JP2926664B2 - Optical module - Google Patents
Optical moduleInfo
- Publication number
- JP2926664B2 JP2926664B2 JP7500591A JP7500591A JP2926664B2 JP 2926664 B2 JP2926664 B2 JP 2926664B2 JP 7500591 A JP7500591 A JP 7500591A JP 7500591 A JP7500591 A JP 7500591A JP 2926664 B2 JP2926664 B2 JP 2926664B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical fiber
- receiving element
- optical
- light receiving
- 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
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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Led Devices (AREA)
- Light Receiving Elements (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Led Device Packages (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は光ファイバと、発光素子
及び／又は発光素子とを光結合した光モジュールに関
し、光通信用送受信装置に用いて好適なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber and a light emitting element and / or an optical module in which a light emitting element is optically coupled, and is suitable for use in a transmitting / receiving apparatus for optical communication.
【０００２】[0002]
【従来の技術】光ファイバと面発光素子、面受光素子と
の光結合構造に関しては、従来、これらの光素子に対し
て垂直に保持した光ファイバと光結合した縦型実装の光
モジュールが多く用いられている。しかしこの構造で
は、光モジュールをプリント基板等の支持基板に搭載す
る際、光ファイバを基板に対して平行に配置すると光素
子が基板に垂直に立つことになるため部品高が高くな
る。したがって、いくつものプリント基板にこれらの光
モジュールを搭載して構成される装置においては、各プ
リント基板間の間隔が大きくなり、実装密度が上がらな
いという問題がある。2. Description of the Related Art With respect to an optical coupling structure between an optical fiber, a surface light emitting element, and a surface light receiving element, conventionally, there are many vertically mounted optical modules optically coupled to an optical fiber held vertically to these optical elements. Used. However, in this structure, when the optical module is mounted on a support substrate such as a printed circuit board, if the optical fibers are arranged in parallel to the substrate, the optical element will stand perpendicular to the substrate, so that the component height will increase. Therefore, in an apparatus configured by mounting these optical modules on a number of printed boards, there is a problem that the interval between the printed boards is increased and the mounting density is not increased.
【０００３】そこで、上記問題点を解決する手段とし
て、例えばK.P.Jackson et.al.；Optical Fiber Coupli
ng Approach for Multi-Channel Laserand Detector Ar
rays［SPIE Vol.994 Optoelectronic Materials,Device
s,Packaging and Interconnects 11 (1988) ］には、横
型構造が提案されている。この横型構造は、図４に示す
ように、コア部１ａ及びクラッド部１ｂからなる光ファ
イバ１の先端を４５度に斜め研磨した反射面２とし、一
方、支持基板３上に受光素子４を搭載し、上記光ファイ
バ１を支持基板３に対して平行に保持して光ファイバ１
のコア部１ａを伝搬して反射面２で反射された光ビーム
を受光素子４の受光面に入射するものである。この構造
の光モジュールでは、プリント基板等の支持基板４に搭
載する際、光ファイバ１と受光素子４とがこれら支持基
板４に対して平行となるので部品高が低くなり、高密度
な実装が可能である。[0003] As means for solving the above problems, for example, KP Jackson et. Al .; Optical Fiber Coupli
ng Approach for Multi-Channel Laserand Detector Ar
rays [SPIE Vol.994 Optoelectronic Materials, Device
s, Packaging and Interconnects 11 (1988)], a horizontal structure is proposed. In this horizontal structure, as shown in FIG. 4, the tip of an optical fiber 1 composed of a core portion 1a and a clad portion 1b is formed as a reflecting surface 2 which is polished at an angle of 45 degrees, while a light receiving element 4 is mounted on a support substrate 3. Then, the optical fiber 1 is held parallel to the support
