JP3049780B2 - Method for connecting optical waveguide and optical fiber and optical device using the same - Google Patents
Method for connecting optical waveguide and optical fiber and optical device using the sameInfo
- Publication number
- JP3049780B2 JP3049780B2 JP3010423A JP1042391A JP3049780B2 JP 3049780 B2 JP3049780 B2 JP 3049780B2 JP 3010423 A JP3010423 A JP 3010423A JP 1042391 A JP1042391 A JP 1042391A JP 3049780 B2 JP3049780 B2 JP 3049780B2
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- optical
- optical fiber
- optical waveguide
- waveguide
- housing
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Description
【０００１】[0001]
【産業上の利用分野】本発明は光通信システム等におけ
る導波路型光デバイスに係り、特に温度変動に伴う接続
部の損失変動や経時的な光ファイバの破損等を回避して
接続特性の向上を図った光導波路と光ファイバの接続方
法およびそれを用いた光デバイスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waveguide type optical device in an optical communication system and the like, and more particularly to improvement of connection characteristics by avoiding loss fluctuation of a connection portion due to temperature fluctuation and breakage of an optical fiber with time. The present invention relates to a method for connecting an optical waveguide to an optical fiber and an optical device using the same.
【０００２】最近の導波路型光デバイスの如き光回路構
成部品の分野では、光導波路と光ファイバの接続を低損
失で行うと共に温度変動に伴う損失変化の安定性が強く
要求されるようになってきている。In the field of optical circuit components such as recent waveguide type optical devices, there has been a strong demand for low loss connection between an optical waveguide and an optical fiber and stability of loss change due to temperature fluctuation. Is coming.
【０００３】これに対応するため導波路型光デバイスと
光ファイバの直接接続が低損失で実現できる光学系が提
供されているが、温度変動に伴う接続部での損失変化が
大きいことからその解決が望まれている。To cope with this, there has been provided an optical system capable of realizing a direct connection between a waveguide type optical device and an optical fiber with a low loss. Is desired.
【０００４】[0004]
【従来の技術】例えば半導体レーザを ON-OFF させたと
きに発生する光信号を光ファイバで長距離伝送を行う場
合所要情報量の増大につれて上記光信号のビットレート
が向上する傾向にあるが、該ビットレートが特にギガビ
ット/ 秒（Gbps) オーダになると波長チャーピングと呼
ばれる波長域の広がりや光ファイバが有する光分散特性
等によって長距離伝送が困難になってきている。2. Description of the Related Art For example, when an optical signal generated when a semiconductor laser is turned on and off is transmitted over an optical fiber over a long distance, the bit rate of the optical signal tends to increase as the required information amount increases. Particularly when the bit rate is in the order of gigabits / second (Gbps), long-distance transmission becomes difficult due to the spread of a wavelength range called wavelength chirping and the optical dispersion characteristics of an optical fiber.
【０００５】従って外部変調方式によって強制的に光強
度変調を行って光パルス信号を生成する手段が実用化さ
れているが、この場合電気光学結晶であるニオブ酸リチ
ウム(LiNbO3)の表面にチタン(Ti)を拡散させて形成した
光導波路を持つ光変調器の端面に露出する光導波路部分
に光ファイバを接続して外部変調器として使用すること
が多い。Therefore, means for forcibly modulating light intensity by an external modulation method to generate a light pulse signal has been put to practical use. In this case, titanium is applied to the surface of lithium niobate (LiNbO 3 ) which is an electro-optic crystal. In many cases, an optical fiber is connected to an optical waveguide portion exposed at an end face of an optical modulator having an optical waveguide formed by diffusing (Ti) and used as an external modulator.
【０００６】光デバイスが外部変調器である場合を例と
する図２は光導波路と光ファイバの従来の接続方法を説
明する図であり、(2-1) は構成と方法を示す図,(2-2)は
接続後の完成状態を示す平面図である。FIG. 2 exemplifying a case in which the optical device is an external modulator, is a diagram for explaining a conventional connection method between an optical waveguide and an optical fiber, and (2-1) is a diagram showing a configuration and a method. 2-2) is a plan view showing a completed state after connection.
【０００７】図２で外部変調器１は、板状の光変調器２
の端面の光導波路露出面に光ファイバ３を接続した後筺
体４に固定し蓋５でカバーして構成したものであるが、
図では理解し易くするため本発明に関与する接続部を抽
出して表わしている。In FIG. 2, an external modulator 1 is a plate-shaped optical modulator 2.
