Method and apparatus for electrically switching a wavelength control system | |
BROUTIN, SCOTT L.; PLOURDE, JAMES KEVIN; STAYT, JR., JOHN WILLIAM | |
2002-09-10 | |
著作权人 | AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED |
专利号 | US6449077 |
国家 | 美国 |
文献子类 | 授权发明 |
其他题名 | Method and apparatus for electrically switching a wavelength control system |
英文摘要 | An apparatus controls a light source, which may be a laser. A first detector provides a first electrical signal representing an amplitude of a first light that is output by the light source. A filter receives the first light and provides a filtered light having an amplitude that depends on the amplitude and wavelength of the first light. A second detector provides a second electrical signal representing the amplitude of the filtered light. A switching device, such as a multiplexer, is capable of providing either the first electrical signal or the second electrical signal as its output signal. A common amplifier is coupled to the switching device. The common amplifier amplifies the output signal of the switching device, to alternately provide a first amplified signal and a second amplified signal, representing the first and second electrical signals, respectively. A processor receives the first and second amplified signals and generates a control signal that depends on the wavelength of the first light and is independent of the amplitude of the first light. The control signal may be, for example, a control signal for a thermoelectric cooler or a bias signal for a laser. The control signal is used to control the light source. |
公开日期 | 2002-09-10 |
申请日期 | 1999-03-09 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/35284] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED |
推荐引用方式 GB/T 7714 | BROUTIN, SCOTT L.,PLOURDE, JAMES KEVIN,STAYT, JR., JOHN WILLIAM. Method and apparatus for electrically switching a wavelength control system. US6449077. 2002-09-10. |
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