The light beam propagated through the core portion 1a and reflected by the reflection surface 2 is incident on the light receiving surface of the light receiving element 4. In the optical module having this structure, when the optical fiber 1 and the light receiving element 4 are mounted on a support substrate 4 such as a printed circuit board, the component height is reduced because the optical fiber 1 and the light receiving element 4 are parallel to the support substrate 4, so that high-density mounting is possible. It is possible.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
横型構造の光モジュールでは、斜め研磨した反射面から
の出射ビームは光ファイバの軸方向に集光性を持たない
ため、軸方向に長径を有する楕円形状のスポットとなっ
て受光面に投射される。したがって、例えば受光素子の
容量を小さくして周波数特性を向上させる高速受光モジ
ュールにおいては、受光径が３０μｍ以下と極めて小さ
いため、上記楕円形状の出射ビームスポットでは結合効
率が非常に悪くなるという問題がある。また、面発光素
子と光ファイバから構成される光モジュールについても
光の入出射方向が異なるだけであり、同様の問題があ
る。However, in the conventional horizontal type optical module, the beam emitted from the obliquely polished reflection surface does not have a condensing property in the axial direction of the optical fiber, and therefore has a major axis in the axial direction. An elliptical spot is projected on the light receiving surface. Therefore, for example, in a high-speed light receiving module in which the capacity of the light receiving element is reduced to improve the frequency characteristics, the light receiving diameter is extremely small, 30 μm or less, so that the coupling efficiency becomes very poor in the elliptical output beam spot. is there. Further, an optical module composed of a surface light emitting element and an optical fiber is different only in the light input / output direction, and has the same problem.
【０００５】本発明はこのような事情に鑑み、光ファイ
バと発光・受光素子とを効率よく光結合し、且つ支持基
板に搭載する際に高密度で実装可能な光モジュールを提
供することを目的とする。[0005] In view of such circumstances, an object of the present invention is to provide an optical module which efficiently optically couples an optical fiber and a light emitting / receiving element and which can be mounted at a high density when mounted on a supporting substrate. And
【０００６】[0006]
【課題を解決するための手段】前記目的を達成する本発
明に係る光モジュールは、先端部に斜め研磨した反射面
を有する少なくとも１本の光ファイバと、上記反射面で
の反射光を介して上記光ファイバと光学的に結合される
少なくとも１個の発光・受光素子とからなる光モジュー
ルであって、上記反射面での反射光のうち上記発光・受
光素子へ向かう光の出射面又は上記発光・受光素子から
上記反射面へ向かう光の上記光ファイバへの入射面が平
面に研磨された平面部となっていることを特徴とし、ま
た、上記構成において、光ファイバの平面部と発光・受
光素子との間に、光ファイバの反射面から発光・受光素
子に向かう光又は発光・受光素子から反射面へ向かう光
を集光する少なくとも１個のレンズを具えたことを特徴
とする。An optical module according to the present invention for achieving the above object has at least one optical fiber having an obliquely polished reflection surface at the tip end and a light reflected by the reflection surface. An optical module comprising at least one light-emitting / light-receiving element optically coupled to the optical fiber, wherein an emission surface of light toward the light-emitting / light-receiving element out of light reflected on the reflection surface or the light emission -An incident surface of the light from the light receiving element toward the reflection surface to the optical fiber is a flat portion polished to a flat surface. At least one lens for condensing light from the reflecting surface of the optical fiber toward the light emitting / receiving element or light from the light emitting / receiving element to the reflecting surface is provided between the element and the element.
