JPH0449084B2 - - Google Patents
Info
- Publication number
- JPH0449084B2 JPH0449084B2 JP59177990A JP17799084A JPH0449084B2 JP H0449084 B2 JPH0449084 B2 JP H0449084B2 JP 59177990 A JP59177990 A JP 59177990A JP 17799084 A JP17799084 A JP 17799084A JP H0449084 B2 JPH0449084 B2 JP H0449084B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical fiber
- optical branching
- coupling
- branching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 claims description 58
- 230000003287 optical effect Effects 0.000 claims description 53
- 230000008878 coupling Effects 0.000 claims description 50
- 238000010168 coupling process Methods 0.000 claims description 50
- 238000005859 coupling reaction Methods 0.000 claims description 50
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 15
- 230000004927 fusion Effects 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000007526 fusion splicing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光通信部門において用いられる光フア
イバの光分岐結合部の製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for manufacturing an optical branching/coupling section of an optical fiber used in the optical communications sector.
従来のこの種の光分岐結合部を製造する方法と
して、第２図に示したように、複数本の光フアイ
バ１，２を互いに平行に並べて接触させ（第２図
ａ）、この接触部を放電に曝すなどして加熱融着
させて光分岐結合部３を形成する方法が知られて
いる（第２図ｂ）。又この光分岐結合部を中間で
切断しこの切断面を光分岐結合すべき別の光フア
イバ４の端面に突き合わせて融着接続して光分岐
結合部５を得る（第２図ｃ）場合もある。このよ
うにして製造された光分岐結合部の場合、加熱融
着により光フアイバの引張り強度が低下する。一
方完成した光分岐結合部の引張り荷重と断線確率
との関係について、第３図に示したように実験結
果が得られた。
As shown in FIG. 2, the conventional method for manufacturing this type of optical branching/coupling unit is to arrange a plurality of optical fibers 1 and 2 parallel to each other and contact them (FIG. 2a), and to form this contact portion. A method is known in which the optical branching and coupling portion 3 is formed by heating and fusing the material by exposing it to electric discharge or the like (FIG. 2b). Alternatively, the optical branching/coupling part 5 may be obtained by cutting this optical branching/coupling part in the middle and abutting this cut surface against the end face of another optical fiber 4 to be optically branched/coupling and fusion splicing it (FIG. 2c). be. In the case of the optical splitting/coupling unit manufactured in this manner, the tensile strength of the optical fiber is reduced due to heat fusion. On the other hand, experimental results as shown in FIG. 3 were obtained regarding the relationship between the tensile load and disconnection probability of the completed optical branching and coupling section.
また光フアイバの光分岐結合部は、たとえば第
２図ｂのそれを例にあげて第４図に示したよう
に、スリーブ状固定部材７とこの固定部材７と光
分岐結合部６との間に充填された固定用樹脂８と
によつて固定される。固定後の使用状態において
光分岐結合部６には、固定部７、固定用樹脂８お
よび光分岐結合部６の間における熱膨張と弾性歪
の差により内部応力による引張荷重がかかる。 Further, the optical branching/coupling part of the optical fiber is formed between the sleeve-shaped fixing member 7 and the optical branching/coupling part 6, as shown in FIG. It is fixed by the fixing resin 8 filled with the fixing resin 8. In the use state after fixation, the optical branching and coupling part 6 is subjected to a tensile load due to internal stress due to the difference in thermal expansion and elastic strain between the fixing part 7, the fixing resin 8, and the optical branching and coupling part 6.
このことを詳しく説明すると、各部の伸びは熱
膨張による伸びと内部応力による伸びの和であり
一定であるから、次式が成り立つ。 To explain this in detail, since the elongation of each part is the sum of the elongation due to thermal expansion and the elongation due to internal stress and is constant, the following equation holds true.
lεfΔT＋Pfｌ／EfSf＝lεgΔT＋Pgｌ／EgSg＝
lεeΔT＋Peｌ／EeSe ……(1)
ただし光分岐結合部６の断面積は一定とする。
ここでｌは固定部材の全長、ΔTは使用時に生ず
る温度差、εは線膨張率、Ｅはヤング率、Ｓは断
面積、Ｐは内部応力による荷重で、添字のfは光
分岐結合部６、gは固定部材７、eは固定用樹脂をそ
れぞれ示している。lε f ΔT+P f l/E f S f = lε g ΔT+P g l/E g S g = lε e ΔT+P e l/E e S e ...(1) However, the cross-sectional area of the optical branching/coupling section 6 is constant. .
