JP2002182061A - Optical multiplexer/demultiplexer - Google Patents
Optical multiplexer/demultiplexerInfo
- Publication number
- JP2002182061A JP2002182061A JP2000383492A JP2000383492A JP2002182061A JP 2002182061 A JP2002182061 A JP 2002182061A JP 2000383492 A JP2000383492 A JP 2000383492A JP 2000383492 A JP2000383492 A JP 2000383492A JP 2002182061 A JP2002182061 A JP 2002182061A
- Authority
- JP
- Japan
- Prior art keywords
- demultiplexer
- optical multiplexer
- optical
- capillary
- protective tube
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光合分波器に関
し、その外周を保護チューブで被覆することにより、外
部環境の影響を受け難い構造とした光合分波器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical multiplexer / demultiplexer, and more particularly, to an optical multiplexer / demultiplexer whose outer periphery is covered with a protective tube so as to be hardly affected by an external environment.
【０００２】[0002]
【従来の技術】波長の異なる複数系統の光を合成（合
波）したり、分離（分波）する特性を備えた光合分波器
としては、例えば図２に示すような構造のものが提案さ
れている。この光合分波器の本体１０においては、円柱
状の２つの０．２５ピッチグリンレンズ１、１の間に誘
電体多層膜２が挟まれ、これらが接着剤などで固定され
ている。０．２５ピッチグリンレンズ１は円柱状で、レ
ンズに入射した光線は、正弦波状の光路をとって進む。
また、０．２５ピッチグリンレンズ１とは、円柱状のレ
ンズの長さをｌとし、正弦波の１周期の長さをｐとした
ときに、レンズの長さｌが０．２５ｐとなるレンズのこ
とである。2. Description of the Related Art For example, an optical multiplexer / demultiplexer having a characteristic of combining (multiplexing) or demultiplexing (demultiplexing) light of a plurality of systems having different wavelengths is proposed as shown in FIG. Have been. In the main body 10 of the optical multiplexer / demultiplexer, a dielectric multilayer film 2 is sandwiched between two cylindrical 0.25 pitch green lenses 1, 1, which are fixed with an adhesive or the like. The 0.25-pitch green lens 1 has a cylindrical shape, and a light beam incident on the lens travels along a sinusoidal optical path.
The 0.25 pitch green lens 1 is a lens in which the length of a cylindrical lens is 1 and the length of one cycle of a sine wave is p, and the lens length 1 is 0.25p. That is.
【０００３】一方、入射ポート６用と反射ポート７用の
光ファイバ素線３、３は、その先端の被覆層３ｂ、３ｂ
が除去されることにより露出した光ファイバ裸線３ａ、
３ａが、キャピラリ４内に設けられた二つの細孔４ａ、
４ａにそれぞれ挿入され、接着剤４ｂにて固定されてい
る。そして、このキャピラリ４が、０．２５ピッチグリ
ンレンズ１に接着剤で固定されている。また、出射ポー
ト８用の光ファイバ素線３が、同様にしてキャピラリ４
の細孔４ａに挿入され、接着剤４ｂにて固定され、０．
２５ピッチグリンレンズ１に接着剤で固定されている。On the other hand, the optical fiber wires 3 for the entrance port 6 and the reflection port 7 are provided with coating layers 3b, 3b at the tips thereof.
Is removed by removing the bare optical fiber 3a,
3a has two pores 4a provided in the capillary 4,
4a, and are fixed with an adhesive 4b. The capillary 4 is fixed to the 0.25 pitch green lens 1 with an adhesive. The optical fiber 3 for the output port 8 is similarly connected to the capillary 4.
Are fixed in the pores 4a of FIG.
It is fixed to the 25 pitch green lens 1 with an adhesive.
【０００４】さらに、光合分波器の耐透湿性、機械的強
度などを向上するために、光合分波器本体１０がステン
レスなどからなる補強部材１１に収容され、この補強部
材１１内に樹脂１２を流し込むなどして固定されてい
る。光合分波器本体１０を補強部材１１に固定するため
に用いられる樹脂１２は、一般に、エポキシ系接着剤な
どである。Further, in order to improve the moisture permeation resistance and mechanical strength of the optical multiplexer / demultiplexer, the optical multiplexer / demultiplexer main body 10 is housed in a reinforcing member 11 made of stainless steel or the like. It is fixed by pouring in. The resin 12 used for fixing the optical multiplexer / demultiplexer main body 10 to the reinforcing member 11 is generally an epoxy-based adhesive or the like.
