JP2861305B2 - Fusion splicing and reinforcing method for optical fiber - Google Patents
Fusion splicing and reinforcing method for optical fiberInfo
- Publication number
- JP2861305B2 JP2861305B2 JP18172490A JP18172490A JP2861305B2 JP 2861305 B2 JP2861305 B2 JP 2861305B2 JP 18172490 A JP18172490 A JP 18172490A JP 18172490 A JP18172490 A JP 18172490A JP 2861305 B2 JP2861305 B2 JP 2861305B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fusion splicing
- discharge
- reinforcing
- fusion
- 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 - Fee Related
Links
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は光ファイバの接続技術に関し、特に低損失、
高品質、高信頼性を有する接続を実現する光ファイバの
融着接続補強方法に関するものである。Description: TECHNICAL FIELD The present invention relates to an optical fiber connection technique, and particularly to a low-loss connection technique.
The present invention relates to a method for reinforcing a fusion splicing of an optical fiber for realizing a connection having high quality and high reliability.
(従来の技術及び解決しようとする課題) 近年光ファイバの種類は飛躍的に増加し、単心でもシ
ングルモード型、マルチモード型、分散シフトシングル
モード型等、同一の外径(約125μmφ)であってもそ
れぞれに放電融着条件が異なる種別のものが普及しつつ
ある。又多心光ファイバともなると、心数が2心、4
心、8心、12心等の心数があり、それぞれにやはり放電
融着条件が異なる。一方融着接続装置には単心から多心
まで接続可能な共用型の融着接続装置が開発されてきて
いる。(Conventional technology and problems to be solved) In recent years, the types of optical fibers have increased dramatically, and single fibers, single mode type, multi mode type, dispersion shift single mode type, etc. have the same outer diameter (about 125 μmφ). Even though there are different types of discharge fusion conditions, the types are different. When a multi-core optical fiber is used, the number of cores is 2
There are a number of cores such as 8 cores, 12 cores, etc., and the discharge fusion conditions also differ for each. On the other hand, as a fusion splicing device, a common type fusion splicing device capable of connecting from a single core to multiple cores has been developed.
又光ファイバの融着接続点は熱収縮チューブ等によっ
て補強する必要があるが、補強に先立ってスクリーニン
グ荷重を与え、接続部の信頼性を保証する方法がとられ
ている。しかし、上述の光ファイバの種別、心数によっ
てスクリーニング荷重を設定すべきであるが、これまで
は細かく荷重を設定することが行なわれていないのが実
情であった。Further, it is necessary to reinforce the fusion splicing point of the optical fiber with a heat-shrinkable tube or the like. However, prior to the reinforcement, a screening load is applied to assure the reliability of the spliced portion. However, the screening load should be set according to the type and the number of cores of the optical fiber described above. However, it has been the fact that the load has not been set finely until now.
(課題を解決するための手段) 本発明は上述の問題点を解消し、単一CPU(中央演算
処理装置)、単一設定スイッチボードにより融着接続工
程と補強工程を管理統轄し、低損失、高品質、高信頼性
を有する接続を実現する光ファイバの融着接続補強方法
を提供するもので、その特徴は、多心光ファイバの種別
及び心数を設定し、この設定された種別及び心数により
融着接続条件値及びスクリーニング荷重値をあらかじめ
記憶させてあるメモリ領域、及び放電融着部、補強部を
備え、上記放電融着部は、放電電流値及び放電時間を放
電制御回路によって、光ファイバの押し込み量を光ファ
イバの移動制御回路によって、いずれもあらかじめメモ
リ領域に記憶された融着接続条件によって制御し、上記
補強部は、加熱ヒーター温度をヒーター制御回路によっ
て、スクリーニング荷重をモータ駆動回路によってあら
かじめメモリ領域に記憶されたスクリーニング荷重によ
って制御し、低損失で接続すると共に最適のスクリーニ
ング荷重を光ファイバに与えて接続後の補強を行なうこ
とにある。(Means for Solving the Problems) The present invention solves the above-mentioned problems, and manages and controls the fusion splicing process and the reinforcing process with a single CPU (central processing unit) and a single setting switch board, thereby achieving low loss. , High quality, to provide a fusion splicing reinforcement method of optical fiber that realizes connection with high reliability, the feature is to set the type and number of multi-core optical fiber, the set type and A memory area in which a fusion splicing condition value and a screening load value are stored in advance according to the number of cores, and a discharge fusion portion, a reinforcing portion, wherein the discharge fusion portion controls a discharge current value and a discharge time by a discharge control circuit. The amount of pushing of the optical fiber is controlled by the optical fiber movement control circuit in accordance with the fusion splicing conditions stored in the memory area in advance, and the reinforcing section controls the heater temperature by the heater control circuit. The object of the present invention is to control the screening load by the road by the screening load stored in the memory area in advance by the motor drive circuit, connect the optical fiber with low loss, and apply the optimum screening load to the optical fiber to reinforce the connection after the connection.
