JPH0470633U - - Google Patents
Info
- Publication number
- JPH0470633U JPH0470633U JP11396290U JP11396290U JPH0470633U JP H0470633 U JPH0470633 U JP H0470633U JP 11396290 U JP11396290 U JP 11396290U JP 11396290 U JP11396290 U JP 11396290U JP H0470633 U JPH0470633 U JP H0470633U
- Authority
- JP
- Japan
- Prior art keywords
- coherent light
- case
- optical fiber
- input
- side optical
- 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 claims description 16
- 230000001427 coherent effect Effects 0.000 claims 20
- 239000000284 extract Substances 0.000 claims 1
- 230000010287 polarization Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Description
第１図は本考案の第１実施例にかかる周波数シ
フタの内部構成を示す斜視図、第２図及び第３図
は従来の周波数シフタを示す図、第４図は第１図
に示される周波数シフタの外観斜視図、第５図は
本考案の第２実施例にかかる周波数シフタの内部
構成を示す斜視図である。
１……本体光学ベース、１１……ベース部、１
２……前側壁面部、１３……後側壁面部、１４…
…カバー部材、２１，２２……音響光学変調器、
３……入射側光フアイバ、４０，４１，４２，４
３……フアイバ保持具、５，５１……偏光ビーム
スプリツタ、６１，６２，６３……光線反射ミラ
ー、７０，７１，７２……出射側光フアイバ。
FIG. 1 is a perspective view showing the internal structure of a frequency shifter according to a first embodiment of the present invention, FIGS. 2 and 3 are views showing a conventional frequency shifter, and FIG. 4 is a perspective view showing the internal structure of a frequency shifter according to a first embodiment of the present invention. FIG. 5 is a perspective view showing the internal structure of a frequency shifter according to a second embodiment of the present invention. 1... Main body optical base, 11... Base part, 1
2...Front side wall part, 13...Rear side wall part, 14...
...cover member, 21, 22...acousto-optic modulator,
3...Incidence side optical fiber, 40, 41, 42, 4
3... Fiber holder, 5, 51... Polarizing beam splitter, 61, 62, 63... Light reflecting mirror, 70, 71, 72... Output side optical fiber.
Claims (1)
フトさせたコヒーレント光を射出する周波数シフ
タにおいて、 ケースと、 入射コヒーレント光を前記ケース内に導く入射
側光フアイバと、 このケース内に収容されていると共に、前記ケ
ース内に導かれた入射コヒーレント光を入射して
周波数をシフトさせたコヒーレント光を射出する
音響光学変調器と、 この音響光学変調器から射出させたコヒーレン
ト光をケース外部に取り出す出射側光フアイバと
を有し、 前記入射側光フアイバと出射側光フアイバとを
共に前記ケースの中心部に対して一方の側に位置
する部位に集中して設けたことを特徴とする周波
数シフタ。 (2) コヒーレント光を入射してその周波数をシ
フトさせたコヒーレント光を射出する周波数シフ
タにおいて、 ケースと、 入射コヒーレント光を前記ケース内に導く入射
側偏波面保存光フアイバと、 前記ケース内に収容されていると共に、前記入
射側偏波面保存光フアイバから出射された入射コ
ヒーレント光を入射して二方向に分離して射出す
る偏光ビームスプリツタと、 前記ケース内に収容されていると共に、前記偏
光ビームスプリタから射出されたコヒーレント光
をそれぞれ入射して周波数をシフトさせたコヒー
レント光を射出する音響光学変調器と、 この音響光学変調器から射出させたコヒーレン
ト光をケース外部に取り出す出射側光フアイバと
を有し、 前記入射側光フアイバと出射側光フアイバとを
共に前記ケースの中心部に対して一方の側に位置
する部位に集中して設けたことを特徴とする周波
数シフタ。 (3) コヒーレント光を入射してその周波数をシ
フトさせたコヒーレント光を射出する周波数シフ
タにおいて、 ケースと、 入射コヒーレント光を前記ケース内に導く入射
側偏波面非保存光フアイバと、 前記ケース内に収容されていると共に、前記入
射側偏波面非保存光フアイバから出射された入射
コヒーレント光を入射して二方向に分離して射出
する無偏光ビームスプリツタと、 前記ケース内に収容されていると共に、前記無
偏光ビームスプリタから射出されたコヒーレント
光をそれぞれ入射して周波数をシフトさせたコヒ
ーレント光を射出する音響光学変調器と、 この音響光学変調器から射出させたコヒーレン
ト光をケース外部に取り出す出射側光フアイバと
を有し、 前記入射側光フアイバと出射側光フアイバとを
共に前記ケースの中心部に対して一方の側に位置
する部位に集中して設けたことを特徴とする周波
数シフタ。[Claims for Utility Model Registration] (1) A frequency shifter that inputs coherent light and outputs coherent light whose frequency has been shifted, comprising: a case; an input-side optical fiber that guides the incident coherent light into the case; an acousto-optic modulator which is housed in the case and which emits coherent light whose frequency has been shifted by inputting the incident coherent light guided into the case; and an output side optical fiber for extracting light to the outside of the case, and the input side optical fiber and the output side optical fiber are both