| Original document(42 pages) Authorized document(42 pages) 中文版 |
To obtain a multiplex laser light source and exposure device. Laser beams B1-7 emitted from a plurality of semiconductor lasers LD1-7 are condensed through a condensing optical system consisting of collimator lenses 11-17 and a condenser lens 20, for example, before multiplexed in a multimode optical fiber 30. In this regard, single cavity nitride based compound semiconductor lasers LD1-7 are employed in a chip state and mounted on a heat dissipation block 10 made of Cu or a Cu alloy through a submount 9. The submount 9 is formed 200-400 [mu]m thick using a material having a thermal expansion coefficient of 3.5-6.0*10<-6>/[deg.]C, and the semiconductor lasers LD1-7 are bonded to the submount 9 with its junction down by dividing an AuSn eutectic point solder and a metallization layer into a plurality of parts in the bonding face. |
Application Number
申请号 |
03147430 |
Application Date
申请日 |
2003.07.10 |
| Title 名称 |
Multiplex laser-light source and exposure system
|
Publication Number
公开号 |
1523450 |
Publication Date
公开日 |
2004.08.25 |
| Approval Pub. Date |
2006.04.05 |
Granted Pub. Date |
2006.04.05 |
| International Classification 分类号 |
G03F7/22,H01S5/00,G02B27/10,G02B3/08 |
Applicant(s) Name
申请人 |
Fuji Photo Film Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Okazaki Yoji, Nagano Kazuhiko |
| Attorney & Agent 代理人 |
li xianglan |
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