The optical fiber 3 is connected to the exposed surface of the optical waveguide at the end surface of the optical fiber 3 and then fixed to the housing 4 and covered with the lid 5.
In the figure, connection parts related to the present invention are extracted and shown for easy understanding.
【０００８】そしてこの場合の光変調器２は上述したニ
オブ酸リチウムからなる導波路基板2aの表面にパターン
形成したチタン(Ti)を拡散させて形成しているが、その
端面の光ファイバ３との接続部には幅が７μm,深さが４
μm 程度の半円状の光導波路2bが露出している。In this case, the optical modulator 2 is formed by diffusing titanium (Ti) patterned on the surface of the waveguide substrate 2a made of lithium niobate described above. 7 μm width and 4 depth
The semicircular optical waveguide 2b of about μm is exposed.
【０００９】また中心部のコアがクラッドで被覆されて
いる直径が 125μ程度の光ファイバ３はその周囲が例え
ばビニール樹脂の如き保護樹脂膜3aで保護されている。
この場合該光変調器２と光ファイバ３とを確実に接続す
るには両者の接合面積をできるだけ大きくすることが望
ましい。The optical fiber 3 having a diameter of about 125 .mu.m whose core at the center is covered with a clad is protected by a protective resin film 3a such as a vinyl resin.
In this case, it is desirable to increase the joint area between the optical modulator 2 and the optical fiber 3 as much as possible in order to connect them reliably.
【００１０】そこで、先ず導波路基板2aと同じ材料から
なるブロック2cを上記光導波路2bを挟み込む形に矢印Ａ
のように載置して両者を接着固定した後、光導波路2bと
直交する方向に基板2aを該ブロック2cと共に切断し更に
その切断面を例えば光学研磨して光導波路2bが露出した
光ファイバ接合面2a-1を構成する。Therefore, first, a block 2c made of the same material as that of the waveguide substrate 2a is formed by an arrow A so as to sandwich the optical waveguide 2b.
Then, the substrate 2a is cut together with the block 2c in a direction perpendicular to the optical waveguide 2b, and the cut surface is optically polished to expose the optical waveguide 2b. The surface 2a- 1 is formed.
【００１１】一方光ファイバ３の先端部には、該光ファ
イバ３とほぼ同径の貫通孔を持つ外径が１mm程度のリン
グ状のルビービーズ3bが該光ファイバ３の先端部を僅か
に突出させた状態で熱硬化性エポキシ樹脂等で固定され
ている。On the other hand, at the tip of the optical fiber 3, a ring-shaped ruby bead 3b having a through hole having substantially the same diameter as the optical fiber 3 and having an outer diameter of about 1 mm protrudes slightly from the tip of the optical fiber 3. In this state, it is fixed with a thermosetting epoxy resin or the like.
【００１２】そこで、該ルビービーズ3bの光ファイバ先
端側端面3b-1に紫外線硬化型樹脂等の接着剤3cを塗布し
た後上記基板2aとブロック2cとからなる光ファイバ接合
面2a -1に位置決め押圧して両者を接着固定すると、上記
光ファイバ３を充分な接着強度で基板2aに接合すること
ができる。Therefore, the optical fiber tip of the ruby beads 3b is
End side end face 3b-1Apply an adhesive 3c such as an ultraviolet curable resin
After the above, the optical fiber bonding composed of the substrate 2a and the block 2c
Face 2a -1When the two are bonded and fixed by pressing
Bonding the optical fiber 3 to the substrate 2a with sufficient adhesive strength
Can be.
【００１３】しかる後、基板2a部分は例えばスーパーイ
ンバーの如く室温近傍で熱膨張率の小さい材料からなる
筺体４の底面所定位置に矢印Ｂのように載置して両者を
接着固定すると共に光ファイバ３は保護樹脂膜3aで覆わ
れた領域を該筺体４の周壁所定位置に形成されているＶ
溝4a部分に矢印Ｃのように嵌合させて熱硬化性エポキシ
樹脂等で接着固定し、更に矢印Ｄのように該筺体４に蓋
５を固定して(2-2) に示す所要の外部変調器１を構成す
るようにしている。Thereafter, the substrate 2a is placed at a predetermined position on the bottom surface of a housing 4 made of a material having a low coefficient of thermal expansion near room temperature, such as Super Invar, for example, as indicated by an arrow B, and the two are bonded and fixed together with an optical fiber. Reference numeral 3 denotes a V formed at a predetermined position on the peripheral wall of the housing 4 in an area covered with the protective resin film 3a.
