被覆層に覆われた光ファイバを切断予定箇所の両側で把持するクランプと、前記切断予定箇所において前記光ファイバの軸線に対して直交する方向へ移動して前記被覆を切り込み、さらに、ガラスに傷を付与する円板状の刃部材と、前記被覆の切り込みと前記ガラスの傷付与時に前記切断予定箇所を前記刃部材の反対側から所定の圧力で押圧する枕とを有する光ファイバの切断装置であって、前記枕の先端に、前記刃部材のスライド方向に沿った溝が形成されている。 Conventionally, an apparatus and a method for cutting an optical fiber covered with a coating layer are known (see, for example, Patent Document 1). The apparatus described in Patent Document 1 moves in a direction perpendicular to the axis of the optical fiber at the planned cutting position, with a clamp that holds the optical fiber covered with the coating layer on both sides of the planned cutting position. A disk-shaped blade member that cuts the coating and further scratches the glass, and presses the planned cutting site from the opposite side of the blade member at a predetermined pressure when the coating is cut and the glass is scratched. An optical fiber cutting device having a pillow, wherein a groove along the sliding direction of the blade member is formed at the tip of the pillow.
この装置を用いた方法によれば、光ファイバを切断する前の被覆層を除去する工程を省略し、光ファイバを簡便に切断することができる。 According to the method using this apparatus, the step of removing the coating layer before cutting the optical fiber can be omitted, and the optical fiber can be cut easily.
通常、被覆層に覆われた光ファイバは、被覆層を含めた全体の中心から僅かにずれた位置にある（被覆層の膜厚が周方向で一定ではない）ことが多く、被覆層に覆われた状態で光ファイバ同士を精度よく突き当てて接続することは困難である。そのため、光ファイバを切断した後に、光ファイバの先端の被覆層を剥離する工程が必要になる。このことは、特許文献１に記載された方法においても同様であると考えられる。 In general, an optical fiber covered with a coating layer is often slightly shifted from the center including the coating layer (the thickness of the coating layer is not constant in the circumferential direction). It is difficult to connect the optical fibers with high accuracy in a broken state. Therefore, after the optical fiber is cut, a process of peeling the coating layer at the tip of the optical fiber is necessary. This is considered to be the same in the method described in Patent Document 1.
したがって、本発明の目的の一つは、先端が被覆層から露出した光ファイバの製造をより簡便に行うことができる光ファイバ切断方法、及びそれを実現することができる光ファイバ切断装置を提供することにある。 Accordingly, one of the objects of the present invention is to provide an optical fiber cutting method capable of more simply producing an optical fiber whose tip is exposed from the coating layer, and an optical fiber cutting device capable of realizing the method. There is.
本発明の一態様においては、各々が側部に刃を有し、互いの前記刃が対向するように間隔をおいて設置された第１の刃部材及び第２の刃部材の間で、前記第１の刃部材及び前記第２の刃部材の刃により、被覆層に覆われた光ファイバのクラッドに傷を付けるとともに前記傷の近傍の前記被覆層を除去する工程と、前記光ファイバにその長さ方向の引張力を加え、前記傷を含む面を切断面として前記光ファイバを切断することにより、少なくとも一方の先端が前記被覆層から露出した２つの被加工光ファイバを得る工程と、を含む、光ファイバ切断方法が提供される。 In one aspect of the present invention, each has a blade on the side, and the first blade member and the second blade member that are installed at an interval so that the blades face each other, Scratching the cladding of the optical fiber covered with the coating layer with the blades of the first blade member and the second blade member and removing the coating layer in the vicinity of the scratch; and Obtaining two processed optical fibers having at least one tip exposed from the coating layer by applying a tensile force in the length direction and cutting the optical fiber with the surface including the scratch as a cut surface; and An optical fiber cutting method is provided.
上記光ファイバ切断方法においては、前記傷の深さは０．５〜３μｍであることが好ましい。 In the optical fiber cutting method, the depth of the scratch is preferably 0.5 to 3 μm.
また、上記光ファイバ切断方法においては、前記第１の刃部材及び前記第２の刃部材の間で前記光ファイバを回転させて前記クラッドの全周に前記傷を付けることができる。 Moreover, in the said optical fiber cutting method, the said optical fiber can be rotated between the said 1st blade member and the said 2nd blade member, and the said damage | wound can be given to the perimeter of the said clad.
また、上記光ファイバ切断方法においては、前記第１の刃部材及び前記第２の刃部材の前記刃の傾斜角度を変えることにより、前記被加工光ファイバの前記被覆層から露出する部分の長さを調節することができる。 In the optical fiber cutting method, the length of the portion of the optical fiber to be processed exposed from the coating layer by changing the inclination angle of the blades of the first blade member and the second blade member. Can be adjusted.
また、上記光ファイバ切断方法においては、前記第１の刃部材及び前記第２の刃部材の刃の形状は両刃であり、前記２つの被加工光ファイバの両方の先端を前記被覆層から露出させてもよい。 In the optical fiber cutting method, the blade shape of the first blade member and the second blade member is a double blade, and the tips of both of the two optical fibers to be processed are exposed from the coating layer. May be.
また、上記光ファイバ切断方法においては、前記第１の刃部材及び前記第２の刃部材の刃は、刃先を含む第１の部分と、前記第１の刃部材及び前記第２の刃部材の面方向に対する傾斜角度が前記第１の部分よりも大きい第２の部分を有し、前記クラッドの前記傷は前記第１の部分により付けられ、前記被覆層は主に前記第２の部分により除去されてもよい。 In the optical fiber cutting method, the blades of the first blade member and the second blade member are formed of a first portion including a blade edge, the first blade member, and the second blade member. A second portion having an inclination angle with respect to a surface direction larger than that of the first portion; the scratch of the cladding is attached by the first portion; and the covering layer is mainly removed by the second portion. May be.
また、上記光ファイバ切断方法においては、前記第１の刃部材及び前記第２の刃部材の間に前記光ファイバを通し、前記第１の刃部材及び前記第２の刃部材の厚さ方向にそれぞれ前記第１の刃部材及び前記第２の刃部材と重ねて設けられた、互いに対向する側面に傾斜を有しない第１の剥離用部材及び第２の剥離用部材を用いて、前記被覆層をさらに除去してもよい。 Further, in the optical fiber cutting method, the optical fiber is passed between the first blade member and the second blade member, and in the thickness direction of the first blade member and the second blade member. The covering layer is formed by using a first peeling member and a second peeling member, which are provided so as to overlap with the first blade member and the second blade member, respectively, and have no inclination on the side surfaces facing each other. May be further removed.
