JPH0519131A - Optical parts - Google Patents

Optical parts

Info

Publication number
JPH0519131A
JPH0519131A JP3229647A JP22964791A JPH0519131A JP H0519131 A JPH0519131 A JP H0519131A JP 3229647 A JP3229647 A JP 3229647A JP 22964791 A JP22964791 A JP 22964791A JP H0519131 A JPH0519131 A JP H0519131A
Authority
JP
Japan
Prior art keywords
substrate
optical fiber
groove
fixing
plastic
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.)
Pending
Application number
JP3229647A
Other languages
Japanese (ja)
Inventor
Hideto Tachibana
秀人 立花
Koichi Hayakawa
弘一 早川
Nobuo Tomita
信夫 富田
Hiromu Miyazaki
煕 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIYOUDENSHIYA KK
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
SHIYOUDENSHIYA KK
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHIYOUDENSHIYA KK, Furukawa Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical SHIYOUDENSHIYA KK
Priority to JP3229647A priority Critical patent/JPH0519131A/en
Publication of JPH0519131A publication Critical patent/JPH0519131A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29368—Light guide comprising the filter, e.g. filter deposited on a fibre end
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3865—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using moulding techniques
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12109—Filter

Abstract

PURPOSE:To injection-mold a substrate at a low cost and with good mass- productivity and accuracy irrespective of the number of cores by making the substrate of a plastic. CONSTITUTION:A phenolic resin mixed with glass or a filler to specify its linear expansion coefficient is injection-molded into a plastic substrate 11. A wide groove 8 for fixing a multicore ribbon optical fiber is formed on both ends of the substrate 11, narrow V-grooves 7 of the same number as the cores for fixing multicore uncoated optical fibers are linearly and continuously formed between the wide grooves 8 in succession to the wide groove. Further, a slit 4 is allowed to cross the narrow V-groove at a specified angle to fix the filter chip.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、光信号を分波、偏光ま
たは減光するための光部品などの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in optical components for demultiplexing, polarizing or dimming an optical signal.

【０００２】[0002]

【従来の技術】光通信に使用される、光信号の分波、偏
光分離または減光用の光部品は、例えば図４に示すよう
な構造をしている。即ち、一本の光ファイバ１の中間部
分の被覆を所定長さ除去して裸光ファイバ部２を形成
し、この裸光ファイバ部２を基板３上に接着剤で直線状
に固定し、前記裸光ファイバ部２の中央部分にスリット
４を入れ、このスリット４にフィルタチップ５を挿入し
て光学接着剤で固着している。しかる後、この基板３は
保護ケース（図示されず）で保護される。従来、上記光
部品の構成部材である基板３は、図５に示す形状をして
いる。即ち、両端に被覆されたままの光ファイバ１を固
着する太Ｖ溝６、および中央部分に被覆が除去された裸
光ファイバ部２を固着する細Ｖ溝７が連続して直線状に
彫られ、さらに前記細Ｖ溝７を所定の角度で横切ってフ
ィルタチップ５を固定するためのスリット４が設けられ
ている。この基板３は、通常、金属製である。2. Description of the Related Art An optical component for demultiplexing, polarization splitting or dimming an optical signal used in optical communication has a structure as shown in FIG. 4, for example. That is, the coating of the intermediate portion of one optical fiber 1 is removed by a predetermined length to form the bare optical fiber portion 2, and the bare optical fiber portion 2 is fixed linearly on the substrate 3 with an adhesive, A slit 4 is formed in the central portion of the bare optical fiber portion 2, and a filter chip 5 is inserted into the slit 4 and fixed with an optical adhesive. Then, the substrate 3 is protected by a protective case (not shown). Conventionally, the substrate 3, which is a constituent member of the optical component, has the shape shown in FIG. That is, a thick V-groove 6 for fixing the optical fiber 1 still coated on both ends and a thin V-groove 7 for fixing the bare optical fiber portion 2 with the coating removed at the central portion are continuously engraved in a straight line. Further, a slit 4 for fixing the filter chip 5 is provided across the thin V groove 7 at a predetermined angle. This substrate 3 is usually made of metal.

