JPS6051684B2 - Optical fiber splitter/optical coupler - Google Patents
Optical fiber splitter/optical couplerInfo
- Publication number
- JPS6051684B2 JPS6051684B2 JP51076446A JP7644676A JPS6051684B2 JP S6051684 B2 JPS6051684 B2 JP S6051684B2 JP 51076446 A JP51076446 A JP 51076446A JP 7644676 A JP7644676 A JP 7644676A JP S6051684 B2 JPS6051684 B2 JP S6051684B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical fiber
- fiber
- light
- lens
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2817—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using reflective elements to split or combine optical signals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
【発明の詳細な説明】 本発明は光ファイバ用光分配・光結合器に関する。[Detailed description of the invention] The present invention relates to a light distribution/coupler for optical fibers.
多重モード光ファイバにおいて、従来知られている電磁
波的な発想による分配を試みると、そのファイバ内にお
ける伝送モード分布により分配の割合が変わる欠点があ
る。When trying to perform distribution based on the conventionally known concept of electromagnetic waves in a multimode optical fiber, there is a drawback that the distribution ratio changes depending on the transmission mode distribution within the fiber.
この欠点を改善する手段として第１図に示す如く第１の
ファイバ１の光路に光学レンズ２半透明鏡３光学レンズ
４を介して第２の光ファイバ５を設け、反射光路に光学
レンズ６を介して第３のファイバ７を設けた光学系があ
る。As a means to improve this drawback, as shown in FIG. 1, a second optical fiber 5 is provided in the optical path of the first fiber 1 via an optical lens 2, a semitransparent mirror 3, and an optical lens 4, and an optical lens 6 is provided in the reflected optical path. There is an optical system with a third fiber 7 provided therebetween.
この光学系は第１のファイバ１の光路に対し４５度傾け
て設けたものである。This optical system is provided at an angle of 45 degrees with respect to the optical path of the first fiber 1.
しかしながらこの光学系では、光ファイバの太さ１００
〜２００μｍに比較して大規模になり過ぎ、取扱いが困
難である欠点があつた。However, in this optical system, the thickness of the optical fiber is 100
It had the disadvantage that it was too large compared to ~200 μm and was difficult to handle.
本発明は上記点に鑑みなされたもので、光ファイバの光
学系として望ましい大きさの光学系を可能ならしめた光
ファイバ用光分配光結合器を提供するものである。The present invention has been made in view of the above points, and it is an object of the present invention to provide a light distribution optical coupler for an optical fiber, which enables an optical system of a desirable size as an optical system for an optical fiber.
すなわち、第１のファイバの光路に対し直交よりや）傾
けて半透明鏡を配置し、該鏡の反射光路に第２の光ファ
イバを配置し、透過光路に第３の光ファイバを配置した
構成にしたものである。That is, a configuration in which a semitransparent mirror is arranged at an angle (more than orthogonal to the optical path of the first fiber), a second optical fiber is arranged in the reflected optical path of the mirror, and a third optical fiber is arranged in the transmitted optical path. This is what I did.
次に図面を参照して実施例を説明する。第１のファイバ
１１の出射光路光学レンズ１２を例えば凸レンズを設け
て、平行光にし、この光路に該光路に対し直交よりやゝ
傾けて半透明鏡１３を配置する。Next, embodiments will be described with reference to the drawings. The output optical path optical lens 12 of the first fiber 11 is provided with, for example, a convex lens to form parallel light, and a semi-transparent mirror 13 is placed on this optical path at a slight angle with respect to the optical path.
該鏡１３の反射光路には第２の光ファイバ１４を配置し
て反射光を第２の光ファイバ１４に導入する。他方前記
鏡１３の透過光路に光学レンズ１５例えば凸レンズを介
して第３の光ファイバ１６を配置し、該ファイバ１６に
導入するよにして光ファイバ用光分配・光結合器を構成
する。A second optical fiber 14 is disposed in the reflection optical path of the mirror 13, and the reflected light is introduced into the second optical fiber 14. On the other hand, a third optical fiber 16 is arranged in the transmission optical path of the mirror 13 via an optical lens 15, for example, a convex lens, and is introduced into the fiber 16 to constitute a light distribution/coupler for the optical fiber.
