JPS62299918A - Method for fixing polarized wave maintaining optical fiber - Google Patents
Method for fixing polarized wave maintaining optical fiberInfo
- Publication number
- JPS62299918A JPS62299918A JP61144225A JP14422586A JPS62299918A JP S62299918 A JPS62299918 A JP S62299918A JP 61144225 A JP61144225 A JP 61144225A JP 14422586 A JP14422586 A JP 14422586A JP S62299918 A JPS62299918 A JP S62299918A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- polarization
- maintaining optical
- fiber
- polarized wave
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 26
- 230000001070 adhesive effect Effects 0.000 claims abstract description 26
- 230000010287 polarization Effects 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 10
- 230000003287 optical effect Effects 0.000 description 8
- 230000001902 propagating effect Effects 0.000 description 7
- 238000005253 cladding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000025174 PANDAS Diseases 0.000 description 1
- 208000021155 Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infection Diseases 0.000 description 1
- 240000000220 Panda oleosa Species 0.000 description 1
- 235000016496 Panda oleosa Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3812—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres having polarisation-maintaining light guides
-
- 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
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
- G02B6/3861—Adhesive bonding
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
産業上の利用分野
本発明は、偏波保持光ファイバの固定方法に関する。よ
り詳細には、本発明は、その固定に際して、偏波保持光
ファイバの伝播光のクロストークを劣化することなく固
定することのできる、偏波保持光ファイバの新規な固定
方法に関する。Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a method for fixing a polarization maintaining optical fiber. More specifically, the present invention relates to a novel method for fixing a polarization-maintaining optical fiber, which can fix the crosstalk of propagating light in the polarization-maintaining optical fiber without deteriorating it during the fixation.
従来の技術
光ファイバのコアは、通常、円形の断面を有し、従って
、ファイバの屈曲等の僅かな外乱によっても、その内部
を伝播する光の偏波面が回転してしまう。この現象は、
たとえ単一モード光ファイバといえども例外ではなく、
例えばコヒーレント光伝送方式による通信用光ファイバ
あるいは光フアイバ応用計測器等のように、ファラデー
効果など伝播光の偏波面を意識した使用においては都合
が悪い。BACKGROUND OF THE INVENTION The core of an optical fiber typically has a circular cross section, and therefore even a slight disturbance such as bending of the fiber will rotate the plane of polarization of light propagating therein. This phenomenon is
Even if it is a single mode optical fiber, it is no exception.
For example, it is inconvenient for use in communication optical fibers based on coherent optical transmission systems or optical fiber applied measuring instruments, where the plane of polarization of propagating light, such as the Faraday effect, is taken into account.
そこで、クラッド内の、コアに対して対称な位置に、例
えばクラッドとは熱膨張率の異なる材料による応力付与
部材を埋設してコアの外周に沿って異なる圧力分布を付
与し、コア断面上で直交する２つ方向で異なった屈折率
を持たせることにより、互いに直角な２つのモードの間
に大きな位相速度差を発生させ、結果的に特定の偏波を
保持することのできる応力複屈折型偏波保持光コアイノ
くが開発されている。Therefore, a stress-applying member made of a material with a different coefficient of thermal expansion than the cladding is embedded in the cladding at a symmetrical position with respect to the core to apply a different pressure distribution along the outer periphery of the core. By having different refractive indices in two orthogonal directions, a stress birefringence type generates a large phase velocity difference between two mutually orthogonal modes, and as a result, can maintain a specific polarization. A polarization-maintaining optical core has been developed.
この応力複屈折型の偏波保持光ファイバを、例えば光フ
アイバコネクタに用いられているフェル−ルに固定する
際には、固定すべき偏波保持光ファイバの外径より数μ
ｍ大きい内径の金属、ガラスもしくはセラミックからな
るキャピラリを形成したキャピラリ部材に該光ファイバ
の裸線を挿入し、更に、キャピラリと光コアイノくとの
間隙に接着剤を注入して硬化することによって固定して
いた。When fixing this stress-birefringent polarization-maintaining optical fiber to a ferrule used in an optical fiber connector, for example, it is necessary to
The bare optical fiber is inserted into a capillary member made of metal, glass, or ceramic with a large inner diameter, and then fixed by injecting an adhesive into the gap between the capillary and the optical core and curing it. Was.