Here, l is the total length of the fixing member, ΔT is the temperature difference that occurs during use, ε is the coefficient of linear expansion, E is Young's modulus, S is the cross-sectional area, P is the load due to internal stress, and the subscript f is the optical branching and coupling part 6. , g indicates the fixing member 7, and e indicates the fixing resin.
また内部応力の総和は０となることから次式が
成り立つ。 Furthermore, since the sum of internal stresses is 0, the following equation holds true.
Pf＋Pg＋Pe＝０ ……(2)
いま式(1)と式(2)から光分岐結合部６にかかる内
部応力による荷重Pfを求めると、
Pf＝ΔTEgSf｛EgSg（εg−εf）＋EeSe（εg
−εf）｝／EfSf＋EgSg＋EeSe……(3)
となる。いま各値を
Ef＝7.5×103Kg／mm2、εf＝４×10-7deg-1、Sf＝
2.5×10-2mm2、Eg＝6.0×103Kg／mm2、εg＝９×
10-6deg-1、Sg＝4.1×10-1mm2、Ee＝3.5×103Kg／
mm2、εe＝５×10-5deg-1、Se＝7.1×10-2mm2、ΔT＝
80deg
とすると、
Pf＝125g
となる。第３図に照らしてみると、この荷重では
約30％の光分岐結合部が断線してしまうことにな
る。従つて少なくともこの荷重に耐えうる光分岐
結合部を供給する必要がある。 P f +P g +P e =0...(2) Now, if we calculate the load P f due to the internal stress applied to the optical branching/coupling part 6 from equations (1) and (2), we get P f =ΔTE g S f {E g S g (ε g −ε f )＋E e S e (ε g
−ε f )}/E f S f +E g S g +E e S e ……(3). Now, let each value be E f =7.5×10 3 Kg/mm 2 , ε f =4×10 -7 deg -1 , S f =
2.5×10 -2 mm 2 , E g =6.0×10 3 Kg/mm 2 , ε g =9×
10 -6 deg -1 , S g =4.1×10 -1 mm 2 , E e =3.5×10 3 Kg/
mm 2 , ε e =5×10 -5 deg -1 , S e =7.1×10 -2 mm 2 , ΔT=
If it is 80deg, P f =125g. In light of Fig. 3, approximately 30% of the optical branch connections will break under this load. Therefore, it is necessary to provide an optical branching/coupling section that can withstand at least this load.
しかしながら、従来の光分岐結合部の製造装置
は、加熱融着を行う装置と強度試験を行う装置と
が別々であり、そのため、所定の強度を有する光
分岐結合部の製造に、多大の時間を要するという
問題点があつた。 However, in the conventional manufacturing equipment for optical branching and coupling parts, the equipment that performs heat fusion and the equipment that performs strength tests are separate, and therefore it takes a lot of time to manufacture optical branching and coupling parts that have a predetermined strength. There was a problem that it was necessary.
一方、他の問題点として、従来の製造装置で
は、加熱融着の際、光フアイバの素線部を保持し
ているため、融着時に素線フアイバに力が加わり
すぎ、光フアイバが破断し易いという恐れがあつ
た。 On the other hand, another problem is that conventional manufacturing equipment holds the strands of the optical fiber during heat fusing, so too much force is applied to the strands during fusing, causing the optical fiber to break. I was afraid it would be easy.
本発明の目的は、融着時に光フアイバを破断す
ることがなく、かつ融着装置と試験装置とを一体
化し、オンラインにて、強度低下の著しい光分岐
結合部をその製造段階で選別除去し、固定部材と
の固定の際にも断線する恐れのない光分岐結合部
を製造可能な製造装置を提供することにある。
The purpose of the present invention is to eliminate the possibility of breaking the optical fiber during fusion, integrate a fusion device and a testing device, and screen out and remove optical branching and coupling portions with a significant decrease in strength on-line at the manufacturing stage. Another object of the present invention is to provide a manufacturing apparatus capable of manufacturing an optical branching/coupling part without the risk of disconnection even when it is fixed to a fixing member.
