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公开(公告)号：US5944867A
公开(公告)日：1999-08-31
申请号：US26120
申请日：1998-02-19
IPC分类号： C03B37/012 , C03B37/028
CPC分类号： G02B6/02042 , C03B37/01222 , C03B37/027 , C03B2203/34
摘要： A method of manufacturing a multi-core optical fiber, the method including assembling together a plurality of substantially identical single-core optical fiber preforms (2', 2"), referred to as "single-core preforms", each of which includes a core bar (3) surrounded by a layer of optical cladding (4), so as to form a "multi-core preform" (10) and drawing down the multi-core preform (10) so as to obtain the multi-core optical fiber. The assembly step includes securing the single-core preforms (2', 2") to one another by fusing them over their entire lengths or over portions thereof along their tangential lines of contact (T), without inserting the multi-core preform (10) into a holding tube. A vacuum is maintained in the preform during the drawing step, the vacuum being formed before or during the drawing step.
摘要翻译： 一种制造多芯光纤的方法，所述方法包括将多个基本上相同的单芯光纤预制棒（2'，2“）组装在一起，被称为”单芯预制棒“，每个包括 由光学包层（4）包围的芯棒（3），以形成“多芯预制棒”（10）并拉下多芯预制棒（10）以获得多芯 光纤。 组装步骤包括通过将单芯预成型件（2'，2“）彼此的整个长度或其部分沿其切线（T）熔合而彼此固定，而不插入多芯预制件 10）进入保持管。 在拉伸步骤期间在预成型件中保持真空，在拉拔步骤之前或期间形成真空。
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公开(公告)号：US5792233A
公开(公告)日：1998-08-11
申请号：US560796
申请日：1995-11-21
IPC分类号： C03B37/012 , C03B37/028
CPC分类号： G02B6/02042 , C03B37/01222 , C03B37/027 , C03B2203/34
摘要： A method of manufacturing a multi-core optical fiber, the method including assembling together a plurality of substantially identical polished single-core optical fiber preforms (2', 2"), referred to as "single-core preforms", each of which includes a core bar (3) surrounded by a layer of optical cladding (4), so as to form a "multi-core preform" (10), and drawing down the multi-core preform (10) so as to obtain the multi-core optical fiber. The assembly step includes securing the single-core preforms (2', 2") to one another by fusing them over their entire lengths or over portions thereof along their tangential lines of contact (T), without inserting the multi-core preform (10) into a holding tube. A vacuum is maintained in the preform during the drawing step, the vacuum being formed before or during the drawing step.
摘要翻译： 一种制造多芯光纤的方法，该方法包括将多个基本相同的抛光单芯光纤预制棒（2'，2“）组装在一起，被称为”单芯预制棒“ 包括由光学包层（4）包围的芯棒（3），以形成“多芯预制棒”（10），并拉下多芯预制棒（10）以获得多 芯光纤。 组装步骤包括通过将单芯预成型件（2'，2“）彼此的整个长度或其部分沿其切线（T）熔合而彼此固定，而不插入多芯预制件 10）进入保持管。 在拉伸步骤期间在预成型件中保持真空，在拉拔步骤之前或期间形成真空。
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公开(公告)号：US5655040A
公开(公告)日：1997-08-05
申请号：US572717
申请日：1995-12-14
申请人： Jose Chesnoy , Isabelle Riant , Pierre Sansonetti
发明人： Jose Chesnoy , Isabelle Riant , Pierre Sansonetti
CPC分类号： G03F7/70283 , G02B6/02133 , G02B6/02138 , G02B6/02152 , G03F7/7035
摘要： A laser source supplies a primary laser beam. A phase grating generates two secondary beams from the primary beam so as to form interference fringes that are inscribed in an optical fiber by photo-refraction. An optical system of variable focal length varies the gap between the interference fringes so as to vary the pitch of the Bragg grating discretely for successive segments of the optical fiber. Means displace the primary laser beam and the optical fiber relative to each other by successive segments of said fiber. These means are synchronized with the variation of the focal length of the optical system. Application to telecommunications.
摘要翻译： 激光源提供主激光束。 相位光栅从主光束产生两个次光束，以便通过光折射形成内接在光纤中的干涉条纹。 可变焦距的光学系统改变干涉条纹之间的间隙，以便为光纤的连续段离散地改变布拉格光栅的间距。 意味着主激光束和光纤相对于所述光纤的连续部分彼此相对移位。 这些装置与光学系统的焦距的变化同步。 应用于电讯业。
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4.发明授权Method of and system for writing a bragg grating point by point by point in an optical fiber 失效在光纤中逐点写入布拉格光栅的方法和系统
公开(公告)号：US5768454A
公开(公告)日：1998-06-16
申请号：US772514
申请日：1996-12-24
申请人： Jose Chesnoy , Pierre Sansonetti , Isabelle Riant
发明人： Jose Chesnoy , Pierre Sansonetti , Isabelle Riant
CPC分类号： G02B6/02138
摘要： A system for writing a Bragg grating point-by-point in an optical waveguide includes an illumination system for producing a primary beam. It further includes a diffraction grating to receive the primary beam and to produce a zero order secondary beam and two symmetrical secondary beams of higher order and a focusing optical device for focusing the secondary beams onto a writing area of the waveguide. The diffraction grating and the focusing optical device define an intensity function of writing in the area of the guide including a central peak and two secondary peaks spaced from the central peak by a distance equal to the pitch of the grating.