発明が解決しようとする問題点
第２図は、クラッド層に１対の円形断面の応力付与部材
を埋設したパンダファイバと呼ばれる応力複屈折型の偏
波保持光コアイノくを、従来の固定方法に従って固定し
た様子を断面図にて示すものである。Problems to be Solved by the Invention Figure 2 shows how a stress-birefringent polarization-maintaining optical core called a panda fiber, which has a pair of stress-applying members with a circular cross section embedded in the cladding layer, is fixed in accordance with the conventional fixing method. A sectional view showing how it is fixed.
この応力複屈性型偏波保持光ファイ／（６は、コアｌを
包囲するクラッド２内に、応力付与部材３ａ、３ｂを備
え、応力付与部材３ａおよび３ｂの中心を結ぶ方向とこ
の方向に直角な方向とでコア１に対して異なる応力を付
与することにより、コア１に複屈折特性を発生させてい
る。This stress-birefringent polarization-maintaining optical fiber/(6 is equipped with stress-applying members 3a and 3b in the cladding 2 surrounding the core l, and has stress-applying members 3a and 3b in the direction connecting the centers of the stress-applying members 3a and 3b and in this direction. Birefringence characteristics are generated in the core 1 by applying different stress to the core 1 in the orthogonal direction.
またキャピラリ部材４は、一般に金属、ガラスあるいは
セラミックス等によって作製され、中心に固定すべきフ
ァイバよりも数μｍ程度大きな直径を有する貫通孔を備
えた円盤状あるいは円柱状の部材である。The capillary member 4 is generally made of metal, glass, ceramics, or the like, and is a disc-shaped or cylindrical member having a through hole in the center having a diameter several μm larger than the fiber to be fixed.
第２図に示すように、偏波保持光コアイノく６はキャピ
ラリ部材６の中心に穿たれたキャピラリに挿入され、フ
ァイバ６とキャピラリ部材４との間隙に注入されたエポ
キシ樹脂を主成分とする接着剤５により固着されている
。As shown in FIG. 2, the polarization-maintaining optical core 6 is inserted into a capillary bored in the center of the capillary member 6, and contains epoxy resin as its main component, which is injected into the gap between the fiber 6 and the capillary member 4. It is fixed with adhesive 5.
ところで、第２図にも示されるよう１乙上述のようにし
て固定されたファイバ６は、クラッド２の外径とキャピ
ラリの内径との間にあるギャップのために、実際にはこ
のキャピラリ内の何れかの位置に偏って固定されること
が避けられない。しかしながら、このように接着剤５の
層の厚さが位置によって異なると、接着剤５の硬化時の
体積変化あるいは硬化後においても周囲の部材との膨張
率差等により、偏波保持光ファイバの外周に沿って不規
則な側圧分布が生じる。By the way, as shown in FIG. 2, the fiber 6 fixed in the above-described manner is not actually inside the capillary due to the gap between the outer diameter of the cladding 2 and the inner diameter of the capillary. It is unavoidable that it will be fixed in one position. However, if the thickness of the layer of adhesive 5 differs depending on the position, the polarization maintaining optical fiber may be Irregular lateral pressure distribution occurs along the outer circumference.
応力複屈折型偏波保持光ファイバにおける偏波保持作用
の成立からも明らかなように、コアに付与される側圧の
変化は、コアに加わる応力の作用方向の屈折率の変化と
して顕れるので、上述のような接着剤によるコアへの不
規則な側圧は、偏波保持光ファイバの偏波保持特性を大
幅に劣化する。As is clear from the establishment of the polarization-maintaining effect in a stress-birefringent polarization-maintaining optical fiber, changes in the lateral pressure applied to the core appear as changes in the refractive index in the direction of the stress applied to the core. Irregular lateral pressure on the core due to adhesives, such as, significantly degrades the polarization-maintaining properties of polarization-maintaining optical fibers.
従って、従来の固定方法に従うと、偏波保持光ファイバ
は、単に固定されたことによってその偏波保持特性を大
きく損なわれることになる。Therefore, if the conventional fixing method is followed, the polarization maintaining characteristic of the polarization maintaining optical fiber will be greatly impaired simply by being fixed.