(実施例) 第1図は本発明の融着接続補強方法の具体例の構成図
である。(Example) FIG. 1 is a configuration diagram of a specific example of the fusion splicing reinforcement method of the present invention.
図面において、(10)は光ファイバの種別及び多心光
ファイバ心線の心数を設定し、この設定された種別及び
心数により融着接続条件値及びスクリーニング荷重値を
あらかじめ記憶させてあるメモリ領域、(20)は放電融
着部、(30)は補強部である。In the drawing, (10) is a memory in which the type of optical fiber and the number of cores of the multi-core optical fiber are set, and the fusion splicing condition value and the screening load value are stored in advance according to the set type and number of cores. A region, (20) is a discharge fusion bonding portion, and (30) is a reinforcement portion.
放電融着部(20)においては、光ファイバ心線(1)
の端部被覆層を除去して露出した光ファイバ(2)の2
本は、その端面を対向させてクランプ(21)にセット
し、放電電極棒(22)の中間に位置させる。ここで放電
を開始して光ファイバ(2)を溶融すると同時に光ファ
イバ(2)をその軸心の方向に押し込み接続する。光フ
ァイバ(2)の押し込みはモータ(25)の駆動力を歯車
(24)を介して一方のクランプ(21)に設置したネジ
(23)に伝えることによって行なわれる。また、光源
(26)、TVカメラ(27)を備えることで、接続前後の品
質評価を自動的に行なう技術も開発されている。In the discharge spliced part (20), the optical fiber core (1)
Of the optical fiber (2) exposed by removing the end coating layer of
The book is set on the clamp (21) with its end faces facing each other, and is positioned in the middle of the discharge electrode rod (22). At this point, discharge is started to melt the optical fiber (2), and at the same time, the optical fiber (2) is pushed and connected in the direction of its axis. The pushing of the optical fiber (2) is performed by transmitting the driving force of the motor (25) to the screw (23) installed on one clamp (21) via the gear (24). In addition, a technology has been developed in which a light source (26) and a TV camera (27) are provided to automatically perform quality evaluation before and after connection.
補強部(30)においては、接続された光ファイバ
(2)に熱収縮チューブ等の補強用チューブ(3)を挿
通し、2つのクランプ(31a)(31b)にセットする。2
つのクランプ(31a)(31b)間には加熱ヒータ(32)を
配置し、片方のクランプ(31b)を光ファイバ(2)の
光軸方向に引っ張り、破断しなければそのまま加熱を開
始し、光ファイバ(2)と補強用チューブ(3)を一体
化する。In the reinforcing part (30), a reinforcing tube (3) such as a heat-shrinkable tube is inserted into the connected optical fiber (2) and set in two clamps (31a) (31b). 2
A heater (32) is arranged between the clamps (31a) and (31b), and one clamp (31b) is pulled in the optical axis direction of the optical fiber (2). The fiber (2) and the reinforcing tube (3) are integrated.
前記放電融着部(20)における制御は、放電電流値及
び放電時間は放電制御回路によって行なわれ、光ファイ
バの押し込み量は光ファイバの移動制御回路によって行
なわれるが、いずれもあらかじめメモリ領域(10)に記
憶された融着接続条件によって動作する。The control in the discharge fusion section (20) is performed by a discharge control circuit for a discharge current value and a discharge time, and the amount of pushing of the optical fiber is performed by a movement control circuit of the optical fiber. The operation is performed according to the fusion splicing conditions stored in (1).