本発明の他の態様においては、各々が側部に刃を有し、互いの前記刃が対向するように間隔をおいて設置された第１の刃部材及び第２の刃部材を有する光ファイバ切断装置が提供される。この光ファイバ切断装置は、前記第１の刃部材と前記第２の刃部材の間で、前記第１の刃部材及び前記第２の刃部材の刃により、被覆層に覆われた光ファイバのクラッドに前記光ファイバを切断するための傷を付けることができる。 In another aspect of the present invention, an optical fiber having a first blade member and a second blade member, each having a blade on the side, and spaced from each other so that the blades face each other. A cutting device is provided. In this optical fiber cutting device, an optical fiber covered with a coating layer by the blades of the first blade member and the second blade member between the first blade member and the second blade member. The clad can be scratched to cut the optical fiber.
上記光ファイバ切断装置においては、前記第１の刃部材及び前記第２の刃部材の刃の形状は両刃であってもよい。 In the optical fiber cutting device, the shape of the blades of the first blade member and the second blade member may be double-edged.
また、上記光ファイバ切断装置においては、前記第１の刃部材及び前記第２の刃部材の刃は、刃先を含む第１の部分と、前記第１の刃部材及び前記第２の刃部材の面方向に対する傾斜角度が前記第１の部分よりも大きい第２の部分を有してもよい。 In the optical fiber cutting device, the blades of the first blade member and the second blade member are formed of a first portion including a blade edge, the first blade member, and the second blade member. You may have a 2nd part whose inclination | tilt angle with respect to a surface direction is larger than the said 1st part.
また、上記光ファイバ切断装置においては、前記第１の刃部材及び前記第２の刃部材の厚さ方向にそれぞれ前記第１の刃部材及び前記第２の刃部材と重ねて設けられた、互いに対向する側面に傾斜を有しない第１の剥離用部材及び第２の剥離用部材をさらに有してもよい。前記第１の剥離用部材及び前記第２の剥離用部材は、前記光ファイバを前記第１の刃部材と前記第２の刃部材の間に通すことにより、前記被覆層の接触した部分近傍を剥離することができる。 Further, in the optical fiber cutting device, the first blade member and the second blade member are provided to overlap each other in the thickness direction of the first blade member and the second blade member, respectively. You may further have the 1st peeling member and the 2nd peeling member which do not have an inclination in the opposing side surface. The first peeling member and the second peeling member pass through the optical fiber between the first blade member and the second blade member, so that the vicinity of the contacted portion of the coating layer is obtained. Can be peeled off.
また、上記光ファイバ切断装置においては、前記第１の刃部材及び前記第２の刃部材は円板状の形状を有し、少なくともいずれか一方は回転しないように固定されていることが好ましい。 In the optical fiber cutting device, it is preferable that the first blade member and the second blade member have a disk shape, and at least one of them is fixed so as not to rotate.
本発明によれば、先端が被覆層から露出した光ファイバの製造をより簡便に行うことができる。 ADVANTAGE OF THE INVENTION According to this invention, manufacture of the optical fiber which the front-end | tip exposed from the coating layer can be performed more simply.
本発明の一実施の形態は、被覆層に覆われたコア及びクラッドからなる光ファイバを切断するために用いられる光ファイバ切断装置であって、各々が側部に刃を有し、互いの前記刃が対向するように間隔をおいて設置された第１の刃部材及び第２の刃部材を有し、前記第１の刃部材と前記第２の刃部材の間で、前記第１の刃部材及び前記第２の刃部材の刃により、前記光ファイバを切断するための傷を前記クラッドに付けることができる光ファイバ切断装置を提供する。以下に、この光ファイバ切断装置、及びその装置を用いた光ファイバ切断方法の例を詳細に説明する。 One embodiment of the present invention is an optical fiber cutting device used for cutting an optical fiber composed of a core and a clad covered with a coating layer, each having a blade on a side, A first blade member and a second blade member which are disposed at an interval such that the blades face each other, and the first blade between the first blade member and the second blade member; There is provided an optical fiber cutting device capable of attaching a scratch for cutting the optical fiber to the clad by a member and a blade of the second blade member. Hereinafter, an example of the optical fiber cutting device and an optical fiber cutting method using the device will be described in detail.
〔第１の実施の形態〕
（光ファイバ切断装置の構成）
図１（ａ）、（ｂ）は、それぞれ本発明の第１の実施の形態に係る光ファイバ切断装置１の上面図及び正面図である。なお、図１（ａ）の左側を向いた面を光ファイバ切断装置１の正面とする。
[First Embodiment]
(Configuration of optical fiber cutting device)
1A and 1B are a top view and a front view, respectively, of an optical fiber cutting device 1 according to a first embodiment of the present invention. In addition, let the surface which faced the left side of Fig.1 (a) be the front of the optical fiber cutting device 1. FIG.
光ファイバ切断装置１は、側部に刃を有する刃部材１０ａ、１０ｂと、刃部材１０ａ、１０ｂをそれぞれ支持する軸１１ａ、１１ｂと、軸１１ａ、１１ｂをそれぞれ支持する支持台１２ａ、１２ｂを有する。また、図示しないが、光ファイバ切断装置１は、光ファイバ２０をたるまない程度の引張力を加えて２箇所で保持する保持機構と、その保持機構の間隔を広げて、光ファイバに引張力を加えて切断するための制御機構を備える。なお、この構成は一例に過ぎず、例えば、支持台１２ａ、１２ｂが他の部材に保持されていてもよい。 The optical fiber cutting device 1 includes blade members 10a and 10b having blades on the side portions, shafts 11a and 11b that respectively support the blade members 10a and 10b, and support bases 12a and 12b that respectively support the shafts 11a and 11b. . Although not shown, the optical fiber cutting device 1 applies a tensile force that does not sag the optical fiber 20 and holds the optical fiber 20 at two locations, and widens the interval between the holding mechanisms to apply a tensile force to the optical fiber. In addition, a control mechanism for cutting is provided. In addition, this structure is only an example, for example, the support bases 12a and 12b may be hold | maintained at the other member.
