Semiconductor laser unit
文献类型:专利
作者 | KUBO NOBUAKI; SHIBATA ISAMU |
发表日期 | 1987-11-13 |
专利号 | JP1987261187A |
著作权人 | RICOH CO LTD |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Semiconductor laser unit |
英文摘要 | PURPOSE:To keep the temperature of a laser diode within a specified range, by forming a resistor and a heat sensitive element around a laserdiode attaching position by printing, and controlling the conduction of a current to the resistor based on the detected temperature of the heat sensitive element. CONSTITUTION:A laser diode 1 is heated by a resistor 3, which is formed in a holding member 2 by printing. The holding member 2 of the laser diode 1 is formed by alumina ceramics and the like characterized by high heat conductivity and low specific heat. By forming the resistor 3 on the surface of the holding member 2, by printing, the holding member 2 forms a ceramic heater, whose linear expansion coefficient is small. The temperature of the laser diode 1 is controlled by the ceramic heater. Thus, the temperature control efficiency is high, and the heat capacity of the laser diode holding member, in which the resistor is formed, becomes small. The load at the time of heating when the current is conducted to the resistor becomes small. In this way, the control characterized by quick response to the preset temperature can be performed. |
公开日期 | 1987-11-13 |
申请日期 | 1986-05-07 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/68868] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | RICOH CO LTD |
推荐引用方式 GB/T 7714 | KUBO NOBUAKI,SHIBATA ISAMU. Semiconductor laser unit. JP1987261187A. 1987-11-13. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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