補強部(30)の制御は、加熱ヒータ(32)の温度は温
度検出器(33)によって検出し、ヒータ制御回路によっ
て行なわれる。又光ファイバ(2)に引っ張り力を与え
るスクリーニング荷重は一方のクランプ(31b)に設置
したボールネジ(34)の回転数をエンコーダ(36)で検
出し、モータ駆動回路によってモータ(37)を駆動し、
歯車(35)を介してボールネジ(34)に伝えることによ
って行なわれるが、これもあらかじめメモリ領域(10)
に記憶されたスクリーニング荷重によって動作する。The control of the reinforcing portion (30) is performed by a heater control circuit, wherein the temperature of the heater (32) is detected by a temperature detector (33). The screening load for applying a pulling force to the optical fiber (2) is obtained by detecting the number of revolutions of the ball screw (34) installed on one clamp (31b) with the encoder (36) and driving the motor (37) by the motor drive circuit. ,
This is performed by transmitting the ball screw (34) via the gear (35), which is also performed in advance in the memory area (10).
It operates with the screening load stored in the.
このような制御における光ファイバの種類、心数は設
定スイッチボード(42)の同一の設定スイッチによって
選定されるが、本発明では融着接続工程と補強工程が単
一のCPUで統轄されているために、唯1回の操作だけ
で、融着接続及び補強の両者が最適条件に設定される。The type and the number of optical fibers in such control are selected by the same setting switch of the setting switch board (42), but in the present invention, the fusion splicing process and the reinforcing process are controlled by a single CPU. Therefore, the fusion splicing and the reinforcement are set to optimal conditions with only one operation.
第2図は本発明における補強機構の実施例の詳細な説
明図で、同図(イ)は構成図、同図(ロ)は回路図であ
る。FIG. 2 is a detailed explanatory view of an embodiment of a reinforcing mechanism according to the present invention. FIG. 2A is a configuration diagram, and FIG. 2B is a circuit diagram.
本機構においては、メモリ領域の設定荷重はパルス数
で設定されている。そしてボールネジ(38)の回転数を
エンコーダ(36)で読みとり、そのデータAがメモリの
データBに対してデータA≧データBとなるまでモータ
(37)を駆動するよう制御する。ここでデータBは、予
めバネ(40)とバネ(39)の差により光ファイバ(2)
に加わる力が決定されており、所望するスクリーニング
力とパルス数との関係は求まっている。なお、図面にお
いて(39)は補償バネ、(40)は荷重バネ、(41)はガ
イドシャフトである。In this mechanism, the set load of the memory area is set by the number of pulses. Then, the rotation speed of the ball screw (38) is read by the encoder (36), and the motor (37) is controlled to drive the motor (37) until the data A exceeds the data B in the memory. Here, the data B is stored in advance in the optical fiber (2) by the difference between the spring (40) and the spring (39).
Has been determined, and the relationship between the desired screening power and the number of pulses has been determined. In the drawings, (39) is a compensation spring, (40) is a load spring, and (41) is a guide shaft.
(発明の効果) 以上説明したように、本発明の光ファイバの融着接続
補強方法によれば、融着接続工程と補強工程が単一の中
央演算処理工程で統轄されているために、最初の唯1回
の設定スイッチボードの操作だけで両者の最適条件に設
定できる。このため、融着接続条件が適合しているの
に、スクリーニング荷重が相違するといったミスを防止
することが出来、高品質、高信頼性の接続が実現でき
る。(Effect of the Invention) As described above, according to the fusion splicing and reinforcing method for an optical fiber of the present invention, the fusion splicing step and the reinforcement step are controlled by a single central processing step, so that With only one operation of the setting switch board, the optimum conditions can be set for both. For this reason, it is possible to prevent mistakes such as a difference in screening load even when the fusion splicing conditions are matched, and high quality and highly reliable connection can be realized.
第1図は本発明の融着接続補強方法の具体例の構成図で
ある。 第2図は本発明におけるスクリーニング荷重の制御機構
の1つの実施例を示す説明図で、同図(イ)は構成図、
同図(ロ)は回路図である。 1…光ファイバ心線、2…光ファイバ、3…補強用チュ
ーブ、 10…メモリ領域、20…放電融着部、30…補強部、41…CP
U(中央演算処理装置)、42…設定スイッチボード。FIG. 1 is a configuration diagram of a specific example of the fusion splicing reinforcement method of the present invention. FIG. 2 is an explanatory view showing one embodiment of a screening load control mechanism according to the present invention. FIG.
FIG. 2B is a circuit diagram. DESCRIPTION OF SYMBOLS 1 ... Optical fiber core wire, 2 ... Optical fiber, 3 ... Reinforcing tube, 10 ... Memory area, 20 ... Discharge fusion part, 30 ... Reinforcement part, 41 ... CP
U (central processing unit), 42 ... setting switch board.