【０００５】しかしながら、このような光合分波器の補
強方法では、ステンレス製の補強部材１１内に樹脂１２
を流し込む際に、補強部材１１の内部が見えないため
に、樹脂１２の必要量を把握することが困難である。補
強部材１１の内部に樹脂１２を過剰に流し込むと、光合
分波器本体１０のキャピラリ４とグリンレンズ１との接
合面、グリンレンズ１と誘電体多層膜２との接合面に樹
脂１２が侵入し、これら各部品の屈折率などの性能を劣
化させることがある。また、光合分波器本体１０のグリ
ンレンズ１と誘電体多層膜２との接合面、グリンレンズ
１とキャピラリ４との接合面に水分が侵入すると、光の
伝送損失が増加する。However, in such a method for reinforcing an optical multiplexer / demultiplexer, a resin 12 is provided in a reinforcing member 11 made of stainless steel.
Since the inside of the reinforcing member 11 cannot be seen when pouring the resin, it is difficult to grasp the required amount of the resin 12. When the resin 12 is excessively poured into the reinforcing member 11, the resin 12 enters the bonding surface between the capillary 4 and the green lens 1 of the optical multiplexer / demultiplexer main body 10 and the bonding surface between the green lens 1 and the dielectric multilayer film 2. However, the performance of these components, such as the refractive index, may be degraded. Further, when water enters the bonding surface between the green lens 1 and the dielectric multilayer film 2 and the bonding surface between the green lens 1 and the capillary 4 of the optical multiplexer / demultiplexer main body 10, light transmission loss increases.
【０００６】[0006]
【発明が解決しようとする課題】よって、本発明におけ
る課題は、耐透湿性、耐候性、機械的強度を有する光合
分波器を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an optical multiplexer / demultiplexer having moisture permeability, weather resistance, and mechanical strength.
【０００７】[0007]
【課題を解決するための手段】かかる課題を解決するた
め、本発明の光合分波器は、２つ以上のコリメータレン
ズの間に、誘電体多層膜が挿入され、該２つ以上のコリ
メータレンズの長手方向の誘電体多層膜と接合していな
い側のそれぞれにキャピラリを接合し、前記キャピラリ
内に形成された細孔に光ファイバを挿入してなる光合分
波器本体が保護チューブに収容されてなり、前記保護チ
ューブは、繊維状補強材に未硬化状態の熱硬化性樹脂を
含浸してなる成形材料で、前記光合分波器本体を包み、
加熱、硬化したものである。In order to solve this problem, an optical multiplexer / demultiplexer according to the present invention has a dielectric multilayer film inserted between two or more collimator lenses, and the two or more collimator lenses are inserted. An optical multiplexer / demultiplexer main body formed by joining a capillary to each of the sides not joined to the dielectric multilayer film in the longitudinal direction and inserting an optical fiber into a pore formed in the capillary is housed in a protective tube. The protective tube is a molding material obtained by impregnating a fibrous reinforcing material with an uncured thermosetting resin, and wraps the optical multiplexer / demultiplexer body,
Heated and cured.