It is fitted into the groove 4a as shown by the arrow C, and is adhesively fixed with a thermosetting epoxy resin or the like. Further, the lid 5 is fixed to the housing 4 as shown by the arrow D, and a required external part shown in (2-2) The modulator 1 is configured.
【００１４】この場合周囲雰囲気に温度変動があると、
筺体４の熱膨張率より大きい熱膨張率を持つ光ファイバ
３は固定されている光ファイバ接合面2a-1と筺体４の周
壁との間で温度変動に伴う熱応力を受ける。In this case, if the ambient atmosphere fluctuates in temperature,
The optical fiber 3 having a coefficient of thermal expansion greater than the coefficient of thermal expansion of the housing 4 receives thermal stress due to temperature fluctuation between the fixed optical fiber bonding surface 2a- 1 and the peripheral wall of the housing 4.
【００１５】このことは該光ファイバ３を一点鎖線Ｅで
示すように緊張した状態で該筺体４に固定すると、周囲
雰囲気の温度変動によって光ファイバが圧縮応力を受け
て曲がったり接着箇所の移動や剥離が発生し易くなると
同時に接続部での接続損失が変動することを意味する。This means that when the optical fiber 3 is fixed to the housing 4 in a tensioned state as shown by a dashed line E, the optical fiber receives a compressive stress due to a temperature fluctuation of the surrounding atmosphere, and is bent or moved at the bonding position. It means that peeling is likely to occur, and at the same time, the connection loss at the connection portion fluctuates.
【００１６】そこで該光ファイバ３を保護樹脂膜3aで覆
われた領域で筺体４の周壁所定位置に設けたＶ溝4aに接
着固定する際に、実線Ｆで示すように予め座屈変形させ
た状態で撓ませて固定するようにしている。Therefore, when the optical fiber 3 is bonded and fixed to the V groove 4a provided at a predetermined position on the peripheral wall of the housing 4 in the area covered with the protective resin film 3a, the optical fiber 3 is previously buckled and deformed as shown by a solid line F. It is bent and fixed in the state.
【００１７】しかしこの場合の光ファイバ３の座屈変形
は、該ファイバ３に内部応力を付与していることになり
該座屈変形が大きいときにはファイバ３自体が破壊され
る危険性が大きくなるが、特に両端すなわちルビービー
ズ3bと筺体周壁の２か所の固定部分が座屈変形時の変曲
点になるため該固定部分に常時曲げ応力が集中すること
になり曲率半径が小さくなったときには該部分で折れ易
くなる欠点がある。However, in this case, the buckling deformation of the optical fiber 3 applies an internal stress to the fiber 3, and when the buckling deformation is large, the risk of breaking the fiber 3 itself increases. In particular, since two fixed portions of both ends, that is, the ruby beads 3b and the peripheral wall of the housing become inflection points at the time of buckling deformation, bending stress is always concentrated on the fixed portion, and when the radius of curvature is reduced, There is a drawback that the part is easily broken.
【００１８】[0018]
【発明が解決しようとする課題】従来の光導波路と光フ
ァイバの接続方法では、周囲雰囲気の温度変動によって
接続部で剥離したり光ファイバ自体が破壊されることが
あると言う問題があった。In the conventional method of connecting an optical waveguide to an optical fiber, there has been a problem that the optical fiber itself may be peeled off or the optical fiber itself may be broken due to a temperature change in the surrounding atmosphere.