〔課題を解決するための手段〕
本発明によればこの目的は、複数本の光フアイ
バを互いに平行に並べてその素線部を接触させ、
この接触部を移動させながら加熱融着し光分岐結
合部を形成した後、該光分岐結合部に所定の大き
さの引張荷重を印加して強度試験を行う光分岐結
合部の製造装置であつて、駆動モータを備えた光
フアイバ移動手段である光フアイバ移動ステージ
上に設置され、前記光フアイバの少なくとも加熱
融着時に前記光フアイバの心線部を前記接触部の
両側で保持する二個の心線クランプと、放電電源
に接続され前記光フアイバの接触部を加熱融着す
る放電電極と、前記光フアイバの強度試験時に前
記光フアイバの素線部を前記接触部の両側でかつ
前記心線クランプより接触部側で保持する二個の
素線クランプと、該素線クランプの一方の素線ク
ランプに取り付けられた引張荷重測定器と、前記
駆動モータ、前記放電電源、前記引張荷重測定器
をそれぞれ制御する制御回路とを備えた光分岐結
合部の製造装置によつて達成される。[Means for Solving the Problem] According to the present invention, this object is achieved by arranging a plurality of optical fibers parallel to each other and bringing their strands into contact with each other,
The optical branching and coupling part manufacturing apparatus performs a strength test by applying a tensile load of a predetermined magnitude to the optical branching and coupling part after forming an optical branching and coupling part by heating and fusing the contact part while moving the contact part. the optical fiber moving means, which is an optical fiber moving means equipped with a drive motor; A wire clamp, a discharge electrode that is connected to a discharge power source and heat-fuses the contact portion of the optical fiber, and a wire portion of the optical fiber on both sides of the contact portion and the core wire during a strength test of the optical fiber. two wire clamps held on the contact side side of the clamps, a tensile load measuring device attached to one of the wire clamps, the drive motor, the discharge power source, and the tensile load measuring device. This is achieved by an apparatus for manufacturing an optical branching/coupling unit, which is equipped with a control circuit for controlling each of these parts.
次に第１図に示す実施例に基づいて本発明を詳
細に説明する。
Next, the present invention will be explained in detail based on the embodiment shown in FIG.
第１図における本発明の光分岐結合部の製造装
置において、２本の光フアイバ１１，１２の心線
部（コア、クラツドの上にビニール等を被覆した
部分）は光フアイバ移動手段である光フアイバ移
動ステージ１３，１４の上にある心線クランプ１
５，１６によつて保持され、光フアイバ１１，１
２の素線部（コア、クラツドの上に何も被覆して
いない部分）は光フアイバ移動ステージ１３，１
４の移動に伴つて互いに接触を保つたまま移動で
きるように固定ステージ１７で案内される。光フ
アイバ１１，１２の素線部は、強度試験時には、
更に光フアイバ移動ステージ１４にある素線クラ
ンプ１８と引張り荷重測定用の素線クランプ１９
とで保持できるようになつている。この素線クラ
ンプ１９には引張り荷重測定器２０が取り付けら
れている。２１，２２はそれぞれ光フアイバ移動
ステージ１３，１４を左右に移動動作する駆動モ
ータである。固定ステージ１７の中央には光フア
イバ１１，１２の素線部の相互接触部を放電によ
つて加熱融着する一対の放電電極２３，２４が配
置されている。これらの電極２３，２４は放電電
源２５に接続されている。制御回路２６は移動ス
テージ用駆動モータ２１，２２、放電電源２５、
引張り荷重測定器２０および入出力回路２７に接
続されている。入出力回路２７から入力されるデ
ータによつて、光フアイバ移動ステージ１３，１
４および放電電極２３，２４放電電源２５が制御
される。すなわち光フアイバ移動ステージ１３，
１４の移動速度、移動距離、移動方向、放電開示
時期、放電電流および放電時間が、所望の分岐特
性の光分岐結合部（第２図ｂ参照）を得るように
制御される。加熱融着時には、光フアイバ１１，
１２の心線部を保持しているので、移動ステージ
１３，１４の移動に伴つて、光フアイバ１１，１
２が破断することはない。 In the optical branching/coupling unit manufacturing apparatus of the present invention shown in FIG. Wire clamp 1 on fiber moving stages 13 and 14
5, 16, and optical fibers 11, 1
The strand part of No. 2 (the part where nothing is coated on the core and cladding) is on the optical fiber moving stage 13, 1.
4 is guided by a fixed stage 17 so as to be able to move while maintaining contact with each other. During the strength test, the strands of the optical fibers 11 and 12 are
Furthermore, a wire clamp 18 and a wire clamp 19 for tensile load measurement are provided on the optical fiber moving stage 14.
