Optical spectrum analyzer

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	Optical spectrum analyzer
其他题名	Optical spectrum analyzer
	HATORI, MASAMI
	1991-11-19
专利权人	FUJIFILM CORPORATION
公开日期	1991-11-19
授权国家	美国
专利类型	授权发明
摘要	An optical spectrum analyzer includes a surface elastic wave generator for generating in an optical waveguide a surface elastic wave which has a continuously varying frequency and which diffracts and deflects a guided wave as it travels across the path of the guided wave, which guided wave is introduced as a measured light beam into and travels in the optical wave guide. The measured light beam which has been deflected is emitted from the optical waveguide and detected by a light detector. A modulator turns on and off or modulates the surface elastic wave by repeatedly energizing and de-energizing the surface elastic wave generator, the frequency of the modulation being lower than the continuously varying frequency. A filter receives a signal corresponding to the modulation frequency from the modulator and a signal corresponding to the measured light beam from the detector, and extracts a signal component having the same frequency as the modulation frequency from the signal received from the light detector. The frequency of the surface elastic wave is detected on the basis of the signal component extracted by the filler when the measured light beam is detected by the light detector.
其他摘要	一种光谱分析仪，包括表面弹性波发生器，用于在光波导中产生表面弹性波，该表面弹性波具有连续变化的频率，并且当导波穿过导波的路径时衍射和偏转导波，该导波被引入作为测量光束进入光波导并在光波导中传播。已经偏转的测量光束从光波导发射并由光检测器检测。调制器通过反复激励和去激励表面弹性波发生器来接通和断开或调制表面弹性波，调制频率低于连续变化的频率。滤波器接收与来自调制器的调制频率对应的信号和与来自检测器的测量光束对应的信号，并从接收自光检测器的信号中提取具有与调制频率相同的频率的信号分量。当光检测器检测到测量光束时，基于由填充物提取的信号分量检测表面弹性波的频率。
申请日期	1989-07-18
专利号	US5066126
专利状态	失效
申请号	US07/385746
公开（公告）号	US5066126
IPC 分类号	G01J3/00 \| G01J3/12 \| G01J1/42 \| G02F1/11 \| G02F1/125 \| G01J3/28 \| G01J3/06 \| G02B6/10
专利代理人	-
代理机构	SUGHRUE,MION,ZINN,MACPEAK & SEAS
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/34415
专题	半导体激光器专利数据库
作者单位	FUJIFILM CORPORATION
推荐引用方式 GB/T 7714	HATORI, MASAMI. Optical spectrum analyzer. US5066126[P]. 1991-11-19.

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US5066126.PDF（218KB）	专利		开放获取	CC BY-NC-SA	请求全文