光ファイバ切断装置１は、被覆層２１に覆われた光ファイバ２０を切断するために用いられる。被覆層２１に覆われた光ファイバ２０を光ファイバ切断装置１の刃部材１０ａと刃部材１０ｂとの間に通す、又は挟む（噛ませる）ことにより、光ファイバ２０を切断するための傷をクラッドに付けることができる。ここで、光ファイバ２０は、中心付近にある光の伝搬路であるコアと、その周りのクラッドからなる。コア及びクラッドは、例えば、石英ガラスからなる。また、被覆層２１は、紫外線硬化型樹脂等の樹脂材料からなる。 The optical fiber cutting device 1 is used for cutting the optical fiber 20 covered with the coating layer 21. The optical fiber 20 covered with the coating layer 21 is passed between the blade member 10a and the blade member 10b of the optical fiber cutting device 1 or sandwiched (clipped) so as to clad scratches for cutting the optical fiber 20. Can be attached to. Here, the optical fiber 20 includes a core, which is a light propagation path near the center, and a cladding around the core. The core and the clad are made of, for example, quartz glass. The covering layer 21 is made of a resin material such as an ultraviolet curable resin.
刃部材１０ａ、１０ｂは、互いの刃が対向するように間隔をおいて設置される。この刃部材１０ａと刃部材１０ｂの間隔は光ファイバ２０の太さに合わせて調節可能である。例えば、支持台１２ａと支持台１２ｂのいずれか一方又は両方が刃部材１０ａ、１０ｂの面方向と平行な方向に移動することにより、この間隔を自由に調節することができる。刃部材１０ａ、１０ｂは、例えば、図１（ａ）、（ｂ）に示されるように側部に全周にわたって刃を有する円板状の形状を有するが、他の形状を有してもよい。例えば、１／４円などの扇形形状であってもよい。 The blade members 10a and 10b are installed at intervals so that the blades face each other. The distance between the blade member 10 a and the blade member 10 b can be adjusted according to the thickness of the optical fiber 20. For example, this spacing can be freely adjusted by moving one or both of the support base 12a and the support base 12b in a direction parallel to the surface direction of the blade members 10a and 10b. The blade members 10a and 10b have, for example, a disk-like shape having blades over the entire circumference as shown in FIGS. 1A and 1B, but may have other shapes. . For example, a sector shape such as a quarter circle may be used.
本実施の形態の刃部材１０ａ、１０ｂの刃の形状は片刃である。すなわち、刃部材１０ａ、１０ｂの刃は、刃部材１０ａ、１０ｂの片面側に傾斜を有し、この傾斜は同じ側にある（すなわち、光ファイバ２０に対して線対称の関係にある）。片刃である場合、刃先の位置を視認し易いため、光ファイバ２０の切断位置の調整を容易に行うことができる。 The shape of the blades of the blade members 10a and 10b of the present embodiment is a single blade. That is, the blades of the blade members 10a and 10b have an inclination on one side of the blade members 10a and 10b, and the inclination is on the same side (that is, a line-symmetric relationship with the optical fiber 20). In the case of a single blade, it is easy to visually recognize the position of the blade edge, so that the cutting position of the optical fiber 20 can be easily adjusted.
刃部材１０ａ、１０ｂの少なくともいずれか一方は回転しないように固定されている。すなわち、刃部材１０ａ、１０ｂのいずれか一方は回転することができるように設置されていてもよい。例えば、刃部材１０ａは、軸１１ａを軸として回転できるように設置されていてもよい。この場合は、刃部材１０ａ、１０ｂは側部に全周にわたって刃を有する円板状の形状を有する。 At least one of the blade members 10a and 10b is fixed so as not to rotate. That is, any one of the blade members 10a and 10b may be installed so that it can rotate. For example, the blade member 10a may be installed so as to be rotatable about the shaft 11a. In this case, the blade members 10a and 10b have a disk-like shape having blades on the entire sides.
なお、図１（ａ）、（ｂ）は、刃部材１０ａ、１０ｂが水平方向に並んだ構成を示しているが、刃部材１０ａ、１０ｂは他の方向、例えば鉛直方向に並んでいてもよい。 1A and 1B show a configuration in which the blade members 10a and 10b are arranged in the horizontal direction, the blade members 10a and 10b may be arranged in other directions, for example, the vertical direction. .
（光ファイバの切断方法）
図２（ａ）〜（ｃ）は、光ファイバ切断装置１を用いて光ファイバ２０を切断する過程を示す水平断面図である。図２（ａ）〜（ｃ）は、コア２０１及びクラッド２０２から構成される光ファイバ２０の切断箇所近傍を拡大して示す。
(Optical fiber cutting method)
2A to 2C are horizontal cross-sectional views illustrating a process of cutting the optical fiber 20 using the optical fiber cutting device 1. 2A to 2C show an enlarged view of the vicinity of the cut portion of the optical fiber 20 composed of the core 201 and the clad 202. FIG.
被覆層２１に覆われた光ファイバ２０は、その長さ方向が刃部材１０ａ、１０ｂの厚さ方向（軸１１ａ、１１ｂの軸方向に平行な方向）に向くように保持機構に保持された状態で、刃部材１０ａと刃部材１０ｂとの間を図１（ａ）の紙面に垂直な方向に通され、被覆層２１の一部が除去され、さらにクラッド２０２に傷が付けられる。 The optical fiber 20 covered with the coating layer 21 is held by the holding mechanism so that the length direction thereof is in the thickness direction of the blade members 10a and 10b (direction parallel to the axial direction of the shafts 11a and 11b). Thus, the blade member 10a and the blade member 10b are passed in a direction perpendicular to the paper surface of FIG. 1A, a part of the coating layer 21 is removed, and the clad 202 is scratched.
光ファイバ２０を切断するために適したクラッド２０２の傷の深さは、０．５〜３μｍである。この場合、刃部材１０ａと刃部材１０ｂの間隔Ｄは、切断する光ファイバ２０の直径よりも、１〜６μｍ程度小さくなるように調節される。例えば、光ファイバ２０の直径が１２５μｍ、被覆層２１の外径が２５０μｍである場合、この間隔は１１９〜１２４μｍに設定される。 The depth of scratches on the clad 202 suitable for cutting the optical fiber 20 is 0.5 to 3 μm. In this case, the distance D between the blade member 10a and the blade member 10b is adjusted to be smaller by about 1 to 6 μm than the diameter of the optical fiber 20 to be cut. For example, when the diameter of the optical fiber 20 is 125 μm and the outer diameter of the coating layer 21 is 250 μm, this interval is set to 119 to 124 μm.