It is designed so that it can be held with A tensile load measuring device 20 is attached to this wire clamp 19 . Reference numerals 21 and 22 are drive motors that move the optical fiber moving stages 13 and 14 left and right, respectively. A pair of discharge electrodes 23 and 24 are arranged at the center of the fixed stage 17 to heat and fuse the mutually contacting parts of the strands of the optical fibers 11 and 12 by electric discharge. These electrodes 23 and 24 are connected to a discharge power source 25. The control circuit 26 includes movable stage drive motors 21 and 22, a discharge power source 25,
It is connected to the tensile load measuring device 20 and the input/output circuit 27. The data input from the input/output circuit 27 causes the optical fiber moving stage 13,1 to
4, discharge electrodes 23, 24, and discharge power source 25 are controlled. That is, the optical fiber moving stage 13,
The moving speed, moving distance, moving direction, discharge start time, discharge current, and discharge time of 14 are controlled to obtain an optical branching and coupling part (see FIG. 2b) with desired branching characteristics. During heat fusion, the optical fiber 11,
Since the optical fibers 11 and 12 are held, as the moving stages 13 and 14 move, the optical fibers 11 and 1
2 will not break.
この光分岐結合部３の形成後、即ち加熱融着終
了後において、本発明に基づいて左右の素線クラ
ンプ１８，１９で光フアイバ１１，１２の素線部
を保持し、光フアイバ移動ステージ１４を左に移
動させると、光分岐結合部３に引張荷重がかか
る。なお、本実施例においては、この強度試験時
においても、光フアイバ１１，１２の心線部は心
線クランプ１５，１６によつて保持したままにし
てある。高度試験時に、光フアイバ１１，１２
を、その素線部を素線クランプ１８，１９により
保持するのは、心線部をクランプしただけでは、
光フアイバのクラツド部とその上に被覆したビニ
ールとが引張荷重によりすべり、光フアイバに印
加される正確な荷重を検知できないことがあるた
めである。引張荷重測定器２０の出力が所定の値
に達するまで制御回路２６によつて光フアイバ移
動ステージ１４を移動させると、加熱融着時の強
度低下が著しかつたものはこの強度試験の際に断
線してしまい、使用不可であることがわかり、断
線しなかつたものは使用可能であると判断でき
る。光分岐結合部にかける引張荷重は、例えば光
分岐結合部の固定部の固定時において光分岐結合
に生ずる内部応力による引張荷重より僅かに大き
い荷重が選ばれる。 After the optical branching and coupling portion 3 is formed, that is, after the heating and fusing is completed, the strands of the optical fibers 11 and 12 are held by the left and right strand clamps 18 and 19 based on the present invention, and the optical fiber moving stage 14 When moved to the left, a tensile load is applied to the optical branching/coupling section 3. In this embodiment, the core portions of the optical fibers 11 and 12 are kept held by the core clamps 15 and 16 even during this strength test. During the altitude test, optical fibers 11 and 12
To hold the strands of wire with the strands of wire clamps 18 and 19, it is impossible to hold the strands of wire by just clamping the core wires.
This is because the clad portion of the optical fiber and the vinyl coated thereon may slip due to the tensile load, making it impossible to accurately detect the load applied to the optical fiber. When the optical fiber moving stage 14 is moved by the control circuit 26 until the output of the tensile load measuring device 20 reaches a predetermined value, fibers with a significant decrease in strength during heat fusion will be evaluated during this strength test. It can be determined that the wire is broken and cannot be used, and the wire that is not broken can be determined to be usable. The tensile load applied to the optical branching and coupling part is selected to be slightly larger than the tensile load due to the internal stress generated in the optical branching and coupling, for example, when the fixing part of the optical branching and coupling part is fixed.
なお上述の実施例において２本の光フアイバを
加熱融着する例について説明したが、勿論３本以
上でも可能であり、また加熱融着手段も放電のほ
かにレーザやガストーチなども考えられる。 In the above-described embodiment, an example was explained in which two optical fibers are heat-fused, but it is of course possible to use three or more optical fibers, and the heat-fusion means may be a laser, a gas torch, or the like in addition to electric discharge.