【０００７】[0007]
【作用】前記構成の光モジュールにおいては、光ファイ
バのコア部を伝搬して反射面で反射した光ビームは平面
部から出射して受光素子の受光面に入射し、また、発光
素子から出射した光は平面部から光ファイバに入射し、
反射面で反射してコア部に入射する。すなわち、光ファ
イバからの出射又は光ファイバへの入射が平面部を介し
て行われて光ビームの偏った広がりが生じないので、結
合効率が高い。また、平面部を介して光ファイバと発光
・受光素子とを密着させればさらに高い結合効率が得ら
れる。さらに、光ファイバの平面部と発光・受光素子と
の間に集光レンズを配置すると、さらに結合効率が高く
なる。In the optical module having the above construction, the light beam propagated through the core of the optical fiber and reflected by the reflection surface exits from the plane portion, enters the light receiving surface of the light receiving element, and exits from the light emitting element. Light enters the optical fiber from the flat part,
The light is reflected by the reflecting surface and enters the core. In other words, the light is emitted from the optical fiber or incident on the optical fiber through the plane portion, and the light beam is not unbalancedly spread, so that the coupling efficiency is high. Further, if the optical fiber and the light emitting / receiving element are brought into close contact with each other via the flat portion, higher coupling efficiency can be obtained. Further, when a condenser lens is arranged between the plane portion of the optical fiber and the light emitting / receiving element, the coupling efficiency is further increased.
【０００８】[0008]
【実施例】以下、本発明を実施例に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.
【０００９】図１には受光素子を用いた光モジュールの
第一の実施例を示す。同図に示すように、コア部１１ａ
及びクラッド部１１ｂからなる光ファイバ１１は、先端
を斜め研磨した反射面１２と、クラッド部１１ｂの一部
を光軸に平行に削り取って研磨した平面部１３とを有し
ており、この平面部１３に受光素子４を密着配置するこ
とにより光モジュールが構成されている。ここで、反射
面１２は光ファイバ１１の光軸を含む一面に４５度傾斜
するように形成されており、また、平面部１３は上記一
面に平行となるように形成されている。したがって、コ
ア部１１ａを伝搬してきた光ビームは反射面１２で反射
されると平面部１３を直交する光となって該平面部１３
から出射し、受光素子１４に結合する。FIG. 1 shows a first embodiment of an optical module using a light receiving element. As shown in FIG.
The optical fiber 11 composed of the cladding portion 11b has a reflecting surface 12 whose tip is obliquely polished, and a flat portion 13 which is obtained by shaving a part of the cladding portion 11b in parallel with the optical axis and polishing. An optical module is formed by closely attaching the light receiving element 4 to the optical module 13. Here, the reflection surface 12 is formed so as to be inclined at 45 degrees to one surface including the optical axis of the optical fiber 11, and the flat portion 13 is formed so as to be parallel to the one surface. Therefore, when the light beam propagating through the core portion 11a is reflected by the reflection surface 12, the light beam becomes orthogonal to the plane portion 13 and becomes light orthogonal to the plane portion 13.
And is coupled to the light receiving element 14.
【００１０】このように本実施例の光モジュールでは、
光ファイバ１１のクラッド部１１ｂを削除して平面部１
３を形成し、且つ、その直下に受光素子１４を配置した
ため、コア部１１ａからの光ビームは、光ファイバ１１
の円筒形状外周のレンズ効果による偏ったビーム広がり
を生ずることなく、円形のスポットを保ったまま光ファ
イバ先端側面の平面部１３から出射し、受光素子１４に
入射するので、高い結合効率を得ることができる。As described above, in the optical module of this embodiment,
The cladding 11b of the optical fiber 11 is deleted and the flat portion 1 is removed.
3 and the light receiving element 14 is disposed immediately below the light receiving element 3, the light beam from the core 11a
Since the light is emitted from the flat portion 13 on the side face of the optical fiber tip and enters the light receiving element 14 while maintaining a circular spot without causing a biased beam spread due to the lens effect on the outer periphery of the cylindrical shape, high coupling efficiency can be obtained. Can be.