そこで、本発明は偏波保持光ファイバをキャピラリに固
定しても、偏波特性が劣化することのない固定法を提供
することを目的としている。Therefore, an object of the present invention is to provide a method of fixing a polarization-maintaining optical fiber to a capillary without deteriorating its polarization characteristics.
問題点を解決するための手段
そこで、本発明に従い、固定すべき偏波保持光ファイバ
の外径よりも僅かに大きい内径を有するキャピラリに前
記偏波保持光ファイバの裸線端部を挿入し、前記キャピ
ラリの内面と前記固定すべき偏波保持光ファイバの外周
との間隙に接着剤を充填して硬化する偏波保持光ファイ
バの固定方法であって、該接着剤と該偏波保持光ファイ
バとの接触領域の長さが、該偏波保持光ファイバの軸方
向で０．１ｍｍ以上、ＩＩＩＩＩＢ以下の範囲にあるこ
とを特徴とする偏波保持光ファイバの固定方法が提供さ
れる。Means for Solving the Problem Therefore, according to the present invention, the bare end of the polarization-maintaining optical fiber is inserted into a capillary having an inner diameter slightly larger than the outer diameter of the polarization-maintaining optical fiber to be fixed, A method for fixing a polarization-maintaining optical fiber, the method comprising: filling an adhesive into a gap between the inner surface of the capillary and the outer periphery of the polarization-maintaining optical fiber to be fixed, and curing the polarization-maintaining optical fiber; Provided is a method for fixing a polarization-maintaining optical fiber, characterized in that the length of the contact area with the polarization-maintaining optical fiber is in the range of 0.1 mm or more and IIIB or less in the axial direction of the polarization-maintaining optical fiber.
罫月
本発明に従う偏波保持光ファイバの固定方法は、偏波保
持光ファイバの固定に際して、接着剤と偏波保持光ファ
イバとの接触長さが１ ｍｍを越えないようにすること
に主要な特徴がある。The method of fixing a polarization-maintaining optical fiber according to the present invention is mainly concerned with ensuring that the contact length between the adhesive and the polarization-maintaining optical fiber does not exceed 1 mm when fixing the polarization-maintaining optical fiber. It has characteristics.
即ち、従来の固定方法において発生する偏波保持特性の
劣化は接着剤からの応力付与によるものであるから、固
定すべき偏波保持光ファイバと接着剤との接触面積が減
少すれば、接着剤による不規則な側圧が減少することが
考えられる。In other words, the deterioration of polarization maintaining properties that occurs in conventional fixing methods is due to the stress applied by the adhesive, so if the contact area between the polarization maintaining optical fiber to be fixed and the adhesive is reduced, the adhesive It is thought that the irregular lateral pressure due to this decreases.
この点、従来技術の固定に用いられていたフェルールの
キャピラリの長さは約７ｍｍに及び、この長さに亘って
偏波保持光ファイバが接着剤から受ける影響は極めて大
きかった。In this regard, the length of the capillary of the ferrule used for fixing in the prior art was about 7 mm, and the influence of the adhesive on the polarization maintaining optical fiber over this length was extremely large.
そこで、本発明者等は、偏波保持光ファイバが接着剤か
ら受ける応力を極力低減すべく、各種検討を重ねた結果
、接着剤により偏波保持光ファイバを固定する長さを１
ｏｎ以下とすることによって、接着剤が偏波保持作用
に及ぼす影響を実質的に解消し得ることを見出した。Therefore, in order to reduce the stress that the polarization-maintaining optical fiber receives from the adhesive as much as possible, the inventors of the present invention have conducted various studies, and as a result, the length of the polarization-maintaining optical fiber fixed with the adhesive has been reduced to 1.
It has been found that the influence of the adhesive on the polarization-maintaining effect can be substantially eliminated by setting it to below on.