【０００８】[0008]
【発明の実施の形態】以下、本発明を詳しく説明する。
図１は本発明の光合分波器の一例を側面から見た状態を
示す図である。なお、先に説明した従来の光合分波器と
同一構成部分については、同一符号を付した。この例の
光合分波器２０にあっては、まず、光合分波器本体１０
を作製する。光合分波器本体１０においては、円柱状の
２つの０．２５ピッチグリンレンズ１、１の間に誘電体
多層膜２が挟まれ、これらが接着剤などで固定されてい
る。一方、入射ポート６用と反射ポート７用の光ファイ
バ素線３、３は、その先端の被覆層３ｂ、３ｂが除去さ
れることにより露出した光ファイバ裸線３ａ、３ａが、
キャピラリ４内に設けられた二つの細孔４ａ、４ａにそ
れぞれ挿入され、接着剤４ｂにて固定されている。そし
て、このキャピラリ４が、０．２５ピッチグリンレンズ
１に接着剤で固定されている。また、出射ポート８用の
光ファイバ素線３は、同様にしてキャピラリ４の細孔４
ａに挿入され、接着剤４ｂにて固定され、０．２５ピッ
チグリンレンズ１に、接着剤で固定されている。そし
て、光合分波器２０は、この光合分波器本体１０を保護
チューブ１３に収容した構造となっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
FIG. 1 is a diagram showing an example of an optical multiplexer / demultiplexer according to the present invention when viewed from a side. The same components as those of the conventional optical multiplexer / demultiplexer described above are denoted by the same reference numerals. In the optical multiplexer / demultiplexer 20 of this example, first, the optical multiplexer / demultiplexer main body 10
Is prepared. In the optical multiplexer / demultiplexer main body 10, a dielectric multilayer film 2 is sandwiched between two cylindrical 0.25 pitch green lenses 1, 1, which are fixed with an adhesive or the like. On the other hand, the bare optical fibers 3a, 3a that are exposed by removing the coating layers 3b, 3b at the tips of the optical fiber strands 3, 3 for the entrance port 6 and the reflection port 7 are:
It is inserted into each of two small holes 4a, 4a provided in the capillary 4, and is fixed with an adhesive 4b. The capillary 4 is fixed to the 0.25 pitch green lens 1 with an adhesive. In addition, the optical fiber 3 for the output port 8 is similarly formed with the pore 4 of the capillary 4.
a, is fixed with an adhesive 4b, and is fixed to the 0.25 pitch green lens 1 with an adhesive. The optical multiplexer / demultiplexer 20 has a structure in which the optical multiplexer / demultiplexer main body 10 is housed in the protective tube 13.
【０００９】保護チューブ１３は、ガラス繊維、炭素繊
維などの補強材料に、未硬化状態のエポキシ樹脂、不飽
和ポリエステル樹脂などの熱硬化性樹脂を含浸してなる
成形材料からなるものである。この成形材料は、これを
加熱、硬化すると、光合分波器本体１０の補強部材とし
て優れた機械的強度、耐透湿性、耐候性を示し、光合分
波器２０の使用温度範囲における熱膨張率がほぼ零を示
すものとなる。具体的には、この成形材料は、炭素繊維
クロスに、フェノール樹脂と、熱膨張係数が負のガラス
セラミック粉体と、エポキシ樹脂を含浸した成形材料が
好ましい。この成形材料は、キャピラリ４およびグリン
レンズ１との粘着性が良好な材料である。The protective tube 13 is made of a molding material in which a reinforcing material such as glass fiber or carbon fiber is impregnated with a thermosetting resin such as an uncured epoxy resin or an unsaturated polyester resin. When this molding material is heated and cured, it exhibits excellent mechanical strength, moisture permeability and weather resistance as a reinforcing member of the optical multiplexer / demultiplexer body 10, and has a coefficient of thermal expansion in the operating temperature range of the optical multiplexer / demultiplexer 20. Becomes almost zero. Specifically, this molding material is preferably a molding material in which a carbon fiber cloth is impregnated with a phenol resin, a glass ceramic powder having a negative coefficient of thermal expansion, and an epoxy resin. This molding material has good adhesiveness to the capillary 4 and the green lens 1.
【００１０】このように、光合分波器本体１０を上記の
ような成形材料によって包み込み、加熱すると、成形材
料は光合分波器本体１０の外周に密着して硬化し、光合
分波器本体１０に密着した保護チューブ１３になる。こ
のような保護チューブ１３を用いることにより、光合分
波器本体１０の補強部材を小型化することができ、取り
扱いも容易であるので低コストで製造することができ
る。また、光合分波器２０は曲げ応力に対する耐性など
の機械的強度に優れ、耐透湿性にも優れた構造となり、
外部環境に影響されて屈折率が変化することがなくな
る。したがって、伝送損失が増加することもなくなる。As described above, when the optical multiplexer / demultiplexer main body 10 is wrapped by the above-described molding material and heated, the molding material is brought into close contact with the outer periphery of the optical multiplexer / demultiplexer main body 10 and is cured. The protective tube 13 comes into close contact with the protective tube 13. By using such a protective tube 13, the reinforcing member of the optical multiplexer / demultiplexer main body 10 can be reduced in size and easy to handle, so that it can be manufactured at low cost. In addition, the optical multiplexer / demultiplexer 20 has a structure that is excellent in mechanical strength such as resistance to bending stress and also has excellent moisture permeability.
