Xi'an Institute of Optics and Precision Mechanics,CAS
Optically modulatable higher harmonic wave light source and optical information processor using same | |
其他题名 | Optically modulatable higher harmonic wave light source and optical information processor using same |
TATENO KIMIO; MAIKERU MAKUROKURIN; TODA TAKESHI | |
1992-01-31 | |
专利权人 | HITACHI LTD |
公开日期 | 1992-01-31 |
授权国家 | 日本 |
专利类型 | 发明申请 |
摘要 | PURPOSE:To modulate a second harmonic wave in response to the intensity of an information signal by providing a laser active medium for forming a resonator to a reflecting surface, and a harmonic wave generating medium provided in the resonator to generate a hermonic wave, and applying an ultrasonic wave to any of them. CONSTITUTION:In an acoustic-optical element, a transducer 7 is bonded to a dielectric crystal 6 such as TeO2 (tellurium dioxide), PbMoO4 (lead molybdate), and an AC voltage of MHz or more is applied thereto to generate an ultrasonic wave 9. A compressional wave by such an ultrasonic wave 9 or an electro- optical wave can be regarded as a diffraction grating generated in a crystal. If it exists in the crystal, an incident laser beam 10 is diffracted to bent its propagation path. Thus, the ultrasonic wave is bent in the propagating direction of an incident laser basic wave or a second harmonic wave to turn ON, OFF the ultrasonic wave or to alter the amplitude. Thus, the intensity of the basic wave or its second harmonic wave can be modulated. |
其他摘要 | 目的:通过提供用于在反射表面上形成谐振器的激光有源介质,以及在谐振器中提供的谐波产生介质以产生谐波来调制响应于信息信号强度的二次谐波,并应用任何一个超声波。组成:在声光元件中,换能器7粘合到介电晶体6,如TeO2(二氧化碲),PbMoO4(钼酸铅),并施加MHz或更高的交流电压,以产生超声波9通过这种超声波9或电光波的压缩波可以被认为是在晶体中产生的衍射光栅。如果它存在于晶体中,则入射激光束10被衍射以弯曲其传播路径。因此,超声波在入射激光基波或二次谐波的传播方向上弯曲,以接通,关闭超声波或改变振幅。因此,可以调制基波或其二次谐波的强度。 |
主权项 | - |
申请日期 | 1990-05-25 |
专利号 | JP1992029383A |
专利状态 | 失效 |
申请号 | JP1990133821 |
公开(公告)号 | JP1992029383A |
IPC 分类号 | H01S3/094 | G02F1/35 | G02F1/37 | G02F1/377 | G11B7/125 | G11B7/127 | G11B7/128 | G11B7/135 | G11B7/1381 | H01S3/10 | H01S3/108 | H01S3/109 | H01S5/022 |
专利代理人 | - |
代理机构 | - |
文献类型 | 专利 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/59673 |
专题 | 半导体激光器专利数据库 |
作者单位 | HITACHI LTD |
推荐引用方式 GB/T 7714 | TATENO KIMIO,MAIKERU MAKUROKURIN,TODA TAKESHI. Optically modulatable higher harmonic wave light source and optical information processor using same. JP1992029383A[P]. 1992-01-31. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
JP1992029383A.PDF(156KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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