JPH03127302U - - Google Patents
Info
- Publication number
- JPH03127302U JPH03127302U JP3661090U JP3661090U JPH03127302U JP H03127302 U JPH03127302 U JP H03127302U JP 3661090 U JP3661090 U JP 3661090U JP 3661090 U JP3661090 U JP 3661090U JP H03127302 U JPH03127302 U JP H03127302U
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- single mode
- multimode
- numerical aperture
- output
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 claims description 9
- 238000000253 optical time-domain reflectometry Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Optical Couplings Of Light Guides (AREA)
Description
第１図は、本考案によるシングルモード／マル
チモード変換器の概要を示す図、第２図ａに示す
のは、上記シングルモード／マルチモード変換器
の具体的構造を示す断面図、第２図ｂは、同図ａ
のレンズ配置を示す模式図、第３図は、上記シン
グルモード／マルチモード変換器をＳＭ用ＯＴＤ
ＲとＭＭフアイバとの間に接続した状態を示す図
、第４図は、同使用例によるＭＭフアイバの損失
をＳＭ用ＯＴＤＲで測定した結果を示すグラフ、
第５図は、同使用例によるＭＭフアイバの接続点
損失をＳＭ用ＯＴＤＲで測定した結果を示すグラ
フ、第６図ａは、ＳＭ用ＯＴＤＲにＭＭフアイバ
を接続した接続点Ａを示す図、第６図ｂは、ＭＭ
フアイバ内におけるＳＭフアイバから入射した光
の伝搬するビーム径を示す図である。
１……ＳＭフアイバ、３，３ａ，３ｂ……レン
ズ、５……ＭＭフアイバ、９……シングルモード
／マルチモード変換器、３０……ＳＭ用ＯＴＤＲ
。
FIG. 1 is a diagram showing an outline of the single mode/multimode converter according to the present invention, FIG. 2a is a sectional view showing the specific structure of the single mode/multimode converter, and FIG. b is the same figure as a
FIG. 3 is a schematic diagram showing the lens arrangement of the above single mode/multimode converter.
FIG. 4 is a graph showing the results of measuring the loss of the MM fiber in the same usage example using an SM OTDR.
Fig. 5 is a graph showing the result of measuring the connection point loss of the MM fiber using the SM OTDR in the same usage example; Fig. 6a is a graph showing the connection point A where the MM fiber is connected to the SM OTDR; Figure 6b shows MM
FIG. 3 is a diagram showing the beam diameter of propagation of light incident from the SM fiber within the fiber. 1...SM fiber, 3, 3a, 3b...lens, 5...MM fiber, 9...single mode/multimode converter, 30...SM OTDR
.
Claims (1)
え、該入力ポートに接続されるシングルモードフ
アイバ１が有する出射開口数を出力ポートに接続
されるマルチモードフアイバ５が有する開口数ま
たはそれ以上に変換するレンズ３を備えたことを
特徴とするシングルモード／マルチモード変換器
。 A lens 3 that includes an input port 18 and an output port 20, and converts the output numerical aperture of the single mode fiber 1 connected to the input port into the numerical aperture or higher of the multimode fiber 5 connected to the output port. A single mode/multimode converter characterized by being equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3661090U JPH03127302U (en) | 1990-04-06 | 1990-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3661090U JPH03127302U (en) | 1990-04-06 | 1990-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03127302U true JPH03127302U (en) | 1991-12-20 |
Family
ID=31542992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3661090U Pending JPH03127302U (en) | 1990-04-06 | 1990-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03127302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008538613A (en) * | 2004-09-08 | 2008-10-30 | アルカテル−ルーセント | Mode converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57158604A (en) * | 1981-03-27 | 1982-09-30 | Nec Corp | Light beam converting adaptor |
| JPS6278506A (en) * | 1985-09-30 | 1987-04-10 | Nec Corp | Optical connector with beam conversion mechanism |
| JPH0277703A (en) * | 1988-09-14 | 1990-03-16 | Fujitsu Ltd | Structure for connecting single mode optical fiber and multimode optical fiber |
| JPH0293411A (en) * | 1988-09-30 | 1990-04-04 | Fujitsu Ltd | Mode conversion adapter |
| JPH0293408A (en) * | 1988-09-30 | 1990-04-04 | Fujitsu Ltd | Mode conversion adapter |
-
1990
- 1990-04-06 JP JP3661090U patent/JPH03127302U/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57158604A (en) * | 1981-03-27 | 1982-09-30 | Nec Corp | Light beam converting adaptor |
| JPS6278506A (en) * | 1985-09-30 | 1987-04-10 | Nec Corp | Optical connector with beam conversion mechanism |
| JPH0277703A (en) * | 1988-09-14 | 1990-03-16 | Fujitsu Ltd | Structure for connecting single mode optical fiber and multimode optical fiber |
| JPH0293411A (en) * | 1988-09-30 | 1990-04-04 | Fujitsu Ltd | Mode conversion adapter |
| JPH0293408A (en) * | 1988-09-30 | 1990-04-04 | Fujitsu Ltd | Mode conversion adapter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008538613A (en) * | 2004-09-08 | 2008-10-30 | アルカテル−ルーセント | Mode converter |