The refractive index does not change due to the external environment. Therefore, transmission loss does not increase.
【００１１】また、本例で用いられる０．２５ピッチグ
リンレンズ１は、アルカリガラスなどからなり、径方
向、軸方向に屈折率分布を持つものである。グリンレン
ズ１は円柱状で、キャピラリ４との接合面は、斜めに形
成されており、寸法は外径１．８ｍｍ、長さ４．７ｍｍ
となっている。グリンレンズ１の外径は、この他に１．
０ｍｍ、２．０ｍｍから適宜選択可能である。また、グ
リンレンズ１の長さは、この他に４．６ｍｍ、４．８ｍ
ｍから適宜選択可能である。このように寸法が適宜選択
可能であるのは、０．２５ピッチに対応する長さが、グ
リンレンズ１の屈折率分布や材質などによって異なるた
めである。The 0.25 pitch green lens 1 used in this embodiment is made of alkali glass or the like and has a refractive index distribution in a radial direction and an axial direction. The green lens 1 has a cylindrical shape, and a joining surface with the capillary 4 is formed obliquely, and has dimensions of an outer diameter of 1.8 mm and a length of 4.7 mm.
It has become. The outside diameter of the green lens 1 is also 1.
It can be appropriately selected from 0 mm and 2.0 mm. In addition, the length of the green lens 1 is 4.6 mm and 4.8 m.
m can be appropriately selected. The reason why the dimensions can be appropriately selected is that the length corresponding to the 0.25 pitch differs depending on the refractive index distribution, the material, and the like of the green lens 1.
【００１２】また、誘電体多層膜２は、一方のグリンレ
ンズ１のキャピラリ４との接合面と反対側の面に、例え
ば、シリカ（ＳｉＯ2）やチタニア（ＴｉＯ2）などの屈
折率の異なる薄膜を蒸着により積層したものであって、
材質や厚さなどは光の波長などによって適宜選択する。
この例においてはＳｉＯ2とＴａ2Ｏ5からなる薄膜を交
互に積層した厚さ約２０μｍ、１．３ｍｍ×１．３ｍｍ
のものを用いている。The dielectric multilayer film 2 has a different refractive index, such as silica (SiO 2 ) or titania (TiO 2 ), on the surface of one of the green lenses 1 on the side opposite to the bonding surface with the capillary 4. A thin film laminated by vapor deposition,
The material and thickness are appropriately selected according to the wavelength of light and the like.
In this example, a thin film composed of SiO 2 and Ta 2 O 5 is alternately laminated and has a thickness of about 20 μm, 1.3 mm × 1.3 mm.
Is used.
【００１３】また、光ファイバ素線３は、シングルモー
ド光ファイバまたは偏波保持光ファイバのどちらであっ
てもよく、これらを組合わせて用いてもよい。シングル
モード光ファイバは、石英ガラスなどからなる光ファイ
バ裸線の上に、紫外線硬化型樹脂などからなる被覆層が
設けられた構造となっている。また、偏波保持光ファイ
バは、石英ガラスなどからなる光ファイバ裸線を挟むよ
うに、Ｂａ2Ｏ3をドープしたシリカガラスなどからなる
応力付与部材を配置し、これらの上に紫外線硬化型樹脂
などからなる被覆層が設けられた構造となっている。こ
の例において、光ファイバ裸線３ａの外径は１２５μ
ｍ、光ファイバ素線３の外径は２５０μｍである。The optical fiber 3 may be a single mode optical fiber or a polarization maintaining optical fiber, or a combination thereof. The single mode optical fiber has a structure in which a coating layer made of an ultraviolet curable resin or the like is provided on an optical fiber bare wire made of quartz glass or the like. The polarization-maintaining optical fiber has a stress applying member made of silica glass or the like doped with Ba 2 O 3 so as to sandwich the bare optical fiber made of quartz glass or the like. It has a structure in which a coating layer made of such as is provided. In this example, the outer diameter of the bare optical fiber 3a is 125 μm.
m, the outer diameter of the optical fiber 3 is 250 μm.
