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公开(公告)号：US5751872A
公开(公告)日：1998-05-12
申请号：US772527
申请日：1996-12-24
申请人： Hans Bissessur , Roland Mestric , Christian Duchet
发明人： Hans Bissessur , Roland Mestric , Christian Duchet
CPC分类号： G02B6/12011
摘要： The demultiplexer comprises a diffraction space defined by a reception surface coupled to a grating. In order to obtain output waves of flattened spectral response, the input waveguide and the reception surface are dimensioned so that the input wave diffracts over said surface and presents a plurality of secondary lobes. The demultiplexer is particularly applicable to optical communications systems with wavelength multiplexing.
摘要翻译： 解复用器包括由耦合到光栅的接收表面限定的衍射空间。 为了获得平坦的光谱响应的输出波，输入波导和接收表面的尺寸使得输入波在所述表面上衍射并呈现多个次级波瓣。 解复用器特别适用于具有波长复用的光通信系统。
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公开(公告)号：US06256426B1
公开(公告)日：2001-07-03
申请号：US09456907
申请日：1999-12-07
申请人： Christian Duchet
发明人： Christian Duchet
IPC分类号： G02F1035
CPC分类号： G02F1/025 , G02F2001/0153 , G02F2001/0154 , G02F2203/06
摘要： A semiconductor phase modulator comprises a lower cladding layer, an active waveguide and an upper cladding layer, deposited successively on a substrate made of III-V material. The active waveguide comprises at least one first active layer having a first photoluminescence wavelength and one second active layer of compensation having a second photoluminescence wavelength. The operating wavelength of the modulator is higher than the first photoluminescence wavelength by a value ranging from 80 to 200 nm, and it is greater than the second photoluminescence wavelength by a value of over 300 nm.
摘要翻译： 半导体相位调制器包括依次沉积在由III-V材料制成的衬底上的下包层，有源波导和上覆层。 有源波导包括具有第一光致发光波长的至少一个第一有源层和具有第二光致发光波长的补偿的一个第二有源层。 调制器的工作波长比第一光致发光波长高80〜200nm，并且比第二光致发光波长高300nm以上。
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公开(公告)号：US5655037A
公开(公告)日：1997-08-05
申请号：US343944
申请日：1994-11-17
申请人： Christian Duchet , Guy Le Roy
发明人： Christian Duchet , Guy Le Roy
CPC分类号： G02F1/313
摘要： Selection switches (C1, . . . , C3-4) enable an optical path (BC, C1, C2-1, C3-1, D1, B1) to be selected from a plurality of such paths predefined on a common substrate (PE), each of the switches belonging to a plurality of such paths for that purpose. Isolation switches (D1, . . . , DN) each belong to one such path only. The isolation switches are disposed at the ends of the paths so as to enable the selected path to be isolated from optical members (LEN) that are outside the selector and that are connected to the non-selected paths. In this way crosstalk is avoided. The invention applies in particular to backing up an optical link.
摘要翻译： 选择开关（C1，...，C3-4）使光路（BC，C1，C2-1，C3-1，D1，B1）能够从公共衬底（PE）上预定义的多个这样的路径中选择 ），为了该目的，每个开关属于多个这样的路径。 隔离开关（D1，...，DN）各自属于一个这样的路径。 隔离开关设置在路径的末端，以便使所选择的路径能够与选择器之外的光学构件（LEN）隔离并且连接到未选择的路径。 以这种方式避免了串扰。 本发明特别适用于备份光链路。
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公开(公告)号：US5652808A
公开(公告)日：1997-07-29
申请号：US575086
申请日：1995-12-19
CPC分类号： G02F1/125 , G02F2203/055
摘要： An acoustic-optical device for optical filtering includes two successive acoustic-optical interaction segments separated by an intermediate polarizer and each modifying the polarization of light guided by it. The modification depends on the frequencies of the interacting optical and acoustic waves. The acoustic waves are supplied symmetrically to the two interaction segments from a common electro-optical transducer. The transmission spectrum of the optical filter is subject to apodization by coupling between an auxiliary acoustic waveguide including the transducer and a main acoustic waveguide including the optical waveguide. Applications of the device include fiber optic telecommunication systems.
摘要翻译： 用于光学滤波的声光装置包括由中间偏振器分离的两个连续的声光相互作用段，并且每个修改由其引导的光的偏振。 修改取决于相互作用的光和声波的频率。 声波从公共电光换能器对称地提供给两个相互作用段。 滤光器的透射光谱通过包括换能器的辅助声波导和包括光波导的主声波导之间的耦合进行变迹。 该设备的应用包括光纤通信系统。
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5.发明授权
公开(公告)号：US5625735A
公开(公告)日：1997-04-29
申请号：US542726
申请日：1995-10-13
CPC分类号： G02B6/3812 , G02B6/4216 , G02B6/30 , G02B6/3861
摘要： In a method for fixing a polarization-preserving optical fiber the fiber is illuminated transversely and orientation of the polarization-preserving plane of the fiber is monitored by direct visual examination of internal components of the fiber rendered visible by such illumination. The illumination is effected through the wall of a transparent ferrule holding the fiber. The method has applications in fiber optical telecommunications systems.
摘要翻译： 在固定偏振保留光纤的方法中，光纤被横向照射，并且通过对通过这种照明可见的光纤的内部部件的直接目视检查来监视光纤的偏振保留平面的取向。 照明通过保持光纤的透明套圈的壁进行。 该方法在光纤通信系统中具有应用。
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公开(公告)号：US4683448A
公开(公告)日：1987-07-28
申请号：US689902
申请日：1985-01-09
申请人： Christian Duchet , Rene Martin
发明人： Christian Duchet , Rene Martin
CPC分类号： G02F1/225
摘要： High sensitivity interferential electro-optical modulator. The invention concerns an interferential electro-optical modulator. This modulator contains a Mach-Zehnder integrated interferometer in which each interferometer arm (24, 26) is overlapped by an electrode (40, 42), itself surrounded by two lateral electrodes (44, 46, 48, 50) to uniformize the electrical field crossing through each arm perpendicular to the face of the electro-optical crystall on which it is formed. Application to the detection of accoustic waves and low voltage measurement.
摘要翻译： 高灵敏度干涉电光调制器。 本发明涉及一种干涉式电光调制器。 该调制器包括马赫 - 曾德尔（Mach-Zehnder）集成干涉仪，其中每个干涉仪臂（24,26）由电极（40,42）重叠，其本身被两个横向电极（44,46,48,50）包围以使电场均匀化 跨越垂直于其所形成的电光结晶的表面的每个臂。 应用于检测声波和低电压测量。
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