【００１９】[0019]
【課題を解決するための手段】上記課題は、光ファイバ
を接続する光導波路基板が少なくとも具えられた光デバ
イスの光導波路と光ファイバとの接続方法であって、光
導波路基板と該光導波路基板の光導波路に接続されてい
る光ファイバとを保持固定する筐体の周壁上部に設ける
該光ファイバを位置決めするＶ溝を、上記光導波路の延
長線上から外れた位置で該光導波路の光ファイバとの接
続位置近傍を向く方向に形成し、一端が上記光導波路の
露出する端面に固定されている上記光ファイバをその保
護樹脂膜形成領域で上記Ｖ溝に固定する光導波路と光フ
ァイバの接続方法によって達成される。An object of the present invention is to provide a method for connecting an optical fiber to an optical waveguide of an optical device having at least an optical waveguide substrate for connecting the optical fiber. A V-groove for positioning the optical fiber, which is provided on an upper peripheral wall of a housing for holding and fixing the optical fiber connected to the optical waveguide, is provided at a position off the extension of the optical waveguide. A method of connecting the optical fiber and the optical fiber, wherein the optical fiber is formed in a direction facing the vicinity of the connection position, and one end of which is fixed to the exposed end face of the optical waveguide is fixed to the V-groove in the protective resin film forming region. Achieved by
【００２０】また、光ファイバを接続する光導波路基板
が少なくとも具えられた光デバイスであって、光導波路
基板と該光導波路基板の光導波路に接続されている光フ
ァイバとを保持固定する筐体の周壁上面に設ける該光フ
ァイバを位置決めするＶ溝が、上記光導波路の延長線上
から外れた位置で該光導波路の光ファイバとの接続位置
近傍を向く方向に形成されている光デバイスによって達
成される。An optical device having at least an optical waveguide substrate for connecting an optical fiber, wherein the housing holds and fixes the optical waveguide substrate and the optical fiber connected to the optical waveguide of the optical waveguide substrate. The V-groove for positioning the optical fiber provided on the upper surface of the peripheral wall is achieved by an optical device formed at a position deviating from the extension of the optical waveguide and in a direction toward the vicinity of the connection position of the optical waveguide with the optical fiber. .
【００２１】[0021]
【作用】光ファイバの２箇所の固定部に変曲点が発生し
ないように該光ファイバを固定すると、該光ファイバに
付与される曲げ応力の集中をなくすことができる。When the optical fiber is fixed so that no inflection point occurs at two fixing portions of the optical fiber, the concentration of bending stress applied to the optical fiber can be eliminated.
【００２２】そこで本発明では筺体周壁における光ファ
イバの固定位置を光導波路延長線上からずらすと共にそ
の位置での該光ファイバの固定方向がほぼ光導波路接続
部近傍に向くように該筺体周壁に設けるＶ溝を形成して
いる。Therefore, in the present invention, the fixing position of the optical fiber on the peripheral wall of the housing is shifted from the extension of the optical waveguide, and the V provided on the peripheral wall of the housing is such that the fixing direction of the optical fiber at that position is substantially directed to the vicinity of the optical waveguide connecting portion. A groove is formed.
【００２３】このことは光導波路接続部ひいてはルビー
ビーズと筺体壁間の光ファイバがほぼ１個の円弧状に彎
曲すると同時に両端それぞれの固定部に変曲点が生じな
いことを意味する。This means that the optical fiber between the optical waveguide connecting portion and the ruby bead and the housing wall bends in a substantially circular arc shape, and that no inflection point occurs at the fixed portions at both ends.
【００２４】従って光ファイバを座屈させる必要がなく
なって内部応力の発生が抑制できると共に両端すなわち
ルビービーズと筺体周壁の２箇所の固定部での変曲点を
なくすことができて周囲雰囲気での温度変動に対応でき
る光導波路と光ファイバの接続方法およびそれを用いた
光デバイスを実現することができる。Therefore, it is not necessary to buckle the optical fiber, and the generation of internal stress can be suppressed, and inflection points at both ends, that is, at two fixed portions of the ruby bead and the peripheral wall of the housing can be eliminated. A method for connecting an optical waveguide and an optical fiber that can cope with temperature fluctuation and an optical device using the same can be realized.
【００２５】[0025]
【実施例】図１は光導波路と光ファイバの本発明になる
接続方法およびそれを用いた光デバイスを説明する図で
あり、(1-1) は構成と方法を示す図,(1-2)は接続後の完
成状態を示す平面図である。1 is a diagram for explaining a method for connecting an optical waveguide and an optical fiber according to the present invention and an optical device using the same. FIG. () Is a plan view showing a completed state after connection.
【００２６】なお図では図２と同様に光デバイスが外部
変調器である場合を例とし、図２と同じ対象物には同一
の記号を付して表わしている。図１で外部変調器11は、
図２で説明した如く板状の光変調器２にブロック2cを接
着固定した後端面を切断, 研磨して形成した光ファイバ
接合面2a-1にリング状のルビービーズ3bが先端に接着固
定された光ファイバ３を接続した後筺体12に固定し、更
に蓋５でカバーして構成したものである。FIG. 2 shows an example in which the optical device is an external modulator as in FIG. 2, and the same objects as those in FIG. 2 are indicated by the same symbols. In FIG. 1, the external modulator 11 is
As described with reference to FIG. 2, a ring-shaped ruby bead 3b is bonded and fixed to the tip of the optical fiber bonding surface 2a- 1 formed by cutting and polishing the rear end surface of the block 2c bonded and fixed to the plate-shaped optical modulator 2. After the optical fiber 3 is connected, the optical fiber 3 is fixed to the housing 12 and further covered with the lid 5.
