中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Laser diode driving circuit

文献类型:专利

作者BAUMGARTNER, STEVEN JOHN; HEDIN, DANIEL SCOTT; SILJENBERG, DAVID WARREN
发表日期2002-05-21
专利号US6392215
著作权人INTERNATIONAL BUSINESS MACHINES CORPORATION
国家美国
文献子类授权发明
其他题名Laser diode driving circuit
英文摘要An improved laser diode driving circuit is disclosed which includes a current source, an operational amplifier, a light sensing device, a current mirror, and a constant current source. The current source is coupled to the laser diode for biasing the laser diode. The operational amplifier has an output coupled to the current source for driving the current source. The operational amplifier includes a first and a second input. The first input is coupled to a reference voltage. The second input receives a feedback signal. The light sensing device is coupled to a first supply voltage for detecting a portion of an optical power output from the laser. The light sensing device generates a monitor current proportional to the detected optical power output. The current mirror is coupled to the light sensing device and the second input of the operational amplifier. The current mirror receives the monitor current and generates a mirror current which is substantially equal to the monitor current. The constant current source is coupled to the second input of the operational amplifier for outputting a reference current. The reference current and the mirror current are then utilized to generate the feedback signal.
公开日期2002-05-21
申请日期1999-09-20
状态失效
源URL[http://ir.opt.ac.cn/handle/181661/71560]  
专题半导体激光器专利数据库
作者单位INTERNATIONAL BUSINESS MACHINES CORPORATION
推荐引用方式
GB/T 7714
BAUMGARTNER, STEVEN JOHN,HEDIN, DANIEL SCOTT,SILJENBERG, DAVID WARREN. Laser diode driving circuit. US6392215. 2002-05-21.

入库方式: OAI收割

来源:西安光学精密机械研究所

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