JPS6150906U - - Google Patents
Info
- Publication number
- JPS6150906U JPS6150906U JP13682484U JP13682484U JPS6150906U JP S6150906 U JPS6150906 U JP S6150906U JP 13682484 U JP13682484 U JP 13682484U JP 13682484 U JP13682484 U JP 13682484U JP S6150906 U JPS6150906 U JP S6150906U
- Authority
- JP
- Japan
- Prior art keywords
- convex curved
- lens
- central axis
- refractive index
- rod 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Description
第１図は本考案の実施例の側面図、第２図は本
考案のロツドレンズと従来例の先球ロツドレンズ
の場合の、半導体レーザからの出力光ビーム出射
角に対する各ロツドレンズ内でのビーム拡がりの
計算結果を示す図である。
１…接合面、２…半導体レーザ、３…発光面、
４…出力光ビーム、５…ダイヤモンドヒートシン
ク、６…ロツドレンズ、７…第１の端面、８…基
盤、９…光フアイバ、１０…入射端部、１１…第
２の端面、５１…光軸、５２…中心軸。
Fig. 1 is a side view of an embodiment of the present invention, and Fig. 2 shows the beam spread within each rod lens with respect to the output light beam output angle from the semiconductor laser in the case of the rod lens of the present invention and the conventional spherical tip rod lens. It is a figure showing a calculation result. 1... Bonding surface, 2... Semiconductor laser, 3... Light emitting surface,
4... Output light beam, 5... Diamond heat sink, 6... Rod lens, 7... First end surface, 8... Base, 9... Optical fiber, 10... Incident end, 11... Second end surface, 51... Optical axis, 52 ...Central axis.
Claims (1)
形成された凸曲面付ロツドレンズにおいて、中心
軸の屈折率をｎ０、集束パラメータをａ、前記中
心軸からの距離をｒ、レンズ半径をＲとしたとき
に、屈折率分布がｎ（ｒ）＝ｎ０（１―1/2ａｒ
２）で近似され、√Ｒが０．３５以上であり且
つレンズピツチが０．２５ピツチ以下となること
を特徴とする凸曲面付ロツドレンズを用いた光結
合器。 In a convex curved rod lens in which the end face facing the semiconductor light emitting device is formed into a convex curved surface, the refractive index of the central axis is n 0 , the focusing parameter is a, the distance from the central axis is r, and the lens radius is R When, the refractive index distribution is n(r)=n 0 (1-1/2ar
2 ) An optical coupler using a rod lens with a convex curved surface, characterized in that √R is 0.35 or more and the lens pitch is 0.25 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13682484U JPS6150906U (en) | 1984-09-10 | 1984-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13682484U JPS6150906U (en) | 1984-09-10 | 1984-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6150906U true JPS6150906U (en) | 1986-04-05 |
Family
ID=30695264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13682484U Pending JPS6150906U (en) | 1984-09-10 | 1984-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6150906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003315637A (en) * | 2002-04-26 | 2003-11-06 | Yamaha Corp | Structure of light emitting part |
-
1984
- 1984-09-10 JP JP13682484U patent/JPS6150906U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003315637A (en) * | 2002-04-26 | 2003-11-06 | Yamaha Corp | Structure of light emitting part |
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