【０００３】[0003]

【発明が解決しようとする課題】光通信の中継系から加
入者網への導入が急速に進み、それにともない、光ケー
ブルも高密度化され、数心一括となったリボン心線が主
に用いられている。このリボン心線に対応するために
は、光部品の金属製基板を精度良く機械加工しなければ
ならない。しかしながら、金属材を所望の精度で加工す
ることは困難であり、また心数が多くなるほどコストが
かかるという問題があった。The rapid introduction of optical communication from a relay system to a subscriber network has accompanied a rapid increase in the density of optical cables, and ribbon cores made up of several cores are mainly used. ing. In order to deal with this ribbon core, the metal substrate of the optical component must be machined with high precision. However, there is a problem that it is difficult to process a metal material with desired accuracy, and the cost increases as the number of cores increases.

【０００４】[0004]

【課題を解決するための手段と作用】本発明は上記問題
点を解決した光部品を提供するもので、光ファイバを固
着する広溝と、該光ファイバの裸光ファイバ部を固着す
る細溝を有する基板を含む光部品において、前記基板は
プラスチックからなることを特徴とするものである。上
述のように基板をプラスチック製にすると、射出成型加
工により量産性が良く、加工精度も良く、しかも心数に
かかわりなく低コストで基板を加工することができる。SUMMARY OF THE INVENTION The present invention provides an optical component which solves the above-mentioned problems. It is a wide groove for fixing an optical fiber and a narrow groove for fixing a bare optical fiber portion of the optical fiber. In the optical component including the substrate having, the substrate is made of plastic. When the substrate is made of plastic as described above, it is possible to process the substrate at a low cost regardless of the number of cores with good mass productivity and good processing accuracy by injection molding.

【０００５】[0005]

【実施例】以下，図面に示した実施例に基づいて本発明
を詳細に説明する。図１は本発明にかかる光部品に用い
られたプラスチック製の基板１１を示す。この基板は、
所定の線膨張係数（１．０×１０-5１／℃〜５．０×１
０-5１／℃）に合わせるために、ガラス・フィラーを混
入したフェノール樹脂を射出成型して製作した。基板１
１の形状は、被覆された状態の多心リボン光ファイバを
固着する広溝８が両端に形成され、その広溝８間に被覆
が除去された多心裸光ファイバを固着する細Ｖ溝７が心
数の数だけ前記広溝に直線状に連続して形成されてい
る。更に、フィルタチップを固定するために、上記細Ｖ
溝を所定の角度で横切るスリット４が形成されている。
上記プラスチック基板１１とシングルモード・リボン・
ファイバ多心光ファイバを用いて製作した光部品を図２
に示す。この光部品は、１本の多心光ファイバ９の中央
部分の被覆を所定長さ除去して多心裸光ファイバ部１０
を形成し、この多心裸光ファイバ部１０を細Ｖ溝７に、
被覆のある多心光ファイバ９部分を広溝８に接着剤で固
定し、次いで、多心裸光ファイバ部１０のスリット４に
相当する部分にスリットをいれて、そこに２０μｍ厚さ
のフィルタチップ５を挿入し、光学接着剤で固着し、し
かる後、保護パイプ１２を接着剤１３で固定したもので
ある。この光部品の特性を表１に示す。表１より、初期
損失および表２に示す各種試験を施した後の損失は、い
ずれも、従来の切削加工により作製された金属製基板を
用いた光部品の損失と同等であることがわかる。このよ
うにして製作されるプラスチック製基板は、金型により
成形されるため、金属製基板の１％程度のコストで製作
可能であり、しかも、寸法の再現性もよい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. FIG. 1 shows a plastic substrate 11 used for an optical component according to the present invention. This board is
Predetermined linear expansion coefficient (1.0 × 10 -5 1 / ° C to 5.0 × 1
It was manufactured by injection molding a phenol resin mixed with a glass filler in order to adjust the temperature to 0 -5 1 / ° C. Board 1
In the shape of No. 1, wide grooves 8 for fixing the coated multi-core ribbon optical fiber are formed at both ends, and between the wide grooves 8, a thin V groove 7 for fixing the multi-fiber bare optical fiber with the coating removed is formed. Are continuously formed linearly in the wide groove by the number of cores. Further, in order to fix the filter chip, the thin V
A slit 4 is formed so as to cross the groove at a predetermined angle.
The plastic substrate 11 and the single mode ribbon
Figure 2 shows an optical component manufactured using a multi-fiber optical fiber.
Shown in. In this optical component, the coating of the central portion of one multi-fiber optical fiber 9 is removed by a predetermined length, and the multi-fiber bare optical fiber portion 10 is formed.
To form the multi-fiber bare optical fiber portion 10 in the thin V groove 7,
The coated multi-core optical fiber 9 part is fixed to the wide groove 8 with an adhesive, and then a slit corresponding to the slit 4 of the multi-core bare optical fiber part 10 is provided with a slit, and there is a filter chip having a thickness of 20 μm. 5 is inserted and fixed with an optical adhesive, and then the protective pipe 12 is fixed with an adhesive 13. The characteristics of this optical component are shown in Table 1. From Table 1, it can be seen that the initial loss and the loss after performing the various tests shown in Table 2 are both the same as the loss of the optical component using the metal substrate manufactured by the conventional cutting process. Since the plastic substrate manufactured in this way is molded by a mold, it can be manufactured at a cost of about 1% of that of a metal substrate, and the dimension reproducibility is good.