【００１４】キャピラリ４は、Ｂ2Ｏ5を含有する石英、
ホウケイ酸ガラスなどのガラスからなる円柱状で、グリ
ンレンズ１との接合面は斜めに形成されており、寸法は
外径１．８ｍｍ、長さ１０ｍｍとなっている。また、細
孔４ａは、キャピラリ４の中心部に、キャピラリ４を貫
通するように形成されている。細孔４ａの開口部の形状
は、正方形、長方形、菱形などの多角形状または円形で
あり、寸法が０．１２６〜０．２１７ｍｍ×０．２１４
〜０．２５２ｍｍ程度となっている。The capillary 4 is made of quartz containing B 2 O 5 ,
It has a cylindrical shape made of glass such as borosilicate glass, and has a diagonal joint surface with the green lens 1. The dimensions are 1.8 mm in outer diameter and 10 mm in length. Further, the pores 4 a are formed at the center of the capillary 4 so as to penetrate the capillary 4. The shape of the opening of the pore 4a is a polygonal shape such as a square, a rectangle, a rhombus, or a circle, and the dimension is 0.126 to 0.217 mm × 0.214.
It is about 0.252 mm.
【００１５】また、本例で用いられる接着剤４ｂとして
は、ガラス転移温度が低く、硬化後の硬度が低く、硬化
収縮率が小さいものが好ましい。すなわち、光合分波器
２０の使用温度範囲において柔軟な材質のものが好まし
く、例えば、エポキシ系接着剤、アクリレート系接着
剤、シリコン系接着剤などが好ましい。このように光合
分波器２０の使用温度範囲において柔軟な接着剤４ｂを
用いれば、光ファイバ素線３は、温度変化に伴う接着剤
４ｂの応力変化の影響を受けにくくなり、結果として、
光合分波器２０の偏波クロストーク特性などが劣化する
ことがない。The adhesive 4b used in this embodiment is preferably one having a low glass transition temperature, a low hardness after curing, and a small curing shrinkage. That is, a material that is flexible in the operating temperature range of the optical multiplexer / demultiplexer 20 is preferable, and for example, an epoxy-based adhesive, an acrylate-based adhesive, and a silicon-based adhesive are preferable. If the flexible adhesive 4b is used in the operating temperature range of the optical multiplexer / demultiplexer 20 as described above, the optical fiber 3 becomes less affected by the stress change of the adhesive 4b due to the temperature change.
The polarization crosstalk characteristics of the optical multiplexer / demultiplexer 20 do not deteriorate.
【００１６】なお、本例の光合分波器２０の入射用ポー
ト、反射用ポート、出射用のポート数は、それぞれ少な
くとも１つ以上設けられていれば特に限定せず、必要に
応じて２つ以上設けることもできる。なお、光合分波器
２０は、ひとつのポートに複数の信号光の合波光を入射
し、複数のポートのそれぞれから信号光を出射する場合
は光分波器として働き、反対に複数のポートのそれぞれ
から信号光を入射し、ひとつのポートからこれらの信号
光の合波光を出射する場合は光合波器として働くもので
ある。The number of the input port, the reflection port, and the output port of the optical multiplexer / demultiplexer 20 of the present embodiment is not particularly limited as long as at least one or more ports are provided. The above can also be provided. The optical multiplexer / demultiplexer 20 functions as an optical demultiplexer when multiplexed light of a plurality of signal lights enters one port and emits signal light from each of the plurality of ports. In the case where the signal light enters from each of them and the combined light of these signal lights is emitted from one port, it works as an optical multiplexer.
【００１７】以下、図１を利用して、具体例を示す。保
護チューブ１３となる成形材料として、炭素繊維−エポ
キシ樹脂含浸シート（商品名；９１３Ｅｐｏｘｙ ｍａ
ｔｒｉｘ、Ｈｅｘｃｅｌ Ｃｏｍｐｏｓｉｔｅｓ社製）
を用いて、光合分波器２０を作製した。このものは、炭
素繊維に、フェノール樹脂と、熱膨張係数が負のガラス
セラミック粉体と、エポキシ樹脂を含浸した材料で、抗
張力性、機械的強度に優れ、軽量で、可撓性の材料であ
る。光合分波器本体１０を炭素繊維−エポキシ樹脂含浸
シートで包み込み、温度１２０℃、圧力７×１０5Ｐａ
で１時間保持し、このシートを硬化し、このシートと光
合分波器本体１０を密着させて保護チューブとした。得
られた光合分波器２０は、長さ４０ｍｍ、外径５ｍｍで
あり、優れた機械的特性、耐透湿性、耐候性を示した。A specific example will be described below with reference to FIG. As a molding material for forming the protective tube 13, a carbon fiber-epoxy resin impregnated sheet (trade name: 913 Epoxy ma)
trix, manufactured by Hexcel Composites)
Was used to fabricate the optical multiplexer / demultiplexer 20. This is a material in which carbon fiber is impregnated with phenolic resin, glass ceramic powder with a negative coefficient of thermal expansion, and epoxy resin.It is excellent in tensile strength, mechanical strength, lightweight, and flexible. is there. The optical multiplexer / demultiplexer body 10 is wrapped with a carbon fiber-epoxy resin impregnated sheet, at a temperature of 120 ° C. and a pressure of 7 × 10 5 Pa.