【００１１】図２には第二の実施例に係る光モジュール
を示す。同図において、光ファイバ１１及び受光素子１
４は上記第一の実施例のものと同一であり、光ファイバ
１１の反射面１２及び平面部１３を有する。この光ファ
イバ１１の平面部には接着剤等によりレンズ１５が接着
されており、該レンズ１５の出射側に受光素子１４が配
置されている。すなわち、光ファイバ１１のコア部１１
ａを伝搬した光ビームが反射面１２で反射されて平面部
１３から出射した後、レンズ１５により集光され、受光
素子１４の受光面に結合するようになっている。FIG. 2 shows an optical module according to a second embodiment. In the figure, an optical fiber 11 and a light receiving element 1
Reference numeral 4 is the same as that of the first embodiment, and has a reflection surface 12 of an optical fiber 11 and a plane portion 13. A lens 15 is adhered to the flat surface of the optical fiber 11 with an adhesive or the like, and a light receiving element 14 is arranged on the emission side of the lens 15. That is, the core 11 of the optical fiber 11
After the light beam propagating through a is reflected by the reflection surface 12 and emitted from the plane portion 13, the light beam is condensed by the lens 15 and coupled to the light receiving surface of the light receiving element 14.
【００１２】このように本実施例の光モジュールでは、
光ファイバ１１のクラッド部１１ｂを削除して平面部１
３を形成し、且つ、該平面部１３にレンズ１５を接着し
てあるので、コア部１１ａからの光ビームは、光ファイ
バ１１の円筒形状外周のレンズ効果による偏ったビーム
広がりを生ずることなく、円形のスポットを保ったまま
光ファイバ先端側面の平面部１３から出射すると共にレ
ンズ１５を介して受光素子１４に集光・入射されるので
結合効率を大幅に向上させることができる。なお、本実
施例では、光ファイバの平面部にレンズを取りつけた例
について示したが、受光素子の表面に取りつけたり、受
光素子と平面部との間に距離をあけて設置してもよく、
この場合も同様な効果が得られる。As described above, in the optical module of this embodiment,
The cladding 11b of the optical fiber 11 is deleted and the flat portion 1 is removed.
3 and the lens 15 is adhered to the plane portion 13, so that the light beam from the core portion 11 a does not cause uneven beam spread due to the lens effect on the outer periphery of the cylindrical shape of the optical fiber 11. The light is emitted from the flat portion 13 on the side surface of the optical fiber tip while keeping the circular spot, and is also condensed and incident on the light receiving element 14 via the lens 15, so that the coupling efficiency can be greatly improved. In the present embodiment, an example in which the lens is attached to the flat portion of the optical fiber is shown, but it may be attached to the surface of the light receiving element, or may be installed with a distance between the light receiving element and the flat portion,
In this case, the same effect can be obtained.
【００１３】図３には第三の実施例に係る光モジュール
を示す。同図において、１１１は光ファイバアレイであ
り、図１及び図２と同様な光ファイバ１１をアレイ状に
整列したものである。また、１１４は図１及び図２と同
様な受光素子１４を整列した受光素子アレイ、１１５は
図１と同様なレンズ１５を整列したレンズアレイであ
る。FIG. 3 shows an optical module according to a third embodiment. In the figure, reference numeral 111 denotes an optical fiber array in which optical fibers 11 similar to those shown in FIGS. 1 and 2 are arranged in an array. Reference numeral 114 denotes a light receiving element array in which light receiving elements 14 similar to those in FIGS. 1 and 2 are arranged, and 115 denotes a lens array in which lenses 15 similar to those in FIG.