【０００６】[0006]

【表１】 [Table 1]

【０００７】[0007]

【表２】 [Table 2]

【０００８】尚、上記実施例は多心の光ファイバ用基板
であったが、本発明は単心用基板にも適用できることは
いうまでもない。例えば図３は、本発明にかかる他の実
施例である方向性結合器に用いる基板２１の上面図であ
る。図中、２６は光ファイバを固着する太Ｖ溝、２７は
裸光ファイバ部を固着する細Ｖ溝、２４はフィルタチッ
プを挿入するスリットである。スリット２４は、細Ｖ溝
２７に対して直角方向から５°程度傾いた角度をなして
いる。Although the above-mentioned embodiment is a multi-fiber optical fiber substrate, it goes without saying that the present invention can also be applied to a single-core substrate. For example, FIG. 3 is a top view of a substrate 21 used in a directional coupler according to another embodiment of the present invention. In the figure, 26 is a thick V groove for fixing an optical fiber, 27 is a thin V groove for fixing a bare optical fiber portion, and 24 is a slit for inserting a filter chip. The slit 24 makes an angle of about 5 ° with respect to the thin V-shaped groove 27 from the right angle direction.

【０００９】なお、用いられるプラスチック材として
は、１５０℃以上の熱変形温度を有し、力学的強度の大
きい材料が望ましい。例えば、ポリエーテルエチルケト
ン、ポリパラフェニレンスルフィド、ポリアリルサルフ
ォン、ポリアリレート、熱可塑性ポリイミドなどの押し
出し可能なエンジニアリング・プラスチック材、フェノ
ール樹脂、フラン樹脂などでガラスおよびアスベスなど
で強化されたもの、あるいはフッ素樹脂などがある。価
格面からは、強化型のフェノール樹脂、ナイロン、メラ
ミン樹脂、キシレン樹脂、フラン樹脂などが望ましい。The plastic material used is preferably a material having a heat distortion temperature of 150 ° C. or higher and high mechanical strength. For example, engineering materials that can be extruded such as polyether ethyl ketone, polyparaphenylene sulfide, polyallyl sulfone, polyarylate, thermoplastic polyimide, phenol resin, furan resin, etc. reinforced with glass and asbestos, etc., Alternatively, there is a fluororesin or the like. From the viewpoint of price, reinforced phenol resin, nylon, melamine resin, xylene resin, furan resin and the like are preferable.

【００１０】[0010]

【発明の効果】以上説明したように本発明によれば、光
ファイバを固着する広溝と、該光ファイバの裸光ファイ
バ部を固着する細溝を有する基板を含む光部品におい
て、前記基板はプラスチックからなるため、高密度光線
路に適用できる光部品を低コストで製作することが出来
るという優れた効果がある。As described above, according to the present invention, in the optical component including the substrate having the wide groove for fixing the optical fiber and the narrow groove for fixing the bare optical fiber portion of the optical fiber, the substrate is Since it is made of plastic, there is an excellent effect that an optical component applicable to a high-density optical line can be manufactured at low cost.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明に係る光部品に用いられるプラスチック
製基板の一実施例の斜視図である。FIG. 1 is a perspective view of an embodiment of a plastic substrate used for an optical component according to the present invention.