但し、接着剤によって固定する長さが０．１ｍｍ未渦に
なると、接着強度が小さくなり、偏波保持光ファイバを
固定することが困難となるので、接着剤による固定長さ
は０．１印以上１ ＋ｎ＋ｎ以下の範囲とした。However, if the length fixed with the adhesive becomes 0.1 mm, the adhesive strength will decrease and it will be difficult to fix the polarization maintaining optical fiber, so the length fixed with the adhesive should be 0.1 mm. The range is 1+n+n.
実施例
第１図は、本発明による固定方法に従って偏波保持光フ
ァイバを固定した様子を軸断面で示したものである。Embodiment FIG. 1 is an axial cross-sectional view showing how a polarization-maintaining optical fiber is fixed according to the fixing method according to the present invention.
すわなち、フェルール９の端部に長さ１ｍｍのキャピラ
リを備えたキャピラリ部材８を取り付け、このキャピラ
リ内に偏波保持光ファイバの裸線６を挿入した後、エポ
キシ樹脂接着剤によりを固定した。尚、このとき、フェ
ルール９の内部には、偏波保持光ファイバ８の被覆の端
部が挿入されている。That is, a capillary member 8 having a capillary with a length of 1 mm was attached to the end of the ferrule 9, and after inserting the bare wire 6 of the polarization maintaining optical fiber into this capillary, it was fixed with an epoxy resin adhesive. . Note that at this time, the end of the coating of the polarization-maintaining optical fiber 8 is inserted into the inside of the ferrule 9.
固定した偏波保持光ファイバはΔ−０，３％、２ａ−８
ｐｍ、２ ｂ＝ １２５μｍ、Ｂ＝ ３．５ｘｌＯ−’
のパンダファイバと呼ばれる応力複屈折型偏波保持光フ
ァイバであり、また、用いたフェルール９はステンレス
製で、その端部近傍にセラミック製のキャピラリ部材８
を収納した。このキャピラリ部材の貫通孔即ちキャピラ
リの内径は１２７〜１２８μｍの範囲であり、キャピラ
リの長さは１ ｍｍとした。Fixed polarization maintaining optical fiber is Δ-0.3%, 2a-8
pm, 2b=125μm, B=3.5xlO-'
The ferrule 9 used is made of stainless steel, and a capillary member 8 made of ceramic is attached near the end of the ferrule 9.
was stored. The through hole of this capillary member, that is, the inner diameter of the capillary was in the range of 127 to 128 μm, and the length of the capillary was 1 mm.
これらの部材を用いて、従来の方法と同様に、偏波保持
光ファイバ６をキャピラリ部材８に挿入し、エポキシ系
樹脂による接着剤で固定した後、図中の右側端面を研磨
して、偏波保持光ファイバ７を伝播した光が射出される
ように仕上げた。Using these members, the polarization-maintaining optical fiber 6 is inserted into the capillary member 8 in the same manner as in the conventional method, and after being fixed with an epoxy resin adhesive, the right end face in the figure is polished and polarized. It is finished so that the light propagated through the wave-maintaining optical fiber 7 is emitted.
また、比較のために、同じ材質と寸法で、キャピラリの
長さのみを変えたキャピラリ部材を作製し、これを用い
て偏波保持光ファイバを固定して前述の本発明の方法に
従う偏波保持光ファイバと共に、固定部を経た伝播光の
クロストーク量の変化を測定した。For comparison, a capillary member with the same material and dimensions but with different capillary lengths was fabricated, and a polarization-maintaining optical fiber was fixed using this to maintain polarization according to the method of the present invention described above. We measured changes in the amount of crosstalk of propagating light through the fixed part as well as the optical fiber.
即ち、キャピラリの長さｌを０〜１０ｍｍまでｌ ｍｍ
毎に変化したキャピラリ部材に各々偏波保持光ファイバ
を固定し、波長１．３μｍの光を注入して、固定部を経
た後に射出されたこの光を測定した。That is, the length l of the capillary is l mm from 0 to 10 mm.
A polarization-maintaining optical fiber was fixed to each capillary member that was changed each time, light with a wavelength of 1.3 μm was injected, and the light emitted after passing through the fixed part was measured.
この射出光のクロストーク量をグラフにして第３図に示
す。The amount of crosstalk of this emitted light is shown in a graph in FIG.