The sheet was cured for 1 hour, and the sheet and the optical multiplexer / demultiplexer main body 10 were brought into close contact with each other to form a protective tube. The obtained optical multiplexer / demultiplexer 20 had a length of 40 mm and an outer diameter of 5 mm, and exhibited excellent mechanical properties, moisture resistance, and weather resistance.
【００１８】[0018]
【発明の効果】以上説明したように、本発明の光合分波
器は、２つ以上のコリメータレンズの間に、誘電体多層
膜が挿入され、該２つ以上のコリメータレンズの長手方
向の誘電体多層膜と接合していない側のそれぞれにキャ
ピラリを接合し、前記キャピラリ内に形成された細孔に
光ファイバを挿入してなる光合分波器本体が保護チュー
ブに収容されてなり、前記保護チューブは、繊維状補強
材に未硬化状態の熱硬化性樹脂を含浸してなる成形材料
で、前記光合分波器本体を包み、加熱、硬化したもので
あるから、密閉構造の光合分波器を容易に得ることがで
きる。また、繊維状補強材に未硬化状態の熱硬化性樹脂
を含浸してなる成形材料を用いることにより、光合分波
器の補強部材を小型化することができる。また、この成
形材料は、取り扱いが容易であるので低コストで光合分
波器を製造することができる。さらに、本発明の光合分
波器は、曲げ応力に対する耐性などの機械的強度、耐透
湿性、耐候性などに優れ、外部環境に影響され難いの
で、光の伝送損失が増加することがない。また、本発明
の光合分波器に偏波保持光ファイバを用いた場合、安定
した偏波クロストーク特性が得られる。As described above, in the optical multiplexer / demultiplexer according to the present invention, a dielectric multilayer film is inserted between two or more collimator lenses, and the dielectric in the longitudinal direction of the two or more collimator lenses. The optical multiplexer / demultiplexer body obtained by joining a capillary to each of the sides not joined to the body multilayer film and inserting an optical fiber into a pore formed in the capillary is housed in a protective tube, and the protection The tube is a molding material obtained by impregnating a fibrous reinforcing material with a thermosetting resin in an uncured state, wraps the optical multiplexer / demultiplexer body, and is heated and cured. Can be easily obtained. In addition, by using a molding material obtained by impregnating a fibrous reinforcing material with an uncured thermosetting resin, the reinforcing member of the optical multiplexer / demultiplexer can be downsized. Also, since this molding material is easy to handle, an optical multiplexer / demultiplexer can be manufactured at low cost. Furthermore, the optical multiplexer / demultiplexer of the present invention is excellent in mechanical strength such as resistance to bending stress, moisture permeability, weather resistance, and the like, and is hardly affected by an external environment, so that light transmission loss does not increase. When a polarization maintaining optical fiber is used in the optical multiplexer / demultiplexer of the present invention, stable polarization crosstalk characteristics can be obtained.
【図１】 本発明の光合分波器の補強構造の一例を示す
図である。FIG. 1 is a diagram showing an example of a reinforcing structure of an optical multiplexer / demultiplexer according to the present invention.
【図２】 従来の光合分波器の補強構造を示す図であ
る。FIG. 2 is a diagram illustrating a reinforcing structure of a conventional optical multiplexer / demultiplexer.
１…グリンレンズ、２…誘電体多層膜、３…光ファイバ
素線、４…キャピラリ、１０…光合分波器本体、１３…
保護チューブ、２０…光合分波器DESCRIPTION OF SYMBOLS 1 ... Green lens, 2 ... Dielectric multilayer film, 3 ... Optical fiber wire, 4 ... Capillary, 10 ... Optical multiplexer / demultiplexer main body, 13 ...
