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公开(公告)号：US3922622A
公开(公告)日：1975-11-25
申请号：US49664574
申请日：1974-08-12
Applicant: BELL TELEPHONE LABOR INC
Inventor： BOYD GARY DELANE , COLDREN LARRY ALLEN
Abstract: Guided elastic waves are propagated in a waveguide, including a central core region and an outer cladding region. The bulk shear elastic wave velocity in the cladding region is larger than in the core region. The thickness of the cladding region is sufficient so that the particle displacement profile falls nearly to zero before reaching the outer surface of the cladding region. The waveguide is mounted in any suitable medium for protecting it against external mechanical shock and for providing any necessary mechanical support therefor. Different guide configurations and both torsional mode and radial mode transducers are shown.
Abstract translation: 引导弹性波在包括中心芯区域和外包层区域的波导中传播。 包层区域的体积剪切弹性波速度大于核心区域。 包层区域的厚度足以使粒子位移分布在到达包层区域的外表面之前几乎下降到零。 波导安装在任何合适的介质中，用于保护波导免受外部机械冲击并提供任何必要的机械支撑。 示出了不同的引导配置以及扭转模式和径向模式换能器。
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公开(公告)号：US3675039A
公开(公告)日：1972-07-04
申请号：US3675039D
申请日：1971-02-09
Applicant: BELL TELEPHONE LABOR INC
Inventor： BOYD GARY DELANE , BUEHLER ERNEST , GANDRUD WILLIAM BENTLEY
CPC classification number: G02F1/39
Abstract: An upconverting receiver for modulated radiation at a carrier wavelength of 10.6 micrometers and a tunable parametric oscillator operating in the infrared portion of the spectrum are disclosed, in each of which a zinc germanium phosphide (ZnGeP2) crystal is employed as the interaction medium and is pumped by a laser operating substantially at 1.06 micrometers in the infrared in a direction substantially normal to the optic axis. This crystal is presently unique in providing phase matching nearly normal to the optic axis for sum frequency upconversion from a signal wavelength of 10.6 micrometers.
Abstract translation: 公开了一种用于106微米载波波长的调制辐射的上变频接收机和在该光谱的红外部分中操作的可调谐参数振荡器，其中每个使用磷酸锌锗（ZnGeP 2）晶体作为相互作用介质并被泵浦 通过在基本上垂直于光轴的方向上在红外线中基本上操作为1.06微米的激光器。 目前这种晶体是独特的，提供几乎垂直于光轴的相位匹配，用于从10.6微米的信号波长进行和频上变频。
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