第３図に示すように、キャピラリの長さがｌ ＋＋＋＋
ｎを越えると急激にクロストークが増大する一方、１ｆ
ｆｌＩ１１のものについては、固定しない偏波保持光フ
ァイバのクロストーク両と実質的に同じ値を２回の測定
に亘って示し、実用上殆どクロストークがないといえる
までの良好な結果が得られた。As shown in Figure 3, the length of the capillary is l ++++
Crosstalk increases rapidly when exceeding n, while 1f
For flI11, the crosstalk value of the unfixed polarization-maintaining optical fiber was substantially the same in two measurements, and the results were so good that it can be said that there is almost no crosstalk in practical use. Ta.
発明の効果
以上詳述の如く、本発明の固定方法に従って固定された
偏波保持光ファイバでは、その伝播光の偏波保持特性が
維持され、かくして偏波保持光ファイバを通常のコネク
タ部品にも容易に適合させることができる。Effects of the Invention As detailed above, in the polarization-maintaining optical fiber fixed according to the fixing method of the present invention, the polarization-maintaining characteristic of the propagating light is maintained, and thus the polarization-maintaining optical fiber can be used as an ordinary connector component. Can be easily adapted.
従って、コヒーレント光伝送方式による通信用光ファイ
バあるいは光フアイバ応用計測器等のように、伝播光の
偏波面を意識した偏波保持光ファイバの利用の拡大を図
ることができる。Therefore, it is possible to expand the use of polarization-maintaining optical fibers that are conscious of the polarization plane of propagating light, such as communication optical fibers using coherent optical transmission systems or optical fiber-applied measuring instruments.
このように、本発明に従って、コヒーレント光の利用と
いう光伝送の分野の新たな局面が展開される。Thus, according to the present invention, a new aspect of the field of optical transmission is developed: the use of coherent light.
第１図は、本発明に従う実施例を説明するものであり、
応力付与複屈折型偏波保持光ファイバをフェルール内に
固定した様子を軸方向の断面図で示すもであり、
第２図は、従来の光ファイバの固定方法を、その軸に垂
直な断面にて示した図であり、第３図は、キャピラリの
長さを変化して測定した伝播光のクロストーク量の変化
を示すグラフである。
（主な参照番号）
■・・コア、
２・・クラッド、
３・・応力付与部材、
４．８・・キャピラリ部材、
５・・接着剤、
６・・偏波保持光ファイバ、
７・・被覆、
９・・フェルールFIG. 1 illustrates an embodiment according to the invention,
This is an axial cross-sectional view showing how a stress-applied birefringent polarization-maintaining optical fiber is fixed in a ferrule. FIG. 3 is a graph showing changes in the amount of crosstalk of propagating light measured by changing the length of the capillary. (Main reference numbers) ■... Core, 2... Cladding, 3... Stress applying member, 4.8... Capillary member, 5... Adhesive, 6... Polarization maintaining optical fiber, 7... Coating , 9...ferrule
Claims (2)
に大きい内径を有するキャピラリに前記偏波保持光ファ
イバの裸線端部を挿入し、前記キャピラリの内面と前記
固定すべき偏波保持光ファイバの外周との間隙に接着剤
を充填して硬化する偏波保持光ファイバの固定方法であ
って、 該接着剤と該偏波保持光ファイバとの接触領域の長さが
、該偏波保持光ファイバの軸方向で０．１ｍｍ以上、１
ｍｍ以下の範囲にあることを特徴とする偏波保持光ファ
イバの固定方法。(1) Insert the bare end of the polarization-maintaining optical fiber into a capillary having an inner diameter slightly larger than the outer diameter of the polarization-maintaining optical fiber to be fixed, and connect the inner surface of the capillary with the polarization to be fixed. A method for fixing a polarization-maintaining optical fiber in which a gap with the outer periphery of the polarization-maintaining optical fiber is filled with an adhesive and cured, the length of the contact area between the adhesive and the polarization-maintaining optical fiber being equal to the polarization-maintaining optical fiber. 0.1 mm or more in the axial direction of the wave-maintaining optical fiber, 1
A method for fixing a polarization-maintaining optical fiber, characterized in that the polarization-maintaining optical fiber is in the range of less than mm.