本発明によれば、複数本の光フアイバを互いに
平行に並べてその素線部を接触させ、この接触部
を移動させながら加熱融着し光分岐結合部を形成
した後、該光分岐結合部に所定の大きさの引張荷
重を印加して強度試験を行う光分岐結合部の製造
装置を、駆動モータを備えた光フアイバ移動手段
である光フアイバ移動ステージ上に設置され、前
記光フアイバの少なくとも加熱融着時に前記光フ
アイバの心線部を前記接触部の両側で保持する二
個の心線クランプと、放電電源に接続され前記光
フアイバの接触部を加熱融着する放電電極と、前
記光フアイバの強度試験時に前記光フアイバの素
線部を前記接触部の両側でかつ前記心線クランプ
より接触部側で保持する二個の素線クランプと、
該素線クランプの一方の素線クランプに取り付け
られた引張荷重測定器と、前記移動モータ、前記
放電電源、前記引張荷重測定器をそれぞれ制御す
る制御回路とを備えたものとしたので、下記の効
果を奏する。
According to the present invention, a plurality of optical fibers are arranged parallel to each other, their strands are brought into contact with each other, and the contact portions are heated and fused while moving to form an optical branching/coupling portion. An optical branching/coupling manufacturing device that performs a strength test by applying a tensile load of a predetermined magnitude is installed on an optical fiber moving stage that is an optical fiber moving means equipped with a drive motor, and the optical fiber is heated at least. two core clamps that hold the core portion of the optical fiber on both sides of the contact portion during fusion; a discharge electrode that is connected to a discharge power source and heat-fuses the contact portion of the optical fiber; two strand clamps that hold the strand part of the optical fiber on both sides of the contact part and closer to the contact part than the core wire clamp during the strength test;
The wire clamp is equipped with a tensile load measuring device attached to one of the wire clamps, and a control circuit that controls the moving motor, the discharge power source, and the tensile load measuring device, respectively. be effective.
() 光分岐結合部の製造段階において光分岐結
合部の引張強度試験が行われ、強度が著しく低
下してしまつたものは除去され、十分な強度を
もつたものだけが使用可能として供給されるの
で、固定時や使用時において断線事故を生ずる
ことはなくなる。() Tensile strength tests are conducted on optical branching and coupling parts at the manufacturing stage of the optical branching and coupling parts, and those whose strength has significantly decreased are removed, and only those with sufficient strength are supplied as usable. Therefore, disconnection accidents will not occur during fixation or use.
() 光フアイバを加熱融着し光分岐結合部を製
造する装置と該光分岐結合部の強度試験を行う
装置とを一体化し、オンラインで加熱融着工程
と強度試験工程とを実施可能としたので、製造
全体に要する時間が著しく短縮される。() A device that heat-fuses optical fibers to manufacture an optical branching and coupling part and a device that tests the strength of the optical branching and coupling part are integrated, making it possible to perform the heat-fusion process and the strength testing process online. Therefore, the overall manufacturing time is significantly reduced.
() 加熱融着工程時には、光フアイバの心線部
を保持するようにしたので、該工程において光
フアイバが破断することを防止できる。() Since the core portion of the optical fiber is held during the heating and fusing process, it is possible to prevent the optical fiber from breaking during the process.
第１図は本発明になる光分岐結合部の製造装置
の一実施例の構成配置図、第２図は光分岐結合部
の製造過程を示す説明図、第３図は形成された光
分岐結合部の引張荷重と断線確率との関係を示す
図、第４図は光分岐結合部の固定構造の一例を示
す断面図である。
１，２……光フアイバ、３……光分岐結合部、
５……光分岐結合部、６……光フアイバ、７……
固定部材、８……固定用樹脂、１１，１２……光
フアイバ、１３，１４……光フアイバ移動ステー
ジ、１５，１６……光フアイバの心線クランプ、
１７……固定ステージ、１８，１９……光フアイ
バの素線クランプ、２０……引張荷重測定器、２
１，２２……駆動モータ、２３，２４……放電電
極、２５……放電電源、２６……制御回路、２７
……入出力回路。
Fig. 1 is a configuration diagram of an embodiment of the optical branching/coupling unit manufacturing device according to the present invention, Fig. 2 is an explanatory diagram showing the manufacturing process of the optical branching/coupling unit, and Fig. 3 is a formed optical branching/coupling unit. FIG. 4 is a cross-sectional view showing an example of the fixing structure of the optical branching/coupling section. 1, 2... Optical fiber, 3... Optical branching and coupling section,
5... Optical branching/coupling unit, 6... Optical fiber, 7...
Fixing member, 8... Fixing resin, 11, 12... Optical fiber, 13, 14... Optical fiber moving stage, 15, 16... Optical fiber core clamp,
17... Fixed stage, 18, 19... Optical fiber strand clamp, 20... Tensile load measuring device, 2
1, 22... Drive motor, 23, 24... Discharge electrode, 25... Discharge power supply, 26... Control circuit, 27
...Input/output circuit.
