JPH0396060U - - Google Patents
Info
- Publication number
- JPH0396060U JPH0396060U JP520590U JP520590U JPH0396060U JP H0396060 U JPH0396060 U JP H0396060U JP 520590 U JP520590 U JP 520590U JP 520590 U JP520590 U JP 520590U JP H0396060 U JPH0396060 U JP H0396060U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- emitting element
- semiconductor laser
- laser device
- 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 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
Description
第１図はこの考案の一実施例を示す半導体レー
ザ装置の構成断面図、第２図は従来の半導体レー
ザ装置を示す構成断面図である。
図において、１……ＬＤ、３……前面光取出し
窓、４……裏面光取出し窓、５……発光素子容器
、７……くさび形のガラス板、８……ＰＤ、９…
…受光素子容器、１１……接着剤である。なお、
各図中の同一符号は同一または相当部分を示す。
FIG. 1 is a sectional view of the structure of a semiconductor laser device showing an embodiment of this invention, and FIG. 2 is a sectional view of the structure of a conventional semiconductor laser device. In the figure, 1... LD, 3... Front light extraction window, 4... Back light extraction window, 5... Light emitting element container, 7... Wedge-shaped glass plate, 8... PD, 9...
. . . Light receiving element container, 11 . . . Adhesive. In addition,
The same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
面光を光取出し窓を介して受光素子容器内の受光
素子で受光しモニタ光として用いる半導体レーザ
装置において、前記受光素子容器の光入射部に、
前記受光素子に照射されたモニタ光の反射光が前
記発光素子に再入射しないように斜面部の光透過
率を減少させたくさび形のガラス板を設けたこと
を特徴とする半導体レーザ装置。 In a semiconductor laser device in which backside light from a light-emitting element disposed in a light-emitting element container is received by a light-receiving element in a light-receiving element container through a light extraction window and used as monitor light, a light incident part of the light-receiving element container is ,
A semiconductor laser device comprising a wedge-shaped glass plate that reduces the light transmittance of the sloped portion so that the reflected light of the monitor light irradiated on the light receiving element does not enter the light emitting element again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP520590U JPH0396060U (en) | 1990-01-23 | 1990-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP520590U JPH0396060U (en) | 1990-01-23 | 1990-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0396060U true JPH0396060U (en) | 1991-10-01 |
Family
ID=31508921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP520590U Pending JPH0396060U (en) | 1990-01-23 | 1990-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0396060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007044920A (en) * | 2005-08-08 | 2007-02-22 | Canon Inc | Recorder |
-
1990
- 1990-01-23 JP JP520590U patent/JPH0396060U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007044920A (en) * | 2005-08-08 | 2007-02-22 | Canon Inc | Recorder |