【００２７】特にこの場合の筺体12は、図２で説明した
筺体４のＶ溝4aに相当するＶ溝12a が上記光変調器２の
光導波路2bの延長線上から外れた位置でほぼ該光導波路
2bの露出する端面の方向を向くように角度αを持って形
成されている。In particular, the housing 12 in this case is substantially located at a position where the V-groove 12a corresponding to the V-groove 4a of the housing 4 described in FIG. 2 is off the extension of the optical waveguide 2b of the optical modulator 2.
2b is formed at an angle α so as to face the direction of the exposed end face.
【００２８】そこで、図２で説明したように導波路基板
2aの上記光ファイバ接合面2a-1に光ファイバ３をルビー
ビーズ3b側で固定し、基板2a部分を筺体12の底面所定位
置に接着固定すると共に光ファイバ３を僅かに彎曲させ
てその保護樹脂膜3aで覆われた領域を該筺体12の上記Ｖ
溝12a 部分に嵌合させて熱硬化性エポキシ樹脂等で接着
固定し更に蓋５で該筺体11をカバーすると、(1-2) に示
す所要の外部変調器11を構成することができる。Therefore, as described with reference to FIG.
The optical fiber 3 is fixed to the above-mentioned optical fiber bonding surface 2a- 1 on the side of the ruby bead 3b, the substrate 2a is adhesively fixed to a predetermined position on the bottom surface of the housing 12, and the optical fiber 3 is slightly bent to protect the optical fiber 3. The area covered with the film 3a is
When the housing 11 is fitted with the groove 12a and bonded and fixed with a thermosetting epoxy resin or the like, and the housing 5 is covered with the lid 5, the required external modulator 11 shown in (1-2) can be formed.
【００２９】かかる光導波路と光ファイバの接続方法で
は、光ファイバ３の２箇所の固定部分に変曲点が生ずる
ことがないと同時に周囲雰囲気の温度変動に伴って該光
ファイバ３に発生する光ファイバ接合面2a-1と筺体12の
周壁間における内部応力は上記彎曲部に吸収されるの
で、周囲雰囲気の温度変動によって接続部で剥離したり
光ファイバ自体が破壊されることのない光導波路と光フ
ァイバの接続方法およびそを用いた光デバイスを実現す
ることができる。According to such a method of connecting the optical waveguide and the optical fiber, no inflection point occurs in the two fixed portions of the optical fiber 3 and at the same time, the light generated in the optical fiber 3 due to the temperature fluctuation of the surrounding atmosphere. Since the internal stress between the fiber bonding surface 2a- 1 and the peripheral wall of the housing 12 is absorbed by the above-mentioned curved portion, an optical waveguide that does not peel at the connection portion or break the optical fiber itself due to temperature fluctuation of the surrounding atmosphere. An optical fiber connection method and an optical device using the same can be realized.
【００３０】なお上述した角度αが２〜３度に収まる位
置に上記Ｖ溝12a を形成すると、周囲雰囲気の温度変動
にほぼ完全に対応できることを実験的に確認している。It has been experimentally confirmed that the formation of the V-groove 12a at a position where the above-mentioned angle α falls within a range of 2 to 3 degrees can almost completely cope with the temperature fluctuation of the ambient atmosphere.
【００３１】[0031]
【発明の効果】上述の如く本発明により、温度変動に伴
う接続部の損失変動や経時的な光ファイバの破損を回避
して接続特性の向上を図った光導波路と光ファイバの接
続方法およびそれを用いた光デバイスを提供することが
できる。As described above, according to the present invention, a method for connecting an optical waveguide and an optical fiber, which improves the connection characteristics by avoiding loss fluctuation of the connection portion due to temperature fluctuation and breakage of the optical fiber over time, and the same. Can be provided.
【図１】 光導波路と光ファイバの本発明になる接続方
法およびそれを用いた光デバイスを説明する図である。FIG. 1 is a diagram illustrating a method for connecting an optical waveguide and an optical fiber according to the present invention and an optical device using the same.