図２（ａ）は、刃部材１０ａと刃部材１０ｂが最も近接した領域を光ファイバ２０が通るときの状態を示す。刃部材１０ａと刃部材１０ｂの間隔Ｄが光ファイバ２０の直径よりも小さいため、刃部材１０ａ、１０ｂの刃の先端が光ファイバ２０に入り込み、クラッド２０２に傷が付く。また、このとき、被覆層２１の刃部材１０ａ、１０ｂの刃の傾斜部分１０１ａ、１０１ｂに触れた部分は除去される。 FIG. 2A shows a state where the optical fiber 20 passes through a region where the blade member 10a and the blade member 10b are closest to each other. Since the distance D between the blade member 10a and the blade member 10b is smaller than the diameter of the optical fiber 20, the tips of the blades of the blade members 10a and 10b enter the optical fiber 20, and the clad 202 is damaged. At this time, the portions of the coating layer 21 that touch the inclined portions 101a and 101b of the blade members 10a and 10b are removed.
図２（ｂ）は、光ファイバ２０が刃部材１０ａと刃部材１０ｂの間を通った後の状態を示す。光ファイバ２０のクラッド２０２には傷２２が残っている。ここで、図２（ｂ）において、光ファイバ２０の傷２２よりも左側の部分を光ファイバ２０ａ、右側の部分を光ファイバ２０ｂとする。光ファイバ２０ａ側の被覆層２１の傷２２の近傍の部分は、刃部材１０ａ、１０ｂの刃の傾斜部分１０１ａ、１０１ｂにより傷２４が付けられ、除去されている。 FIG. 2B shows a state after the optical fiber 20 passes between the blade member 10a and the blade member 10b. Scratches 22 remain in the cladding 202 of the optical fiber 20. Here, in FIG. 2B, a portion on the left side of the scratch 22 of the optical fiber 20 is an optical fiber 20a, and a portion on the right side is an optical fiber 20b. In the vicinity of the scratch 22 of the coating layer 21 on the optical fiber 20a side, the scratches 24 are attached and removed by the inclined portions 101a and 101b of the blades of the blade members 10a and 10b.
その状態で制御機構により保持機構の間隔を広げて、光ファイバ２０に長さ方向の引張力を加える、すなわち光ファイバ２０ａを図２（ｂ）の左方向、光ファイバ２０ｂを図２（ｂ）の右方向にそれぞれ引っ張ると、図２（ｃ）に示されるように、光ファイバ２０が傷２２を含む面を切断面として切断される。光ファイバ２０を切断することにより得られた光ファイバ２０ａの先端２０３は、被覆層２１に付けられた傷２４のために、被覆層２１から露出している。 In this state, the distance between the holding mechanisms is widened by the control mechanism, and a tensile force in the length direction is applied to the optical fiber 20, that is, the optical fiber 20a is in the left direction in FIG. 2B and the optical fiber 20b is in FIG. 2B. As shown in FIG. 2C, the optical fiber 20 is cut with the surface including the flaw 22 as a cut surface. The tip 203 of the optical fiber 20 a obtained by cutting the optical fiber 20 is exposed from the coating layer 21 because of the scratch 24 attached to the coating layer 21.
この様に、本実施の形態では、光ファイバ２０のクラッド２０２に傷を付けるのと同時に光ファイバ２０ａ側の被覆層２１を除去するため、切断と同時に先端が被覆層２１から露出した光ファイバ２０ａが得られる。切断後の被覆層を剥離する工程が必要ないため、切断を含む光ファイバの加工を簡便に行うことができる。 As described above, in this embodiment, since the coating layer 21 on the optical fiber 20a side is removed at the same time as the cladding 202 of the optical fiber 20 is scratched, the optical fiber 20a whose tip is exposed from the coating layer 21 at the same time as cutting. Is obtained. Since the process of peeling off the coating layer after cutting is not necessary, processing of the optical fiber including cutting can be performed easily.
なお、光ファイバ２０を刃部材１０ａと刃部材１０ｂとの間で回転させてもよい。これにより、傷２２が光ファイバ２０のクラッド２０２の全周に付いて切断が容易になるため、より綺麗な切断面が得られる。また、切断面におけるリップルと呼ばれる傷２２による部分的な突出部（コアよりも出っ張った部分）の発生を防止又は低減することができる。よって、光ファイバ同士を接続する際に、コア同士を近接して接続できるので光損失を小さくすることができる。さらに、傷２４が被覆層２１の全周に形成されるため、被覆層２１を効果的に除去し、光ファイバ２０ａの先端部２０３を綺麗に露出させることができる。 The optical fiber 20 may be rotated between the blade member 10a and the blade member 10b. As a result, the flaw 22 is attached to the entire circumference of the clad 202 of the optical fiber 20 and can be easily cut, so that a cleaner cut surface can be obtained. Moreover, generation | occurrence | production of the partial protrusion part (part protruded rather than the core) by the damage | wound 22 called the ripple in a cut surface can be prevented or reduced. Therefore, when connecting optical fibers, the cores can be connected close to each other, so that optical loss can be reduced. Furthermore, since the scratches 24 are formed on the entire circumference of the coating layer 21, the coating layer 21 can be effectively removed and the tip portion 203 of the optical fiber 20a can be exposed cleanly.
また、本実施の形態においては、被覆層２１の刃部材１０ａ、１０ｂの刃の傾斜部分に触れた部分が除去されるため、刃の傾斜角度を変えることにより、刃部材１０ａ、１０ｂの刃の傾斜部分と被覆層２１の接触面積を変えて、光ファイバ２０ａの露出部分の長さを調節することができる。 Moreover, in this Embodiment, since the part which touched the inclination part of the blade member 10a, 10b of the coating layer 21 is removed, changing the inclination angle of a blade, the blade member 10a, 10b of the blade member 10a, 10b. By changing the contact area between the inclined portion and the coating layer 21, the length of the exposed portion of the optical fiber 20a can be adjusted.
図３（ａ）〜（ｃ）は、刃部材１０ａの刃の傾斜角度と光ファイバ２０ａの露出部分の長さとの関係を表す概念図である。なお、図示しないが、刃部材１０ｂの刃の傾斜角度は刃部材１０ａのものと同じである。 3A to 3C are conceptual diagrams showing the relationship between the inclination angle of the blade of the blade member 10a and the length of the exposed portion of the optical fiber 20a. Although not shown, the inclination angle of the blade of the blade member 10b is the same as that of the blade member 10a.