ックスにより作製されたキャピラリ部材に穿たれた貫通
孔であることを特徴とする特許請求の範囲第１項記載の
偏波保持光ファイバの固定方法。(2) The method for fixing a polarization-maintaining optical fiber according to claim 1, wherein the capillary is a through hole bored in a capillary member made of metal, glass, or ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61144225A JPH0750216B2 (en) | 1986-06-20 | 1986-06-20 | Polarization-maintaining optical fiber fixing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61144225A JPH0750216B2 (en) | 1986-06-20 | 1986-06-20 | Polarization-maintaining optical fiber fixing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62299918A true JPS62299918A (en) | 1987-12-26 |
| JPH0750216B2 JPH0750216B2 (en) | 1995-05-31 |
Family
ID=15357151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61144225A Expired - Fee Related JPH0750216B2 (en) | 1986-06-20 | 1986-06-20 | Polarization-maintaining optical fiber fixing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750216B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028853A (en) * | 1998-07-07 | 2000-01-28 | Fujikura Ltd | Optical connector |
| JP2002055253A (en) * | 2000-08-10 | 2002-02-20 | Fujikura Ltd | Optical multiplexer/demultiplexer |
| US7195400B2 (en) | 2000-01-06 | 2007-03-27 | Fujikura Ltd. | Optical connector and assembling method for the same |
| US10551576B2 (en) | 2015-02-13 | 2020-02-04 | Furukawa Electric Co., Ltd. | Optical fiber fixing structure |
-
1986
- 1986-06-20 JP JP61144225A patent/JPH0750216B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028853A (en) * | 1998-07-07 | 2000-01-28 | Fujikura Ltd | Optical connector |
| US7195400B2 (en) | 2000-01-06 | 2007-03-27 | Fujikura Ltd. | Optical connector and assembling method for the same |
| JP2002055253A (en) * | 2000-08-10 | 2002-02-20 | Fujikura Ltd | Optical multiplexer/demultiplexer |
| US10551576B2 (en) | 2015-02-13 | 2020-02-04 | Furukawa Electric Co., Ltd. | Optical fiber fixing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750216B2 (en) | 1995-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3833621B2 (en) | Polarization maintaining optical fiber | |
| JPH0616126B2 (en) | Ferrule for optical fiber connection | |
| JPH02108010A (en) | Polarizing-state maintaining optical fiber for manufacturing coupler | |
| JP4014776B2 (en) | Optical connector | |
| USRE33296E (en) | Method of making a polarization-insensitive, evanescent-wave, fused coupler with minimal environmental sensitivity | |
| EP1739464A1 (en) | Polarization-maintaining optical fiber and optical fiber gyro | |
| US7907807B2 (en) | Pure silica core, high birefringence, single polarization optical waveguide | |
| Schiffner et al. | Double-core single-mode optical fiber as directional coupler | |
| EP0895061A2 (en) | Gyro sensor coil with filled optical fiber | |
| JPH0264508A (en) | Ferrule for fixing constant polarization optical fiber and method for fixing constant polarization optical fiber by using said ferrule | |
| JPS62299918A (en) | Method for fixing polarized wave maintaining optical fiber | |
| KR100523951B1 (en) | Port Gyro Sensor Coil with Stress Relief Between Turbines | |
| US7042572B2 (en) | Fiber optic sensing coil with isotropic properties | |
| JPS59166810A (en) | Fiber optical rotary sensor | |
| JPS59164505A (en) | Single-polarization single-mode optical fiber | |
| JPH07168067A (en) | Optical fiber | |
| JPH0342606A (en) | Optical fiber connector for maintaining polarized wave | |
| JPS6283708A (en) | Constant polarization optical fiber | |
| JPH0350505A (en) | Single polarization optical fiber | |
| GB2445081A (en) | Birefringent waveguide comprising elliptical stress region | |
| JPS58221807A (en) | Optical fiber maintaining plane of polarization | |
| JPH09105832A (en) | Optical fiber type coupler | |
| JPH0272307A (en) | Fixing method for constant polarization optical fiber | |
| JPH0380209A (en) | Perrule for polarization maintaining optical fiber | |
| JPS6356614A (en) | Stress induction type polarized wave maintaining optical fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |