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1. 发明授权

US4016427A Apparatus for producing efficient second harmonic generation and frequency mixing 失效
标题翻译：用于生产高效二次谐波发生和频率混合的装置
公开(公告)号：US4016427A
公开(公告)日：1977-04-05
申请号：US650840
申请日：1976-01-21
申请人： Andrei Szilagyi , Audun Hordvik , Howard Roy Schlossberg
发明人： Andrei Szilagyi , Audun Hordvik , Howard Roy Schlossberg
IPC分类号： G02F1/35 , G02F1/37 , H02M5/04
CPC分类号： G02F1/37 , G02F1/3534
摘要： An apparatus for producing efficient second harmonic generation and frequency mixing having at least one crystal slice of predetermined thickness and preselected orientation mounted in optical alignment with an incoming laser beam. The proper orientation of the crystal slice together with the choice of laser polarization leads to efficient non-linear optical coupling with low reflection losses.
摘要翻译：一种用于产生有效的二次谐波产生和频率混合的装置，其具有至少一个具有预定厚度的晶片和与入射激光束光学对准安装的预选取向。晶体片的正确取向以及激光偏振的选择导致了具有低反射损耗的有效的非线性光耦合。

2. 发明授权

US4091681A Method for the simultaneous determination of low optical bulk and surface absorption coefficients in solids 失效
标题翻译：同时测定固体中低光学体积和表面吸收系数的方法
公开(公告)号：US4091681A
公开(公告)日：1978-05-30
申请号：US808495
申请日：1977-06-21
申请人： Audun Hordvik
发明人： Audun Hordvik
IPC分类号： G01N21/17 , G01H1/00
CPC分类号： G01N21/1702
摘要： A photoacoustic method of simultaneously determining optical bulk and surface absorption coefficients in solids in which a transducer is attached to the solid for measuring the amplitude of the acoustic wave generated by a beam of incident radiation as a function of distance of the transducer to the incident beam at a wavelength where bulk and surface losses, respectively, are heavily dominant. The transducer is chosen so as to give different functional dependencies for the bulk and surface absorption curves, respectively. The solid sample is also calibrated at wavelengths where bulk and surface absorption, respectively, are known. The output versus position or distance is measured at the wavelength of interest, and values of surface and bulk absorption coefficients are fitted to the respective pure curves so that they will add up to the experimentally generated composite curve. After the bulk and surface absorption curves have been determined for the wavelength of interest, the values of bulk and surface absorption coefficients can be determined by using the calibration constants found earlier.
摘要翻译：同时确定固体中的光学体积和表面吸收系数的光声法，其中换能器附接到固体，用于测量由入射辐射束产生的声波的幅度作为换能器与入射光束的距离的函数在波长上，体积和表面损失分别是主要的。选择传感器以分别为体积和表面吸收曲线提供不同的功能依赖性。固体样品也在分别已知体积和表面吸收的波长下校准。在感兴趣的波长处测量输出与位置或距离，并且将表面和体积吸收系数的值拟合到相应的纯曲线，使得它们将加到实验生成的复合曲线上。在已经确定感兴趣的波长的体积和表面吸收曲线之后，可以通过使用较早找到的校准常数来确定体积和表面吸收系数的值。

3. 发明授权

US07171093B2 Method for preparing an optical fibre, optical fibre and use of such 有权
标题翻译：制备光纤，光纤的方法及其用途
公开(公告)号：US07171093B2
公开(公告)日：2007-01-30
申请号：US10480374
申请日：2002-06-11
申请人： Jon Thomas Kringlebotn , Audun Hordvik
发明人： Jon Thomas Kringlebotn , Audun Hordvik
IPC分类号： G02B6/02 , G02B6/34 , G02B6/36
CPC分类号： G02B6/02104 , C03C25/104 , C03C25/1062 , C03C25/223 , C03C25/6208 , G02B6/02 , G02B6/02123 , G02B6/02185 , G02B6/02395
摘要： Methods for coating an optical fiber with optical fiber Bragg grating (FBG) with a hermetic coating, particularly a coating of carbon, are employed to avoid ingress of gases, vapors or fluids in the ambient environment. This ingress can be from water or hydrogen, which can diffuse in the fiber glass and cause deviation/drift in the measured Bragg measurements. Bragg gratings that maintain the grating strength at temperatures in excess of 1000° C. are used and can be formed by heating the fiber above 1000° C. in a chamber with a reactive gas that produces deposition of carbon.
摘要翻译：使用具有光纤布拉格光栅（FBG）的封装涂层，特别是碳涂层的光纤的方法用于避免在周围环境中进入气体，蒸汽或流体。这种入口可以来自水或氢，它们可以在玻璃纤维中扩散，并在测量的布拉格测量中引起偏差/漂移。使用在超过1000℃的温度下保持光栅强度的布拉格光栅，并且可以通过在具有产生碳沉积的反应性气体的室中将高于1000℃的纤维加热而形成。

4. 发明授权

US06343173B2 Gold coated signal cable 有权
标题翻译：镀金信号线
公开(公告)号：US06343173B2
公开(公告)日：2002-01-29
申请号：US09352138
申请日：1999-07-13
申请人： Audun Hordvik , Morten Eriksrud
发明人： Audun Hordvik , Morten Eriksrud
IPC分类号： G02B644
CPC分类号： G02B6/4492 , G02B6/4402
摘要： Signal cable for transmission of optical signals, especially in oil and gas wells, includes at least one elongated optical fiber, and an elongated, generally tubular container within which the optical fiber is disposed, the container having an inner wall and an outer wall, a space being defined between the optical fiber and the inner wall. At least one of the inner wall and the outer wall has a thin continuous surface coating of gold or a gold alloy.
摘要翻译：用于传输光信号的信号电缆，特别是在油气井中的信号电缆包括至少一根细长的光纤，以及细长的，通常管状的容器，光纤在该光纤内设置，容器具有内壁和外壁，在光纤和内壁之间限定空间。内壁和外壁中的至少一个具有金或金合金的薄的连续表面涂层。

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