図３（ａ）、（ｂ）、（ｃ）に示される刃部材１０ａの刃の傾斜角度（傾斜部分１０１ａ、１０１ｂが刃部材１０ａの面方向となす角）はそれぞれθ１、θ２、θ３（θ１＜θ２＜θ３＜９０°）であり、光ファイバ２０ａの露出部分の長さはそれぞれＬ１、Ｌ２、Ｌ３（Ｌ１＜Ｌ２＜Ｌ３）である。図３（ａ）〜（ｃ）に示されるように、刃部材１０ａの刃の傾斜角度を大きくするほど（傾斜部分１０１ａ、１０１ｂと被覆層２１の接触面積を大きくするほど）、光ファイバ２０ａの露出部分の長さを大きくすることができる。ただし、刃の傾斜角度が大きすぎると傷２２の傾斜角度は小さくなるため、綺麗な切断面が得られなくなるおそれがある。 The inclination angles of the blades of the blade member 10a shown in FIGS. 3A, 3B, and 3C (angles between the inclined portions 101a and 101b and the surface direction of the blade member 10a) are θ 1 , θ 2 , and θ, respectively. 3 (θ 1 <θ 2 <θ 3 <90 °), and the lengths of the exposed portions of the optical fiber 20a are L 1 , L 2 , and L 3 (L 1 <L 2 <L 3 ), respectively. As shown in FIGS. 3A to 3C, as the inclination angle of the blade of the blade member 10a is increased (the contact area between the inclined portions 101a and 101b and the coating layer 21 is increased), the optical fiber 20a The length of the exposed portion can be increased. However, if the inclination angle of the blade is too large, the inclination angle of the scratch 22 becomes small, so that a clean cut surface may not be obtained.
図４（ａ）〜（ｃ）は、刃部材１０ａの刃が二段階の傾斜を有する場合の、光ファイバ２０を切断する過程を示す水平断面図である。この例では、刃部材１０ａの刃は、刃先を含む第１の部分１４と、第１の部分１４以外の部分である第２の部分１５を有する。ここで、第１の部分１４及び第２の部分１５の傾斜角度は、それぞれθ４、θ５（θ４＜θ５、θ４＜９０°）である。 4A to 4C are horizontal sectional views showing a process of cutting the optical fiber 20 when the blade of the blade member 10a has a two-step inclination. In this example, the blade of the blade member 10 a has a first portion 14 including a cutting edge and a second portion 15 that is a portion other than the first portion 14. Here, the inclination angles of the first portion 14 and the second portion 15 are θ 4 and θ 5 (θ 4 <θ 5 , θ 4 <90 °), respectively.
光ファイバ２０のクラッド２０２の傷２２は第１の部分１４により付けられ、被覆層２１は主に第２の部分１５により除去される。第２の部分１５は傾斜角度が大きいため、光ファイバ２０ａの先端部２０３を大きく露出させることができる。なお、被覆層２１を構成する樹脂は柔らかく、傷が付きやすいため、第２の部分１５の傾斜角度が鈍角であっても除去される。その一方、傾斜角度の小さい第１の部分１４が光ファイバ２０ａのクラッド２０２に傾斜角度の小さい傷２２を付けるため、綺麗な切断面を得ることができる。 The scratches 22 on the cladding 202 of the optical fiber 20 are made by the first portion 14, and the covering layer 21 is mainly removed by the second portion 15. Since the second portion 15 has a large inclination angle, the tip portion 203 of the optical fiber 20a can be exposed greatly. In addition, since resin which comprises the coating layer 21 is soft and easy to be damaged, it is removed even if the inclination angle of the second portion 15 is an obtuse angle. On the other hand, since the first portion 14 with a small inclination angle gives the scratches 22 with a small inclination angle to the clad 202 of the optical fiber 20a, a clean cut surface can be obtained.
〔第２の実施の形態〕
本発明の第２の実施の形態は、刃部材の刃の形状が両刃である点において、第１の実施の形態と異なる。なお、第１の実施の形態と同様の点については、説明を省略又は簡略化する。
[Second Embodiment]
The second embodiment of the present invention differs from the first embodiment in that the shape of the blade of the blade member is a double-edged blade. Note that the description of the same points as in the first embodiment will be omitted or simplified.
（光ファイバ切断装置の構成）
図５（ａ）、（ｂ）は、それぞれ本発明の第２の実施の形態に係る光ファイバ切断装置２の上面図及び正面図である。なお、図５（ａ）の左側を向いた面を光ファイバ切断装置２の正面とする。
(Configuration of optical fiber cutting device)
FIGS. 5A and 5B are a top view and a front view of the optical fiber cutting device 2 according to the second embodiment of the present invention, respectively. In addition, let the surface which faced the left side of Fig.5 (a) be the front of the optical fiber cutting device 2. FIG.
光ファイバ切断装置２は、側部に刃を有する刃部材１５ａ、１５ｂと、刃部材１５ａ、１５ｂをそれぞれ支持する軸１１ａ、１１ｂと、軸１１ａ、１１ｂをそれぞれ支持する支持台１２ａ、１２ｂを有する。 The optical fiber cutting device 2 includes blade members 15a and 15b having blades on the side portions, shafts 11a and 11b that respectively support the blade members 15a and 15b, and support bases 12a and 12b that respectively support the shafts 11a and 11b. .
本実施の形態の刃部材１５ａ、１５ｂの刃の形状は両刃である。すなわち、刃部材１５ａ、１５ｂの刃は、刃部材１５ａ、１５ｂの両面側に傾斜部分１０１ａ、１０１ｂを有する。 The shape of the blades of the blade members 15a and 15b of the present embodiment is a double blade. That is, the blades of the blade members 15a and 15b have inclined portions 101a and 101b on both sides of the blade members 15a and 15b.
（光ファイバの切断方法）
図６（ａ）〜（ｃ）は、光ファイバ切断装置２を用いて光ファイバ２０を切断する過程を示す水平断面図である。図６（ａ）〜（ｃ）は、光ファイバ２０の切断箇所近傍を拡大して示す。
(Optical fiber cutting method)
6A to 6C are horizontal cross-sectional views showing a process of cutting the optical fiber 20 using the optical fiber cutting device 2. 6A to 6C are enlarged views showing the vicinity of the cut portion of the optical fiber 20.
図６（ａ）は、刃部材１５ａと刃部材１５ｂが最も近接した領域を光ファイバ２０が通るときの状態を示す。刃部材１５ａと刃部材１５ｂの間隔Ｄが光ファイバ２０の直径よりも小さいため、刃部材１５ａ、１５ｂの刃の先端が光ファイバ２０に入り込み、クラッド２０２に傷が付く。また、このとき、被覆層２１の刃部材１５ａ、１５ｂの刃の傾斜部分１０１ａ、１０１ｂに触れた部分は除去される。 FIG. 6A shows a state where the optical fiber 20 passes through a region where the blade member 15a and the blade member 15b are closest to each other. Since the distance D between the blade member 15a and the blade member 15b is smaller than the diameter of the optical fiber 20, the tips of the blades of the blade members 15a and 15b enter the optical fiber 20, and the clad 202 is damaged. At this time, the portions of the coating layer 21 that have touched the inclined portions 101a and 101b of the blade members 15a and 15b are removed.
図６（ｂ）は、光ファイバ２０が刃部材１５ａと刃部材１５ｂの間を通った後の状態を示す。光ファイバ２０のクラッド２０２には傷２３が残っている。本実施の形態の刃部材１５ａ、１５ｂの刃の形状は両刃であるため、被覆層２１の傷２３の両側の部分に傷２５が付けられ、が除去される。 FIG. 6B shows a state after the optical fiber 20 passes between the blade member 15a and the blade member 15b. A scratch 23 remains on the clad 202 of the optical fiber 20. Since the shape of the blades of the blade members 15a and 15b of the present embodiment is a double-edged blade, the scratches 25 are made on both sides of the scratch 23 of the coating layer 21 and are removed.
その状態で、光ファイバ２０に長さ方向の引張力を加える、すなわち光ファイバ２０ａを図６（ｂ）の左方向、光ファイバ２０ｂを図６（ｂ）の右方向にそれぞれ引っ張ると、図６（ｃ）に示されるように、光ファイバ２０が傷２３を含む面で切断される。光ファイバ２０を切断することにより得られた光ファイバ２０ａ、２０ｂは、いずれも先端２０３が被覆層２１に付けられた傷２５のために被覆層２１から露出している。 In this state, when a tensile force in the length direction is applied to the optical fiber 20, that is, when the optical fiber 20a is pulled in the left direction in FIG. 6B and the optical fiber 20b is pulled in the right direction in FIG. As shown in (c), the optical fiber 20 is cut at the surface including the scratch 23. The optical fibers 20 a and 20 b obtained by cutting the optical fiber 20 are both exposed from the coating layer 21 due to the scratch 25 having the tip 203 attached to the coating layer 21.
〔第３の実施の形態〕
本発明の第３の実施の形態は、刃部材の他に、被覆層を剥くための剥離用部材を用いる点において、第１の実施の形態と異なる。なお、第１の実施の形態と同様の点については、説明を省略又は簡略化する。
[Third Embodiment]
The third embodiment of the present invention is different from the first embodiment in that, in addition to the blade member, a peeling member for peeling the coating layer is used. Note that the description of the same points as in the first embodiment will be omitted or simplified.
（光ファイバ切断装置の構成）
図７（ａ）、（ｂ）は、それぞれ本発明の第３の実施の形態に係る光ファイバ切断装置３の上面図及び正面図である。なお、図７（ａ）の左側を向いた面を光ファイバ切断装置３の正面とする。
(Configuration of optical fiber cutting device)
7A and 7B are a top view and a front view of an optical fiber cutting device 3 according to a third embodiment of the present invention, respectively. In addition, let the surface which faced the left side of Fig.7 (a) be the front of the optical fiber cutting device 3. FIG.
光ファイバ切断装置３は、側部に刃を有する円板状の刃部材１６ａ、１６ｂと、刃部材１６ａ、１６ｂの厚さ方向にそれぞれ刃部材１６ａ、１６ｂと重ねて設けられた剥離用部材１７ａ、１７ｂと、刃部材１６ａ及び剥離用部材１７ａを支持する軸１１ａと、刃部材１６ｂ及び剥離用部材１７ｂを支持する軸１１ｂと、軸１１ａ、１１ｂをそれぞれ支持する支持台１２ａ、１２ｂを有する。 The optical fiber cutting device 3 includes disc-shaped blade members 16a and 16b each having a blade on the side, and a peeling member 17a provided to overlap the blade members 16a and 16b in the thickness direction of the blade members 16a and 16b, respectively. 17b, a shaft 11a that supports the blade member 16a and the peeling member 17a, a shaft 11b that supports the blade member 16b and the peeling member 17b, and support bases 12a and 12b that support the shafts 11a and 11b, respectively.
剥離用部材１７ａ、１７ｂは、互いに対向する側面に傾斜を有しない部材であり、ポリエーテルイミド、ポリカーボネート等の樹脂材料からなる。剥離用部材１７ａ、１７ｂは、刃部材１６ａ、１６ｂが光ファイバに傷２２を付ける際にその側面に接触する被覆層２１を除去するが、光ファイバ２０に傷を付けない。また、剥離用部材１７ａ、１７ｂは、回転しないように固定されていることが好ましい。剥離用部材１７ａ、１７ｂは、例えば、図７（ａ）、（ｂ）に示されるように円板状の形状を有するが、他の形状を有してもよい。 The peeling members 17a and 17b are members having no inclination on the side surfaces facing each other, and are made of a resin material such as polyetherimide or polycarbonate. The peeling members 17a and 17b remove the coating layer 21 that contacts the side surfaces of the blade members 16a and 16b when the blade members 16a and 16b damage the optical fiber, but do not damage the optical fiber 20. The peeling members 17a and 17b are preferably fixed so as not to rotate. The peeling members 17a and 17b have, for example, a disk shape as shown in FIGS. 7A and 7B, but may have other shapes.
（光ファイバの切断方法）
図８（ａ）〜（ｃ）は、光ファイバ切断装置３を用いて光ファイバ２０を切断する過程を示す水平断面図である。図８（ａ）〜（ｃ）は、光ファイバ２０の切断箇所近傍を拡大して示す。
(Optical fiber cutting method)
FIGS. 8A to 8C are horizontal sectional views showing a process of cutting the optical fiber 20 using the optical fiber cutting device 3. 8A to 8C are enlarged views showing the vicinity of the cut portion of the optical fiber 20.
剥離用部材１７ａと剥離用部材１７ｂの距離は、切断する光ファイバ２０の直径とほぼ同じになるように調節される。 The distance between the peeling member 17a and the peeling member 17b is adjusted to be substantially the same as the diameter of the optical fiber 20 to be cut.
図８（ａ）は、刃部材１０ａと刃部材１０ｂが最も近接した領域を光ファイバ２０が通るときの状態を示す。このとき、刃部材１０ａと刃部材１０ｂの刃の先端が光ファイバ２０に入り込み、クラッド２０２に傷が付く。また、このとき、被覆層２１の刃部材１０ａ、１０ｂの刃の傾斜部分１０１ａ、１０１ｂ及び剥離用部材１７ａ、１７ｂの側面１７１ａ、１７１ｂに触れた部分は除去される。 FIG. 8A shows a state where the optical fiber 20 passes through a region where the blade member 10a and the blade member 10b are closest to each other. At this time, the blade tips of the blade member 10a and the blade member 10b enter the optical fiber 20, and the clad 202 is damaged. At this time, the portions of the coating layer 21 that touch the inclined portions 101a and 101b of the blade members 10a and 10b and the side surfaces 171a and 171b of the peeling members 17a and 17b are removed.
図８（ｂ）は、光ファイバ２０が刃部材１０ａと刃部材１０ｂの間を通った後の状態を示す。光ファイバ２０のクラッド２０２には傷２２が残っている。光ファイバ２０ａ側の被覆層２１の傷２２の近傍の部分は、刃部材１０ａ、１０ｂの刃の傾斜部分１０１ａ、１０１ｂ及び剥離用部材１７ａ、１７ｂにより傷２６が付けられ、除去されている。 FIG. 8B shows a state after the optical fiber 20 passes between the blade member 10a and the blade member 10b. Scratches 22 remain in the cladding 202 of the optical fiber 20. In the vicinity of the flaw 22 of the coating layer 21 on the optical fiber 20a side, the flaw 26 is attached and removed by the inclined portions 101a, 101b and the peeling members 17a, 17b of the blade members 10a, 10b.
その状態で、光ファイバ２０に長さ方向の引張力を加える、すなわち光ファイバ２０ａを図８（ｂ）の左方向、光ファイバ２０ｂを図８（ｂ）の右方向にそれぞれ引っ張ると、図８（ｃ）に示されるように、光ファイバ２０が傷２２を含む面で切断される。 In this state, when a tensile force in the length direction is applied to the optical fiber 20, that is, when the optical fiber 20a is pulled in the left direction in FIG. 8B and the optical fiber 20b is pulled in the right direction in FIG. As shown in (c), the optical fiber 20 is cut at the surface including the scratch 22.
本実施の形態においては、被覆層２１を除去するために剥離用部材１７ａ、１７ｂを用いるため、第１の実施の形態よりも光ファイバ２０ａの露出部分の長さが大きい。 In the present embodiment, the stripping members 17a and 17b are used to remove the covering layer 21, so that the length of the exposed portion of the optical fiber 20a is larger than that of the first embodiment.
（実施の形態の効果）
本発明の実施の形態によれば、光ファイバのクラッド２０２に傷を付けるのと同時に傷の近傍の被覆層を除去するため、切断後の被覆層を剥離する工程を必要としない。そのため、先端が被覆層から露出した光ファイバの加工を簡便に行うことができる。
(Effect of embodiment)
According to the embodiment of the present invention, since the coating layer in the vicinity of the scratch is removed at the same time as scratching the clad 202 of the optical fiber, a step of peeling the coating layer after cutting is not required. Therefore, it is possible to easily process the optical fiber whose tip is exposed from the coating layer.
なお、本発明は、上記実施の形態に限定されず、発明の主旨を逸脱しない範囲内において種々変形実施が可能である。また、発明の主旨を逸脱しない範囲内において上記実施の形態の構成要素を任意に組み合わせることができる。 The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention. In addition, the constituent elements of the above-described embodiment can be arbitrarily combined without departing from the spirit of the invention.
本実施例では、上述した第２の実施の形態の光ファイバ切断装置２を用いて光ファイバ２０を切断した。本実施例の光ファイバ２０の直径及び被覆層２１の外径は、それぞれ１２５μｍ、２５０μｍである。また、切断された光ファイバ２０の被覆層２１から露出した部分の長さは、約４０μｍである。 In this example, the optical fiber 20 was cut using the optical fiber cutting device 2 of the second embodiment described above. The diameter of the optical fiber 20 and the outer diameter of the coating layer 21 in this embodiment are 125 μm and 250 μm, respectively. Moreover, the length of the part exposed from the coating layer 21 of the cut optical fiber 20 is about 40 μm.
図９（ａ）、（ｂ）は、刃部材１５ａと刃部材１５ｂの間隔を１２２〜１２４μｍに設定して切断した光ファイバ２０及び被覆層２１の端面写真および側面写真である。傷２３の深さは、０．５〜３μｍの範囲にある。図９（ａ）、（ｂ）は、光ファイバ２０の凹凸の少ない綺麗な切断面を示している。 FIGS. 9A and 9B are an end face photograph and a side face photograph of the optical fiber 20 and the coating layer 21 cut with the interval between the blade member 15a and the blade member 15b set to 122 to 124 μm. The depth of the scratch 23 is in the range of 0.5 to 3 μm. FIGS. 9A and 9B show a clean cut surface with few irregularities of the optical fiber 20.
図９（ｃ）は、刃部材１５ａと刃部材１５ｂの間隔を１００μｍに設定して切断した光ファイバ２０及び被覆層２１の端面写真である。図９（ｃ）に示される光ファイバ２０の切断面は凹凸が多い。これは、刃部材１５ａと刃部材１５ｂの間隔が光ファイバ２０の直径に対して小さすぎるため、傷２３の深さが深くなりすぎたことによると考えられる。 FIG. 9C is a photograph of end surfaces of the optical fiber 20 and the coating layer 21 cut with the interval between the blade member 15a and the blade member 15b set to 100 μm. The cut surface of the optical fiber 20 shown in FIG. This is presumably because the distance between the blade member 15a and the blade member 15b is too small with respect to the diameter of the optical fiber 20, so that the depth of the scratch 23 becomes too deep.