【００１４】ここで、光ファイバアレイ１１１は反射面
１１２及び平面部１１３を有する。反射面及び平面部１
１３は、光ファイバ１１の反射面１２及び平面部１３の
一平面に整列したものである。かかる光ファイバアレイ
１１１は、光ファイバ１１を、各反射面１２及び平面部
１３が一平面状になるように整列して接着することによ
り形成してもよいが、光ファイバを集合した後反射面１
１２及び平面部１１３を加工するのが好ましい。すなわ
ち、例えば、シリコン基板等をエッチング等により加工
したＶ溝整列治具に光ファイバを整列して接着・固定し
てファイバアレイとした後、その先端を各光ファイバの
光軸を含む一面に対して４５度傾斜するように研磨して
反射面１１２を形成し、その後、この反射面１１２の先
端側を含むクラッド部を削除・研磨して上記一面に平行
な平面部１１３を形成するようにする。Here, the optical fiber array 111 has a reflection surface 112 and a flat portion 113. Reflection surface and flat part 1
Numeral 13 is aligned with the reflection surface 12 of the optical fiber 11 and one plane of the plane portion 13. Such an optical fiber array 111 may be formed by aligning and bonding the optical fibers 11 so that the respective reflecting surfaces 12 and the flat portions 13 are formed in one plane. 1
It is preferable to process 12 and the flat part 113. That is, for example, after aligning and bonding and fixing an optical fiber to a V-groove alignment jig processed by etching or the like on a silicon substrate or the like to form a fiber array, the tip is directed to one surface including the optical axis of each optical fiber. The reflective surface 112 is formed by polishing so that the reflective surface 112 is inclined by 45 degrees. Then, the clad portion including the front end side of the reflective surface 112 is removed and polished to form the flat portion 113 parallel to the one surface. .
【００１５】本実施例の光モジュールは、光ファイバア
レイ１１１の平面部１１３にレンズアレイ１１５を接着
し、その出射側に受光素子アレイ１１４が配置されてい
る。ここで、レンズアレイ１１５の各レンズの配列ピッ
チ及び受光素子アレイ１１４の各受光素子の配列ピッチ
は光ファイバアレイ１１１の各光ファイバ１１の配列ピ
ッチと同一となっている。なお、本実施例の光モジュー
ル作用効果は図２に示す光モジュールと同様であるの
で、ここでの説明は省略する。In the optical module according to the present embodiment, a lens array 115 is adhered to a plane portion 113 of an optical fiber array 111, and a light receiving element array 114 is disposed on an emission side thereof. Here, the arrangement pitch of each lens of the lens array 115 and the arrangement pitch of each light receiving element of the light receiving element array 114 are the same as the arrangement pitch of each optical fiber 11 of the optical fiber array 111. The operation and effect of the optical module of this embodiment are the same as those of the optical module shown in FIG.
【００１６】光ファイバアレイ１１１の整列に使用する
Ｖ溝およびレンズアレイ１１５の配列ピッチはリソグラ
フィー技術によって高精度に制御することが出来る。ま
た、受光素子アレイ１１４などの光デバイスは半導体技
術によって高精度に製作される。従って、本実施例のよ
うに光ファイバアレイを用いることにより光結合効率が
高くかつ小型の光モジュールが実現可能である。The V-grooves used to align the optical fiber array 111 and the arrangement pitch of the lens array 115 can be controlled with high precision by lithography. In addition, optical devices such as the light receiving element array 114 are manufactured with high precision by semiconductor technology. Therefore, by using the optical fiber array as in the present embodiment, a small optical module having high optical coupling efficiency can be realized.
【００１７】なお、上記各実施例では受光素子を用いた
光モジュールについて説明したが、受光素子の代りに面
発光素子を用いてもビームの伝搬方向が異なるだけで同
様な効果が得られることは言うまでもない。In each of the above embodiments, an optical module using a light receiving element has been described. However, even if a surface emitting element is used instead of the light receiving element, the same effect can be obtained only by changing the beam propagation direction. Needless to say.
【００１８】また、以上説明した各実施例においては、
平面部１４，１１４は反射面１３，１１３に対して４５
度傾斜し且つ光ファイバの光軸を含む平面に平行とした
が、平面であれば何れの方向へ傾斜していてもよい。こ
の場合、平面部での入・出射の際の屈折を考慮して光学
的に結合させればよいからである。さらに、反射面１
３，１１３も光ファイバの光軸を含む平面に対して４５
度傾斜するものとしたが、必ずしも４５度である必要は
ない。この場合も反射方向を考慮して光結合させればよ
いからである。但し、平面部を入・出射する光が該平面
部に対して直交する条件が結合ロスが小さく好ましいこ
とは言うまでもない。In each of the embodiments described above,
The flat portions 14 and 114 are 45
Although it is inclined at an angle and parallel to a plane including the optical axis of the optical fiber, it may be inclined in any direction as long as it is a plane. This is because in this case, the optical coupling may be performed in consideration of refraction at the time of entering and exiting the plane portion. Furthermore, the reflection surface 1
3,113 is also 45 ° with respect to the plane including the optical axis of the optical fiber.