concentrated in a part located on one side with respect to the center of the case. A frequency shifter featuring: (2) A frequency shifter that inputs coherent light and outputs coherent light whose frequency has been shifted, comprising: a case; an input-side polarization-maintaining optical fiber that guides the incident coherent light into the case; and housed in the case. a polarizing beam splitter that receives the incident coherent light emitted from the input-side polarization-maintaining optical fiber, separates it into two directions, and outputs the polarized beam splitter; an acousto-optic modulator that receives coherent light emitted from the beam splitter and emits frequency-shifted coherent light; and an output-side optical fiber that extracts the coherent light emitted from the acousto-optic modulator to the outside of the case. A frequency shifter, characterized in that both the input side optical fiber and the output side optical fiber are provided in a concentrated manner at a portion located on one side with respect to the center of the case. (3) A frequency shifter that receives coherent light and outputs coherent light whose frequency has been shifted, comprising: a case; an input-side non-polarization-maintaining optical fiber that guides the incident coherent light into the case; a non-polarizing beam splitter that is housed in the case and that receives the incident coherent light emitted from the input-side polarization non-maintaining optical fiber, separates it into two directions, and then outputs the incident coherent light; , an acousto-optic modulator that receives the coherent light emitted from the non-polarized beam splitter and emits frequency-shifted coherent light; and an output that takes out the coherent light emitted from the acousto-optic modulator to the outside of the case. A frequency shifter comprising: a side optical fiber, wherein both the input side optical fiber and the output side optical fiber are provided in a concentrated manner at a portion located on one side with respect to the center of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11396290U JP2520885Y2 (en) | 1990-10-30 | 1990-10-30 | Frequency shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11396290U JP2520885Y2 (en) | 1990-10-30 | 1990-10-30 | Frequency shifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0470633U true JPH0470633U (en) | 1992-06-23 |
| JP2520885Y2 JP2520885Y2 (en) | 1996-12-18 |
Family
ID=31861596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11396290U Expired - Lifetime JP2520885Y2 (en) | 1990-10-30 | 1990-10-30 | Frequency shifter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520885Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014112219A (en) * | 2012-11-09 | 2014-06-19 | Sumitomo Electric Ind Ltd | Optical integrated element, and optical module |
| JP2018072605A (en) * | 2016-10-31 | 2018-05-10 | 富士通オプティカルコンポーネンツ株式会社 | Light modulator and light module |
-
1990
- 1990-10-30 JP JP11396290U patent/JP2520885Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014112219A (en) * | 2012-11-09 | 2014-06-19 | Sumitomo Electric Ind Ltd | Optical integrated element, and optical module |
| JP2018072605A (en) * | 2016-10-31 | 2018-05-10 | 富士通オプティカルコンポーネンツ株式会社 | Light modulator and light module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520885Y2 (en) | 1996-12-18 |
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