以上、本発明の実施の形態及び実施例を説明したが、上記に記載した実施の形態及び実施例は特許請求の範囲に係る発明を限定するものではない。また、実施の形態及び実施例の中で説明した特徴の組合せの全てが発明の課題を解決するための手段に必須であるとは限らない点に留意すべきである。 While the embodiments and examples of the present invention have been described above, the embodiments and examples described above do not limit the invention according to the claims. It should be noted that not all combinations of features described in the embodiments and examples are necessarily essential to the means for solving the problems of the invention.
１、２、３ 光ファイバ切断装置
１０ａ、１０ｂ、１５ａ、１５ｂ 刃部材
１４ 第１の部分
１５ 第２の部分
２０、２０ａ、２０ｂ 光ファイバ
２１ 被覆層
２２、２３ 傷
２０１ コア
２０２ クラッド
２０３ 先端
1, 2, 3 Optical fiber cutting device 10a, 10b, 15a, 15b Blade member 14 First part 15 Second part 20, 20a, 20b Optical fiber 21 Coating layer 22, 23 Scratch 201 Core 202 Clad 203 Tip
Claims (12)
前記光ファイバにその長さ方向の引張力を加え、前記傷を含む面を切断面として前記光ファイバを切断することにより、少なくとも一方の先端が前記被覆層から露出した２つの被加工光ファイバを得る工程と、
を含む、光ファイバ切断方法。 Each of the first blade member and the second blade member between the first blade member and the second blade member, each of which has a blade on the side, and is spaced so that the blades face each other. Scratching the clad of the optical fiber covered with the coating layer with the blade of the two blade members and removing the coating layer in the vicinity of the scratch; and
By applying a tensile force in the length direction to the optical fiber, and cutting the optical fiber with the surface including the scratch as a cut surface, two processed optical fibers having at least one tip exposed from the coating layer are obtained. Obtaining a step;
An optical fiber cutting method.
請求項１に記載の光ファイバ切断方法。 The depth of the scratch is 0.5-3 μm,
The optical fiber cutting method according to claim 1.
請求項１又は２に記載の光ファイバ切断方法。 Rotating the optical fiber between the first blade member and the second blade member to scratch the entire circumference of the clad,
The optical fiber cutting method according to claim 1 or 2.
請求項１〜３のいずれか１項に記載の光ファイバ切断方法。 Adjusting the length of the portion of the optical fiber to be processed exposed from the coating layer by changing the inclination angle of the blade of the first blade member and the second blade member;
The optical fiber cutting method according to claim 1.
前記２つの被加工光ファイバの両方の先端を前記被覆層から露出させる、
請求項１〜４のいずれか１項に記載の光ファイバ切断方法。 The shape of the blades of the first blade member and the second blade member is a double blade,
Exposing the tips of both of the two work optical fibers from the coating layer;
The optical fiber cutting method according to any one of claims 1 to 4.
前記クラッドの前記傷は前記第１の部分により付けられ、
前記被覆層は主に前記第２の部分により除去される、
請求項１〜５のいずれか１項に記載の光ファイバ切断方法。 The blades of the first blade member and the second blade member have a first portion including a cutting edge and an inclination angle with respect to a surface direction of the first blade member and the second blade member. Having a second part larger than the part,
The scratch of the cladding is made by the first portion;
The covering layer is removed mainly by the second portion;
The optical fiber cutting method according to any one of claims 1 to 5.
請求項１〜６のいずれか１項に記載の光ファイバ切断方法。 The optical fiber is passed between the first blade member and the second blade member, and the first blade member and the second blade member in the thickness direction of the first blade member and the second blade member, respectively. The coating layer is further removed using a first peeling member and a second peeling member that are provided so as to overlap with the two blade members and have no inclination on the side surfaces facing each other.
The optical fiber cutting method according to any one of claims 1 to 6.
前記第１の刃部材と前記第２の刃部材の間で、前記第１の刃部材及び前記第２の刃部材の刃により、被覆層に覆われた光ファイバのクラッドに前記光ファイバを切断するための傷を付けることができる、
光ファイバ切断装置。 Each has a blade on the side, and has a first blade member and a second blade member that are spaced apart so that the blades face each other,
Between the first blade member and the second blade member, the optical fiber is cut into the clad of the optical fiber covered with the coating layer by the blades of the first blade member and the second blade member Can be scratched,
Optical fiber cutting device.
請求項８に記載の光ファイバ切断装置。 The shape of the blades of the first blade member and the second blade member is a double blade,
The optical fiber cutting device according to claim 8.
請求項８又は９に記載の光ファイバ切断装置。 The blades of the first blade member and the second blade member have a first portion including a cutting edge and an inclination angle with respect to a surface direction of the first blade member and the second blade member. Having a second part larger than the part,
The optical fiber cutting device according to claim 8 or 9.
前記第１の剥離用部材及び前記第２の剥離用部材は、前記光ファイバを前記第１の刃部材と前記第２の刃部材の間に通すことにより、前記被覆層の接触した部分近傍を剥離することができる、
請求項８〜１０のいずれか１項に記載の光ファイバ切断装置。 The first blade member and the second blade member, which are provided to overlap the first blade member and the second blade member in the thickness direction of the first blade member and the second blade member, respectively, are not inclined on the side surfaces facing each other. And further having a peeling member and a second peeling member,
The first peeling member and the second peeling member pass through the optical fiber between the first blade member and the second blade member, so that the vicinity of the contacted portion of the coating layer is obtained. Can be peeled,
The optical fiber cutting device according to any one of claims 8 to 10.
請求項８〜１１のいずれか１項に記載の光ファイバ切断装置。 The first blade member and the second blade member have a disk shape, and at least one of them is fixed so as not to rotate.
The optical fiber cutting device according to any one of claims 8 to 11.
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| CN107610583A (en) * | 2017-11-03 | 2018-01-19 | 海盐县三禾印刷有限公司 | A kind of multi-functional clothes woven label |
| JP2020145847A (en) * | 2019-03-06 | 2020-09-10 | 日立金属株式会社 | Cable processing device and cable processing method |
| CN112526676A (en) * | 2020-12-04 | 2021-03-19 | 张艺帆 | Optical fiber sound wave communication method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107450128A (en) * | 2017-07-27 | 2017-12-08 | 邹辉 | A kind of optical fiber cleaver and cutting method |
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| JP2020145847A (en) * | 2019-03-06 | 2020-09-10 | 日立金属株式会社 | Cable processing device and cable processing method |
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| CN112526676A (en) * | 2020-12-04 | 2021-03-19 | 张艺帆 | Optical fiber sound wave communication method and device |
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