このように構成すると、第１のファイバ１１からの光を
第２および第３のファイバ１４、１６に光分配できる。With this configuration, the light from the first fiber 11 can be distributed to the second and third fibers 14 and 16.
また逆に第２および第３のファイバ１４、１６からの光
は、第１の光ファイバ１１に光結合することもできる。
さらにまた第３図の如く４入出力とすることもできる。
さらにまた第２図において光ファイバ１６に光送信機を
結合し、光ファイバ１４に光受信機を結合し、光ファイ
バ１６からの光の一部を光ファイバ１１から伝送し、光
ファイバ１１からの光の一部を光ファイバ１４の光受信
機に導びくようにしてもよい。Conversely, the light from the second and third fibers 14 and 16 can also be optically coupled to the first optical fiber 11.
Furthermore, it is also possible to have four inputs and outputs as shown in FIG.
Furthermore, in FIG. 2, an optical transmitter is coupled to the optical fiber 16, an optical receiver is coupled to the optical fiber 14, a part of the light from the optical fiber 16 is transmitted from the optical fiber 11, and a part of the light from the optical fiber 11 is transmitted from the optical fiber 11. A portion of the light may be guided to an optical receiver in optical fiber 14.
第１図は従来の光ファイバ用光分配器を説明するための
構成図、第２図は本発明に係る光ファイバ用光分配、光
結合器の実施例を説明するための構成図、第３図は第２
図の他の実施例説明図である。
１１，１４，１６・・・・・・光ファイバ、１２，１５
・・・・・光学レンズ、１３・・・・・・半透明鏡。FIG. 1 is a block diagram for explaining a conventional optical fiber splitter, FIG. 2 is a block diagram for explaining an embodiment of the optical fiber splitter and optical coupler according to the present invention, and FIG. The figure is the second
It is an explanatory diagram of another example of the figure. 11, 14, 16... Optical fiber, 12, 15
...Optical lens, 13...Semi-transparent mirror.
Claims (1)
射光を平行光にする第１の光学レンズと、前記平行光の
光軸に対して直交よりやや傾斜して設けられた半透明鏡
と、該半透明鏡を透過した前記平行光の透過光を収束さ
せる第２の光学レンズと、該第２の光学レンズの収束光
が入射する第２の光ファイバと、前記半透明鏡で反射さ
れた前記平行光の反射光が前記第１の光学レンズで収束
されて入射する第３の光ファイバとを具備することを特
徴とする光ファイバ用分光分配・光結合器。1 A first optical fiber, a first optical lens that converts the light emitted from the first optical fiber into parallel light, and a semi-transparent lens provided at a slight angle with respect to the optical axis of the parallel light. a mirror, a second optical lens that converges the transmitted light of the parallel light transmitted through the semi-transparent mirror, a second optical fiber into which the converged light of the second optical lens enters, and the semi-transparent mirror. A spectral distribution/optical coupler for an optical fiber, comprising a third optical fiber into which the reflected light of the parallel light is converged by the first optical lens and enters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51076446A JPS6051684B2 (en) | 1976-06-30 | 1976-06-30 | Optical fiber splitter/optical coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51076446A JPS6051684B2 (en) | 1976-06-30 | 1976-06-30 | Optical fiber splitter/optical coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS533349A JPS533349A (en) | 1978-01-13 |
| JPS6051684B2 true JPS6051684B2 (en) | 1985-11-15 |
Family
ID=13605371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51076446A Expired JPS6051684B2 (en) | 1976-06-30 | 1976-06-30 | Optical fiber splitter/optical coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051684B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53125553U (en) * | 1977-03-15 | 1978-10-05 | ||
| JPS58171018A (en) * | 1982-03-31 | 1983-10-07 | Nippon Sheet Glass Co Ltd | Optical demultiplexer and optical multiplexer |
| JP2654053B2 (en) * | 1988-02-25 | 1997-09-17 | オルガノ株式会社 | Condensate desalination equipment |
| US5082343A (en) * | 1990-12-20 | 1992-01-21 | At&T Bell Laboratories | Isolated optical coupler |
-
1976
- 1976-06-30 JP JP51076446A patent/JPS6051684B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS533349A (en) | 1978-01-13 |
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