フロントページの続き (72)発明者 岡本 洋一 神奈川県横浜市栄区田谷町1番地 住友 電気工業株式会社横浜製作所内 (56)参考文献 特開 昭62−196604(JP,A) 特開 昭64−11208(JP,A) 特開 昭58−220114(JP,A) 特開 昭61−55615(JP,A) 特開 昭62−50710(JP,A) 実開 昭61−104352(JP,U) 実開 昭63−5451(JP,U) (58)調査した分野(Int.Cl.6,DB名) G02B 6/24 301Continuation of front page (72) Inventor Yoichi Okamoto 1 Tayacho, Sakae-ku, Yokohama-shi, Kanagawa Prefecture Sumitomo Electric Industries, Ltd. Yokohama Works (56) References JP-A-62-196604 (JP, A) JP-A-64-11208 (JP, A) JP-A-58-220114 (JP, A) JP-A-61-55615 (JP, A) JP-A-62-50710 (JP, A) JP-A-61-104352 (JP, U) 63-5451 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) G02B 6/24 301
Claims (2)
融して接続し、続いて接続部の補強を行う光ファイバの
融着接続及び補強方法において、多心光ファイバの種別
及び心数を設定し、この設定された種別及び心数により
融着接続条件値及びスクリーニング荷重値をあらかじめ
記憶させてあるメモリ領域、及び放電融着部、補強部を
備え、上記放電融着部は、放電電流値及び放電時間を放
電制御回路によって、光ファイバの押し込み量を光ファ
イバの移動制御回路によって、いずれもあらかじめメモ
リ領域に記憶された融着接続条件によって制御し、上記
補強部は、加熱ヒーター温度をヒーター制御回路によっ
て、スクリーニング荷重をモータ駆動回路によって、あ
らかじめメモリ領域に記憶されたスクリーニング荷重に
よって制御し、低損失で接続すると共に最適のスクリー
ニング荷重を光ファイバに与えて接続後の補強を行なう
ことを特徴とする光ファイバの融着接続及び補強方法。1. A fusion splicing and reinforcing method for an optical fiber in which an optical fiber is melted by being heated by air discharge and subsequently reinforcing a connecting portion, the type and the number of cores of the multi-core optical fiber are set. A memory area in which a fusion splicing condition value and a screening load value are stored in advance according to the set type and the number of cores, a discharge fusion section, and a reinforcing section, wherein the discharge fusion section has a discharge current value The discharge time is controlled by a discharge control circuit, the pushing amount of the optical fiber is controlled by an optical fiber movement control circuit, and both are controlled by fusion splicing conditions stored in a memory area in advance. The control circuit controls the screening load by the motor drive circuit according to the screening load stored in the memory area in advance. Fusion splicing and the reinforcing method for an optical fiber and performs a reinforcement after the connection the optimum screening load while connected with loss given to the optical fiber.
て可変とし、この引張り力を光ファイバに与えてスクリ
ーニング荷重となし、上記歯車の回転量の変化を読み取
ることでスクリーニング荷重を調整することを特徴とす
る請求項(1)記載の光ファイバの融着接続及び補強方
法。2. The screening load is adjusted by making the amount of extension of a spring variable by rotation of a screw and a gear, and applying this pulling force to an optical fiber as a screening load, and reading the change in the amount of rotation of the gear. The method for fusion splicing and reinforcing an optical fiber according to claim 1, wherein:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18172490A JP2861305B2 (en) | 1990-07-09 | 1990-07-09 | Fusion splicing and reinforcing method for optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18172490A JP2861305B2 (en) | 1990-07-09 | 1990-07-09 | Fusion splicing and reinforcing method for optical fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0468302A JPH0468302A (en) | 1992-03-04 |
JP2861305B2 true JP2861305B2 (en) | 1999-02-24 |
Family
ID=16105773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18172490A Expired - Fee Related JP2861305B2 (en) | 1990-07-09 | 1990-07-09 | Fusion splicing and reinforcing method for optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2861305B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4367597B2 (en) * | 2000-12-05 | 2009-11-18 | 住友電気工業株式会社 | Fusion splicing device and splicing splicing method |
JP6469961B2 (en) * | 2014-04-02 | 2019-02-13 | 株式会社フジクラ | Optical device, fiber laser, and optical device manufacturing method |
-
1990
- 1990-07-09 JP JP18172490A patent/JP2861305B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0468302A (en) | 1992-03-04 |
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