发明名称 |
Wavelength characteristic measuring device and method using light having wavelength thereof continuously changed |
摘要 |
A wavelength variable light source emits a light whose wavelengths continuously change from a preset start wavelength up to a stop wavelength to a measuring object. A timing information output section generates timing information showing emission timings of lights emitted from the wavelength variable light source and having start and stop wavelengths and a plurality of wavelengths obtained by delimiting the wavelengths between the start and stop wavelengths in predetermined steps. A light receiving section receives the light output from the measuring object and outputs a signal showing a measured value of a received light. A plurality of amplifiers receive the signal output from the light receiving section and amplify the signal at each predetermined amplification factor. A signal selecting section selects one signal kept in a predetermined measuring range of signals amplified by the plurality of amplifiers at the each predetermined amplification factor and outputs the one signal as a measured value of a light of a wavelength decided in accordance with corresponding timing information in the information output from the timing information output section.
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申请公布号 |
US6870618(B2) |
申请公布日期 |
2005.03.22 |
申请号 |
US20020311121 |
申请日期 |
2002.12.13 |
申请人 |
ANRITSU CORPORATION |
发明人 |
SUGIMOTO TAKASHI;OHTATEME HIROAKI |
分类号 |
G01J1/18;G01J3/06;G01J3/12;G01M11/00;(IPC1-7):G01J3/28 |
主分类号 |
G01J1/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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