Although it is assumed that the angle is inclined by 45 degrees, it is not always necessary to be 45 degrees. In this case as well, the light coupling may be performed in consideration of the reflection direction. However, it goes without saying that the condition that the light entering and exiting the plane portion is orthogonal to the plane portion is preferable because the coupling loss is small.
【００１９】[0019]
【発明の効果】以上述べたように、本発明による光モジ
ュールは斜め研磨面からなる反射面で反射する光ビーム
を偏ったビーム広がりを生ずることなく、円形のスポッ
トを保ちながら受光素子に集光したり、あるいは面発光
素子から光ファイバへ入射させることができ、光ファイ
バと発光・受光素子との結合効率の高いものであり、し
かも、これを用いると高密度の実装が可能である。As described above, in the optical module according to the present invention, the light beam reflected by the reflecting surface formed by the obliquely polished surface is condensed on the light receiving element while maintaining a circular spot without causing uneven beam spread. Or light can be incident on the optical fiber from the surface light emitting element, and the coupling efficiency between the optical fiber and the light emitting / receiving element can be high, and if this is used, high-density mounting is possible.
【図１】第一の実施例に係る光モジュールを示す説明図
である。FIG. 1 is an explanatory diagram illustrating an optical module according to a first embodiment.
【図２】第二の実施例に係る光モジュールを示す説明図
である。FIG. 2 is an explanatory diagram showing an optical module according to a second embodiment.
【図３】第三の実施例に係る光モジュールを示す説明図
である。FIG. 3 is an explanatory diagram illustrating an optical module according to a third embodiment.
【図４】従来技術にかかる光モジュールを示す説明図で
ある。FIG. 4 is an explanatory diagram showing an optical module according to the related art.
１１ 光ファイバ １２ 反射面 １３ 平面部 １４ 受光素子 １５ レンズ １１１ 光ファイバアレイ １１２ 反射面 １１３ 平面部 １１４ 受光素子アレイ １１５ レンズアレイ DESCRIPTION OF SYMBOLS 11 Optical fiber 12 Reflecting surface 13 Flat part 14 Light receiving element 15 Lens 111 Optical fiber array 112 Reflecting surface 113 Flat part 114 Light receiving element array 115 Lens array
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−181709（ＪＰ，Ａ) 特開 平３−161704（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) G02B 6/42 - 6/43 G02B 6/10 H01L 31/0232 H01L 33/00 ────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-2-181709 (JP, A) JP-A-3-161704 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) G02B 6/42-6/43 G02B 6/10 H01L 31/0232 H01L 33/00
Claims (2)
なくとも１本の光ファイバと、上記反射面での反射光を
介して上記光ファイバと光学的に結合される少なくとも
１個の発光・受光素子とからなる光モジュールであっ
て、上記反射面での反射光のうち上記発光・受光素子へ
向かう光の出射面又は上記発光・受光素子から上記反射
面へ向かう光の上記光ファイバへの入射面が平面に研磨
された平面部となっていることを特徴とする光モジュー
ル。At least one optical fiber having an obliquely polished reflecting surface at a distal end portion, and at least one light emitting / receiving light optically coupled to the optical fiber via light reflected by the reflecting surface. An optical module comprising an element, and of the light reflected on the reflection surface, an emission surface of light directed to the light-emitting / light-receiving element or light incident on the reflection surface from the light-emitting / light-receiving element to the optical fiber. An optical module characterized in that the surface is a flat portion polished to a flat surface.