【図２】前記プラスチック製基板を用いた光部品の部分
断面斜視図である。FIG. 2 is a partial cross-sectional perspective view of an optical component using the plastic substrate.

【図３】本発明に係る光部品に用いられるプラスチック
製基板の他の実施例の上面図である。FIG. 3 is a top view of another embodiment of the plastic substrate used in the optical component according to the present invention.

【図４】光部品の説明図である。FIG. 4 is an explanatory diagram of an optical component.

【図５】前記説明図に用いた基板の斜視図である。FIG. 5 is a perspective view of a substrate used in the explanatory diagram.

【符号の説明】[Explanation of symbols]

１ 光ファイバ ２ 裸光ファイバ部 ３、１１、２１ 基板 ４、２４ スリット ５ フィルタチップ ６、２６ 太Ｖ溝 ７、２７ 細Ｖ溝 ８ 広溝 ９ 多心光ファイバ １０ 多心裸光ファイバ部 １２ 保護パイプ １３ 接着剤 1 Optical fiber 2 Naked optical fiber part 3, 11, 21 Substrate 4, 24 Slit 5 Filter chip 6, 26 Thick V groove 7, 27 Fine V groove 8 Wide groove 9 Multi-core optical fiber 10 Multi-core bare optical fiber part 12 Protection Pipe 13 adhesive

───────────────────────────────────────────────────── フロントページの続き (72)発明者 早川 弘一 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 (72)発明者 富田 信夫 東京都千代田区内幸町１丁目１番６号 日 本電信電話株式会社内 (72)発明者 宮崎 煕 東京都品川区西五反田５丁目23番８号 株 式会社正電社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koichi Hayakawa 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Innovator Nobuo Tomita 1-1-6, Uchisaiwai-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corp. (72) Inventor Miyazaki 5-23-8 Gotanda, Nishikawa, Shinagawa-ku, Tokyo

Claims (1)

【特許請求の範囲】 【請求項１】 光ファイバを固着する広溝と、該光ファ
イバの裸光ファイバ部を固着する細溝を有する基板を含
む光部品において、前記基板はプラスチックからなるこ
とを特徴とする光部品。Claim: What is claimed is: 1. An optical component comprising a substrate having a wide groove for fixing an optical fiber and a narrow groove for fixing a bare optical fiber portion of the optical fiber, wherein the substrate is made of plastic. A characteristic optical component.
JP3229647A 1990-08-17 1991-08-16 Optical parts Pending JPH0519131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3229647A JPH0519131A (en) 1990-08-17 1991-08-16 Optical parts

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP21676290 1990-08-17
JP2-216762 1990-08-17
JP3229647A JPH0519131A (en) 1990-08-17 1991-08-16 Optical parts

Publications (1)

Publication Number Publication Date
JPH0519131A true JPH0519131A (en) 1993-01-29

Family

ID=26521612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3229647A Pending JPH0519131A (en) 1990-08-17 1991-08-16 Optical parts

Country Status (1)

Country Link
JP (1) JPH0519131A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425118A (en) * 1992-12-28 1995-06-13 Matsushita Electric Industrial Co., Ltd. Optical component mounting substrate and method of producing the same
JP2005208192A (en) * 2004-01-21 2005-08-04 Fujikura Ltd Optical components for optical communication line
WO2014136848A1 (en) * 2013-03-07 2014-09-12 住友電気工業株式会社 Optical connector
JP2016206210A (en) * 2015-04-15 2016-12-08 日本電信電話株式会社 Optical jumper unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425118A (en) * 1992-12-28 1995-06-13 Matsushita Electric Industrial Co., Ltd. Optical component mounting substrate and method of producing the same
JP2005208192A (en) * 2004-01-21 2005-08-04 Fujikura Ltd Optical components for optical communication line
WO2014136848A1 (en) * 2013-03-07 2014-09-12 住友電気工業株式会社 Optical connector
JP2016206210A (en) * 2015-04-15 2016-12-08 日本電信電話株式会社 Optical jumper unit

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