【図２】 光導波路と光ファイバの従来の接続方法を説
明する図である。FIG. 2 is a diagram illustrating a conventional connection method between an optical waveguide and an optical fiber.
２ 光変調器 2a 導波路基
板 2a-1 光ファイバ接合面 2b 光導波路 2c ブロック ３ 光ファイ
バ 3a 保護樹脂膜 3b ルビービ
ーズ ５ 蓋 11 外部変調器 12筐体 12a Ｖ溝2 Optical modulator 2a Waveguide substrate 2a- 1 Optical fiber bonding surface 2b Optical waveguide 2c Block 3 Optical fiber 3a Protective resin film 3b Ruby beads 5 Lid 11 External modulator 12 Housing 12a V-groove
Claims (2)
なくとも具えられた光デバイスの光導波路と光ファイバ
との接続方法であって、光導波路基板(2a)と該光導波路
基板(2a)の光導波路(2b)に接続されている光ファイバ
(3) とを保持固定する筐体(12)の周壁上部に設ける該光
ファイバ(3) を位置決めするＶ溝(12a) を、上記光導波
路(2b)の延長線上から外れた位置で該光導波路(2b)の光
ファイバ(3) との接続位置近傍を向く方向に形成し、一
端が上記光導波路(2b)の露出する端面に固定されている
上記光ファイバ(3) をその保護樹脂膜(3a)形成領域で上
記Ｖ溝(12a) に固定することを特徴とした光導波路と光
ファイバの接続方法。1. A method for connecting an optical waveguide and an optical fiber of an optical device having at least an optical waveguide substrate for connecting an optical fiber, the method comprising connecting the optical waveguide substrate (2a) and the optical waveguide of the optical waveguide substrate (2a). Optical fiber connected to the waveguide (2b)
The V-groove (12a) for positioning the optical fiber (3), which is provided above the peripheral wall of the housing (12) for holding and fixing the optical waveguide (3), is positioned at a position off the extension of the optical waveguide (2b). The optical fiber (3) is formed in a direction facing the vicinity of the connection position of the optical path (2b) with the optical fiber (3), and one end of the optical fiber (3) is fixed to the exposed end face of the optical waveguide (2b). (3a) A method of connecting an optical waveguide and an optical fiber, wherein the optical waveguide is fixed to the V-groove (12a) in a formation region.
なくとも具えられた光デバイスであって、光導波路基板
(2a)と該光導波路基板(2a)の光導波路(2b)に接続されて
いる光ファイバ(3) とを保持固定する筐体(12)の周壁上
面に設ける該光ファイバ(3) を位置決めするＶ溝(12a)
が、上記光導波路(2b)の延長線上から外れた位置で該光
導波路(2b)の光ファイバ(3) との接続位置近傍を向く方
向に形成されていることを特徴とした光デバイス。2. An optical device comprising at least an optical waveguide substrate for connecting an optical fiber, the optical device comprising:
Positioning the optical fiber (3) provided on the upper surface of the peripheral wall of the housing (12) holding and fixing the (2a) and the optical fiber (3) connected to the optical waveguide (2b) of the optical waveguide substrate (2a) V groove (12a)
The optical device is characterized in that it is formed at a position off the extension of the optical waveguide (2b) and in a direction facing the connection position of the optical waveguide (2b) with the optical fiber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010423A JP3049780B2 (en) | 1991-01-31 | 1991-01-31 | Method for connecting optical waveguide and optical fiber and optical device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010423A JP3049780B2 (en) | 1991-01-31 | 1991-01-31 | Method for connecting optical waveguide and optical fiber and optical device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04245208A JPH04245208A (en) | 1992-09-01 |
| JP3049780B2 true JP3049780B2 (en) | 2000-06-05 |
Family
ID=11749745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3010423A Expired - Fee Related JP3049780B2 (en) | 1991-01-31 | 1991-01-31 | Method for connecting optical waveguide and optical fiber and optical device using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3049780B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254280B1 (en) * | 1995-02-21 | 2001-07-03 | Agere Systems Optoelectronics Guardian Corp. | Substrate based array connector |
| JP2011107444A (en) * | 2009-11-18 | 2011-06-02 | Anritsu Corp | Optical element module and method for manufacturing the same |
-
1991
- 1991-01-31 JP JP3010423A patent/JP3049780B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04245208A (en) | 1992-09-01 |
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