JPH01133759U - - Google Patents
Info
- Publication number
- JPH01133759U JPH01133759U JP2885088U JP2885088U JPH01133759U JP H01133759 U JPH01133759 U JP H01133759U JP 2885088 U JP2885088 U JP 2885088U JP 2885088 U JP2885088 U JP 2885088U JP H01133759 U JPH01133759 U JP H01133759U
- Authority
- JP
- Japan
- Prior art keywords
- light
- semiconductor laser
- lens
- rod lens
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案に係るレーザ光源の一実施例を
示す構成ブロツク図、第２図は第１図装置の光フ
アイバの入射端面を示す部分拡大図、第３図およ
び第４図は本考案に係るレーザ光源の第２の実施
例を示す構成ブロツク図、第５図および第６図は
従来のレーザ光源を示す構成ブロツク図である。
１…レーザ光源、２…光フアイバ、１１…半導
体レーザ、１２…レンズ、１３…受光素子、１４
，１７…斜め研磨された端面、１６…ロツドレン
ズ。
Fig. 1 is a block diagram showing an embodiment of the laser light source according to the present invention, Fig. 2 is a partially enlarged view showing the entrance end face of the optical fiber of the device shown in Fig. 1, and Figs. FIGS. 5 and 6 are block diagrams showing a conventional laser light source according to a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Laser light source, 2... Optical fiber, 11... Semiconductor laser, 12... Lens, 13... Light receiving element, 14
, 17... Diagonally polished end face, 16... Rod lens.
Claims (1)
光を集光するレンズと、このレンズの出射光を入
射し入射端面が斜め研磨された光フアイバと、こ
の光フアイバの前記端面からの反射光を検出する
受光素子とを備えたことを特徴とするレーザ光源
。 (2) 半導体レーザと、この半導体レーザの出射
光を集光し一方の端面が斜め研磨されたロツドレ
ンズと、このロツドレンズの出射光を入射する光
フアイバと、前記ロツドレンズの前記端面からの
反射光を検出する受光素子とを備えたことを特徴
とするレーザ光源。[Scope of Claim for Utility Model Registration] (1) A semiconductor laser, a lens that condenses the emitted light of this semiconductor laser, an optical fiber into which the emitted light of this lens is incident and whose input end face is obliquely polished, and this optical fiber. and a light receiving element that detects reflected light from the end face of the laser light source. (2) A semiconductor laser, a rod lens that condenses the emitted light of the semiconductor laser and has one end surface polished obliquely, an optical fiber that receives the emitted light of the rod lens, and a rod lens that collects the light reflected from the end surface of the rod lens. A laser light source characterized by comprising a light receiving element for detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2885088U JPH01133759U (en) | 1988-03-04 | 1988-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2885088U JPH01133759U (en) | 1988-03-04 | 1988-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01133759U true JPH01133759U (en) | 1989-09-12 |
Family
ID=31252547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2885088U Pending JPH01133759U (en) | 1988-03-04 | 1988-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01133759U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006351439A (en) * | 2005-06-17 | 2006-12-28 | Hamamatsu Photonics Kk | Spot light source device |
| JP2008224478A (en) * | 2007-03-14 | 2008-09-25 | Iwasaki Electric Co Ltd | Light quantity monitor and light source apparatus using the same |
| JP2011192848A (en) * | 2010-03-15 | 2011-09-29 | Fujitsu Ltd | Optical transmission device, laser module, fault detection method of the laser module, and fault detection program of the laser module |
-
1988
- 1988-03-04 JP JP2885088U patent/JPH01133759U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006351439A (en) * | 2005-06-17 | 2006-12-28 | Hamamatsu Photonics Kk | Spot light source device |
| JP4664129B2 (en) * | 2005-06-17 | 2011-04-06 | 浜松ホトニクス株式会社 | Spot light source device |
| JP2008224478A (en) * | 2007-03-14 | 2008-09-25 | Iwasaki Electric Co Ltd | Light quantity monitor and light source apparatus using the same |
| JP2011192848A (en) * | 2010-03-15 | 2011-09-29 | Fujitsu Ltd | Optical transmission device, laser module, fault detection method of the laser module, and fault detection program of the laser module |
| US8772692B2 (en) | 2010-03-15 | 2014-07-08 | Fujitsu Limited | Optical transmission device, laser module, failure detection method for laser module, and failure detection program for laser module |
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