と発光・受光素子との間に、光ファイバの反射面から発
光・受光素子に向かう光又は発光・受光素子から反射面
へ向かう光を集光する少なくとも１個のレンズを具えた
ことを特徴とする光モジュール。2. The device according to claim 1, wherein between the plane portion of the optical fiber and the light emitting / receiving element, light traveling from the reflecting surface of the optical fiber to the light emitting / receiving element or light traveling from the light emitting / receiving element to the reflecting surface is transmitted. An optical module comprising at least one lens for condensing light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7500591A JP2926664B2 (en) | 1991-04-08 | 1991-04-08 | Optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7500591A JP2926664B2 (en) | 1991-04-08 | 1991-04-08 | Optical module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04308804A JPH04308804A (en) | 1992-10-30 |
| JP2926664B2 true JP2926664B2 (en) | 1999-07-28 |
Family
ID=13563654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7500591A Expired - Fee Related JP2926664B2 (en) | 1991-04-08 | 1991-04-08 | Optical module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2926664B2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE506991C2 (en) * | 1996-01-26 | 1998-03-09 | Ericsson Telefon Ab L M | Method and apparatus for connecting a waveguide to a component |
| JPH11264920A (en) | 1998-03-18 | 1999-09-28 | Fujitsu Ltd | Optical transmission module |
| JP3256489B2 (en) | 1998-04-23 | 2002-02-12 | 日本電気株式会社 | Optical coupling structure, optical device, their manufacturing method and manufacturing apparatus |
| JP2003207694A (en) | 2002-01-15 | 2003-07-25 | Nec Corp | Optical module |
| US7123798B2 (en) | 2002-03-29 | 2006-10-17 | Ngk Insulators, Ltd. | Optical device and method of producing the same |
| JP4025598B2 (en) * | 2002-07-29 | 2007-12-19 | 京セラ株式会社 | Fiber lens |
| US7321703B2 (en) | 2002-12-20 | 2008-01-22 | Ngk Insulators, Ltd. | Optical device |
| US7195402B2 (en) | 2002-12-20 | 2007-03-27 | Ngk Insulators, Ltd. | Optical device |
| US7308174B2 (en) | 2002-12-20 | 2007-12-11 | Ngk Insulators, Ltd. | Optical device including a filter member for dividing a portion of signal light |
| JP4031804B2 (en) | 2003-06-02 | 2008-01-09 | 日本碍子株式会社 | Optical device |
| KR20060065430A (en) | 2004-12-10 | 2006-06-14 | 한국전자통신연구원 | Optical fiber illuminator, method of fabricating the optical fiber illuminator, optical recording head, and optical recording and reading apparatus having the optical fiber illuminator |
| US7517159B1 (en) * | 2007-09-27 | 2009-04-14 | Reflex Photonics Inc. | Two substrate parallel optical sub-assembly |
| US9274292B2 (en) | 2012-12-27 | 2016-03-01 | Panasonic Intellectual Property Management Co., Ltd. | Signal transmitting connector, cable having the signal transmitting connector, display apparatus having the cable, and video signal output apparatus |
| JP2016194658A (en) | 2015-04-01 | 2016-11-17 | 住友電気工業株式会社 | Optical device, optical processing device, and method of producing optical device |
| JPWO2017115412A1 (en) | 2015-12-28 | 2018-10-25 | オリンパス株式会社 | Optical transmission module and endoscope |
| JP2017142325A (en) | 2016-02-09 | 2017-08-17 | 住友電気工業株式会社 | Optical device, optical processing device and method for manufacturing optical device |
| JP6733534B2 (en) | 2016-12-16 | 2020-08-05 | 住友電気工業株式会社 | Semiconductor device and manufacturing method thereof |
-
1991
- 1991-04-08 JP JP7500591A patent/JP2926664B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04308804A (en) | 1992-10-30 |
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