JPS6176407U - - Google Patents
Info
- Publication number
- JPS6176407U JPS6176407U JP16067784U JP16067784U JPS6176407U JP S6176407 U JPS6176407 U JP S6176407U JP 16067784 U JP16067784 U JP 16067784U JP 16067784 U JP16067784 U JP 16067784U JP S6176407 U JPS6176407 U JP S6176407U
- Authority
- JP
- Japan
- Prior art keywords
- polarizer
- light
- spherical lens
- polarization
- optical fiber
- 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 6
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Description
第１図は本考案の偏波面保存光フアイバ用光源
に使用する球レンズの一実施例を示す横断面図、
第２図は偏光子付球レンズの他の実施例を示す横
断面図、第３図は本考案の変形例を示す半球レン
ズの横断面図、第４図は従来の偏波面保存光フア
イバ用ＬＤ光源の構成図である。
１，２：半球ガラス、３：誘電体多層膜（偏光
子）、４，５：無反射コート、６，７：平面部分
。
FIG. 1 is a cross-sectional view showing an embodiment of a spherical lens used in a light source for a polarization-maintaining optical fiber according to the present invention;
Fig. 2 is a cross-sectional view showing another embodiment of a spherical lens with a polarizer, Fig. 3 is a cross-sectional view of a hemispherical lens showing a modification of the present invention, and Fig. 4 is a conventional polarization-maintaining optical fiber. It is a block diagram of an LD light source. 1, 2: hemispherical glass, 3: dielectric multilayer film (polarizer), 4, 5: anti-reflection coating, 6, 7: flat portion.
Claims (1)
ンズを用いて平行光に変換した後偏光子により直
線偏光化し、その後半球レンズによつて集光して
偏波面保存光フアイバの光学軸に直線偏光の方位
を合わせて結合させる偏波面保存光フアイバ用光
源において、前記球レンズとして外径０．８〜３
mmの球レンズが使用され、該球レンズの中心を通
る平面内に誘電体多層膜からなる偏光子の層が設
けられており、前記偏光子の機能を兼ねる構成と
したことを特徴とする偏波面保存光フアイバ用光
源。 (2) 前記偏光子の機能を有する球レンズは、光
の入出射曲率面に無反射コートが施してある実用
新案登録請求の範囲第１項記載の偏波面保存光フ
アイバ用光源。 (3) 前記偏光子の機能を有する球レンズは、外
周に固定用の平面部分を有する実用新案登録請求
の範囲第１項または第２項記載の偏波面保存光フ
アイバ用光源。[Scope of Claim for Utility Model Registration] (1) The diffused light emitted from the laser diode is converted into parallel light using a ball lens, then linearly polarized using a polarizer, and then condensed using a hemispherical lens to produce polarization-preserving light. In a light source for a polarization-maintaining optical fiber that aligns and couples linearly polarized light with the optical axis of the fiber, the spherical lens has an outer diameter of 0.8 to 3.
mm spherical lens is used, a polarizer layer made of a dielectric multilayer film is provided in a plane passing through the center of the spherical lens, and the polarizer has a structure that also functions as the polarizer. Light source for wavefront preserving optical fiber. (2) The light source for a polarization-maintaining optical fiber according to claim 1, wherein the spherical lens having the function of a polarizer has an anti-reflection coating applied to the curvature surface of the light input and output. (3) The light source for a polarization-maintaining optical fiber according to claim 1 or 2, wherein the spherical lens having the function of a polarizer has a flat part for fixing on the outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16067784U JPH036885Y2 (en) | 1984-10-24 | 1984-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16067784U JPH036885Y2 (en) | 1984-10-24 | 1984-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6176407U true JPS6176407U (en) | 1986-05-22 |
| JPH036885Y2 JPH036885Y2 (en) | 1991-02-21 |
Family
ID=30718597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16067784U Expired JPH036885Y2 (en) | 1984-10-24 | 1984-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036885Y2 (en) |
-
1984
- 1984-10-24 JP JP16067784U patent/JPH036885Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036885Y2 (en) | 1991-02-21 |
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