Protective tube, 20 ... Optical multiplexer / demultiplexer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浅野 健一郎 千葉県佐倉市六崎1440番地 株式会社フジ クラ佐倉事業所内 (72)発明者 松浦 隆明 千葉県佐倉市六崎1440番地 株式会社フジ クラ佐倉事業所内 (72)発明者 百津 仁博 千葉県佐倉市六崎1440番地 株式会社フジ クラ佐倉事業所内 Ｆターム(参考） 2H037 BA32 BA34 CA10 CA16 CA19 DA37 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenichiro Asano 1440, Mukurosaki, Sakura City, Chiba Prefecture Inside Fujikura Sakura Office (72) Inventor Takaaki Matsuura 1440, Musaki, Sakura City, Chiba Prefecture Inside Fujikura Sakura Office ( 72) Inventor Yoshihiro Momitsu 1440, Murosaki, Sakura City, Chiba Prefecture Fujikura Co., Ltd. Sakura Plant F-term (reference) 2H037 BA32 BA34 CA10 CA16 CA19 DA37
Claims (1)
電体多層膜が挿入され、該２つ以上のコリメータレンズ
の長手方向の誘電体多層膜と接合していない側のそれぞ
れにキャピラリを接合し、前記キャピラリ内に形成され
た細孔に光ファイバを挿入してなる光合分波器本体が保
護チューブに収容されてなり、前記保護チューブは、繊
維状補強材に未硬化状態の熱硬化性樹脂を含浸してなる
成形材料で、前記光合分波器本体を包み、加熱、硬化し
たものであることを特徴とする光合分波器。1. A dielectric multilayer film is inserted between two or more collimator lenses, and a capillary is bonded to each of the two or more collimator lenses on the side not bonded to the dielectric multilayer film in the longitudinal direction. An optical multiplexer / demultiplexer main body formed by inserting an optical fiber into a pore formed in the capillary is accommodated in a protective tube, and the protective tube is an uncured thermosetting material in a fibrous reinforcing material. An optical multiplexer / demultiplexer, wherein the optical multiplexer / demultiplexer is a molding material that is impregnated with a resin, and is wrapped around the optical multiplexer / demultiplexer, heated and cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000383492A JP4233747B2 (en) | 2000-12-18 | 2000-12-18 | Optical multiplexer / demultiplexer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000383492A JP4233747B2 (en) | 2000-12-18 | 2000-12-18 | Optical multiplexer / demultiplexer and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002182061A true JP2002182061A (en) | 2002-06-26 |
| JP4233747B2 JP4233747B2 (en) | 2009-03-04 |
Family
ID=18851140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000383492A Expired - Fee Related JP4233747B2 (en) | 2000-12-18 | 2000-12-18 | Optical multiplexer / demultiplexer and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4233747B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7104700B2 (en) | 2002-03-21 | 2006-09-12 | Samsung Electronics, Co., Ltd. | Gain flattening filter and gain flattened optical fiber amplifier employing the same |
| US7978418B2 (en) | 2006-06-12 | 2011-07-12 | Nippon Electric Glass Co., Ltd. | Optical device and lens assembly |
| US8182159B2 (en) | 2006-12-27 | 2012-05-22 | Nippon Electric Glass Co., Ltd. | Lens assembly, optical device, optical axis adjusting method for an optical device |
| US8279542B2 (en) | 2007-12-11 | 2012-10-02 | Nippon Electric Glass Co., Ltd. | Optical device and lens assembly |
-
2000
- 2000-12-18 JP JP2000383492A patent/JP4233747B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7104700B2 (en) | 2002-03-21 | 2006-09-12 | Samsung Electronics, Co., Ltd. | Gain flattening filter and gain flattened optical fiber amplifier employing the same |
| US7978418B2 (en) | 2006-06-12 | 2011-07-12 | Nippon Electric Glass Co., Ltd. | Optical device and lens assembly |
| US8182159B2 (en) | 2006-12-27 | 2012-05-22 | Nippon Electric Glass Co., Ltd. | Lens assembly, optical device, optical axis adjusting method for an optical device |
| US8279542B2 (en) | 2007-12-11 | 2012-10-02 | Nippon Electric Glass Co., Ltd. | Optical device and lens assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4233747B2 (en) | 2009-03-04 |
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