Claims (1)
の素線部を接触させ、この接触部を移動させなが
ら加熱融着し光分岐結合部を形成した後、該光分
岐結合部に所定の大きさの引張荷重を印加して強
度試験を行う光分岐結合部の製造装置であつて、
駆動モータを備えた光フアイバ移動手段である光
フアイバ移動ステージ上に設置され、前記光フア
イバの少なくとも加熱融着時に前記光フアイバの
心線部を前記接触部の両側で保持する二個の心線
クランプと、放電電源に接続され前記光フアイバ
の接触部を加熱融着する放電電極と、前記光フア
イバの強度試験時に前記光フアイバの素線部を前
記接触部の両側でかつ前記心線クランプより接触
部側で保持する二個の素線クランプと、該素線ク
ランプの一方の素線クランプに取り付けられた引
張荷重測定器と、前記駆動モータ、前記放電電
源、前記引張荷重測定器をそれぞれ制御する制御
回路とを備えたことを特徴とする光分岐結合部の
製造装置。 ２ 特許請求の範囲第１項に記載の光分岐部の製
造装置において、所定の大きさの引張荷重が、光
分岐結合部の固定時において光分岐結合部に生ず
る内部応力による荷重より僅かに大きな値の荷重
であることを特徴とする光分岐結合部の製造装
置。[Scope of Claims] 1. A plurality of optical fibers are arranged in parallel to each other, their strands are brought into contact with each other, and the contact portions are heated and fused while moving to form an optical branching/coupling portion, and then the optical branching/coupling portion is A manufacturing device for an optical branching joint that performs a strength test by applying a tensile load of a predetermined magnitude to the
Two core wires are installed on an optical fiber moving stage that is an optical fiber moving means equipped with a drive motor, and hold the core wire portion of the optical fiber on both sides of the contact portion at least when the optical fiber is being heat fused. a clamp, a discharge electrode that is connected to a discharge power supply and heat-fuses the contact portion of the optical fiber, and a wire portion of the optical fiber on both sides of the contact portion and from the core wire clamp when testing the strength of the optical fiber. Controls two wire clamps held on the contact portion side, a tensile load measuring device attached to one of the wire clamps, the drive motor, the discharge power source, and the tensile load measuring device, respectively. What is claimed is: 1. A manufacturing device for an optical branching/coupling unit, comprising: a control circuit for controlling an optical branching/coupling unit. 2. In the optical branching unit manufacturing device according to claim 1, the tensile load of a predetermined magnitude is slightly larger than the load due to internal stress generated in the optical branching/coupling unit when the optical branching/coupling unit is fixed. A manufacturing device for an optical branching/coupling unit, characterized in that the load is a value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17799084A JPS6155615A (en) | 1984-08-27 | 1984-08-27 | Manufacture of light branching and coupling section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17799084A JPS6155615A (en) | 1984-08-27 | 1984-08-27 | Manufacture of light branching and coupling section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6155615A JPS6155615A (en) | 1986-03-20 |
| JPH0449084B2 true JPH0449084B2 (en) | 1992-08-10 |
Family
ID=16040608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17799084A Granted JPS6155615A (en) | 1984-08-27 | 1984-08-27 | Manufacture of light branching and coupling section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6155615A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02114213A (en) * | 1988-10-25 | 1990-04-26 | Sumitomo Electric Ind Ltd | Manufacture of fiber type coupler |
| JP2532281Y2 (en) * | 1991-07-02 | 1997-04-09 | 住友電気工業株式会社 | Fiber type coupler manufacturing equipment |
| JPH0559409U (en) * | 1992-10-26 | 1993-08-06 | 日本航空電子工業株式会社 | Optical fiber coupler manufacturing equipment |
| CN101408644B (en) * | 2008-11-19 | 2010-04-07 | 北京航天时代光电科技有限公司 | Method for preparing high-reliability optical fiber coupler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53127750A (en) * | 1977-03-23 | 1978-11-08 | Toshiba Corp | Optical distrubutor |
| JPS5488138A (en) * | 1977-12-26 | 1979-07-13 | Toshiba Corp | Production of optical distributor |
-
1984
- 1984-08-27 JP JP17799084A patent/JPS6155615A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53127750A (en) * | 1977-03-23 | 1978-11-08 | Toshiba Corp | Optical distrubutor |
| JPS5488138A (en) * | 1977-12-26 | 1979-07-13 | Toshiba Corp | Production of optical distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6155615A (en) | 1986-03-20 |
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