摘要翻译： 在光波导中逐点写入布拉格光栅的系统包括用于产生主光束的照明系统。 它还包括一个衍射光栅，用于接收一次光束，并产生一个零级二次光束和两个高阶对称次级光束，以及一个聚焦光学器件，用于将二次光束聚焦在波导的写入区域上。 衍射光栅和聚焦光学器件限定了在引导区域中写入的强度函数，其包括中心峰值和与中心峰值间隔开距离等于光栅间距的两个次级峰值。
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5.发明申请Fiber for compensation of the cumulative chromatic dispersion in a fibre with negative chromatic dispersion 审中-公开用于补偿具有负色散的光纤中的累积色散的光纤公开(公告)号：US20060039661A1
公开(公告)日：2006-02-23
申请号：US11256961
申请日：2005-10-25
申请人： Cyril Ruilier , Sebastien Bigo , Jose Chesnoy , Pierre Sansonetti
发明人： Cyril Ruilier , Sebastien Bigo , Jose Chesnoy , Pierre Sansonetti
IPC分类号： G02B6/02
CPC分类号： G02B6/02014 , G02B6/02023 , G02B6/02271 , G02B6/0228 , G02B6/03644 , G02B6/29377 , H04B10/2525
摘要： The fibre is adapted to compensation of the chromatic dispersion and chromatic dispersion slope of an optical fibre with negative chromatic dispersion. It has, in a propagation mode other than the fundamental mode, a positive chromatic dispersion and a negative chromatic dispersion slope. The fibre can be used in compensation dispersion modules or as line fibre, in transmission systems using line fibre with negative chromatic dispersion.
摘要翻译： 该光纤适用于补偿具有负色散的光纤的色散和色散斜率。 在基本模式以外的传播模式中，具有正色散和负色散斜率。 光纤可用于补偿色散模块或线路光纤，在使用带有负色散的线路光纤的传输系统中。
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公开(公告)号：US06535669B2
公开(公告)日：2003-03-18
申请号：US09849354
申请日：2001-05-07
IPC分类号： G02B634
CPC分类号： G02B6/278 , G02B6/02109 , G02B6/02138 , G02B6/022 , G02B6/29317
摘要： The invention relates to polarization mode dispersion; writing index variations in a grating written in an optical fiber generates polarization mode dispersion. The invention proposes to compensate this polarization mode dispersion by mechanical curvature of the fiber. The invention provides a simple method of compensating polarization mode dispersion effectively and improving the performance of a grating written in a fiber; it applies in particular to Bragg gratings.
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公开(公告)号：USRE37457E1
公开(公告)日：2001-11-27
申请号：US09158145
申请日：1998-09-22
IPC分类号： G02B626
CPC分类号： G02B6/02014 , G02B6/02271 , G02B6/02276 , G02B6/0281 , G02B6/03611 , G02B6/03644
摘要： Dispersion-shifted monomode optical fibers have an effective mode surface area greater than 65 &mgr;m2 by optimization of the geometrical characteristics that characterize the fibers.
摘要翻译： 通过优化表征纤维的几何特征，色散位移单模光纤具有大于65mum2的有效模式表面积。
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公开(公告)号：US5636054A
公开(公告)日：1997-06-03
申请号：US534209
申请日：1995-09-26
申请人： Serge Artigaud , Jean Hervo , Pierre Sansonetti
发明人： Serge Artigaud , Jean Hervo , Pierre Sansonetti
CPC分类号： H01S3/06754 , H01S3/1301 , H01S2301/04 , H01S3/2333
摘要： An optical amplifier of the type including an inlet for a light signal to be amplified and an outlet for an amplified light signal that has been amplified by means of an amplifying waveguide that is controlled by regulation light coming from a pumping diode; the amplifier comprising: an optical circulator having an inlet port receiving the light signal to be amplified, an outlet port delivering the amplified light signal, and two intermediate ports, the first of the intermediate ports being connected to the amplifying waveguide; and regulation means having an inlet connected to the second of the intermediate ports and an outlet connected to the pumping diode, whereby the amplifying waveguide has equalized gain for all of the carrier waves constituting the amplified light signal.
摘要翻译： 一种光放大器，其类型包括用于待放大的光信号的入口和放大的光信号的出口，该放大的光信号已经通过由调节来自泵浦二极管的光控制的放大波导放大; 所述放大器包括：光循环器，具有接收要放大的光信号的入口端口，输出放大的光信号的出口端口和两个中间端口，所述第一中间端口连接到放大波导; 并且调节装置具有连接到第二中间端口的入口和连接到泵浦二极管的出口，由此放大波导具有对构成放大的光信号的所有载波的均衡增益。
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公开(公告)号：US4648940A
公开(公告)日：1987-03-10
申请号：US806802
申请日：1985-12-10
申请人： Louis Menigaux , Pierre Sansonetti
发明人： Louis Menigaux , Pierre Sansonetti
IPC分类号： H01L21/308 , H01L33/00 , H01S5/00 , H01S5/20 , H01S5/227 , H01L21/306 , B44C1/22 , H01L21/205 , H01L21/22
CPC分类号： H01L33/0062 , H01S5/20 , H01S5/227 , H01S5/2059 , H01S5/2275
摘要： Process for manufacturing a semiconductor laser having a buried ribbon. After making a double heterostructure (2, 3, 4, 5) on a substrate (1), there is implanted in the contact layer (5) a p-type doping material, which has the effect of rendering it amorphous. The unit, except for a ribbon, is etched which leaves a mesa. A resumption of epitaxy makes it possible to bury the channel. This resumption does not lead to a crystalline growth on the upper surface of the contact layer, although the annealing that takes place during the resumption of epitaxy gives good ohmic contacts at the level of the implanted layer.
摘要翻译： 具有掩埋带的半导体激光器的制造方法。 在衬底（1）上制造双异质结构（2,3,4,5）之后，在接触层（5）中注入p型掺杂材料，其具有使其变为无定形的效果。 除了丝带之外，该单元被蚀刻，留下台面。 恢复外延使得可以掩埋通道。 这种恢复不会导致接触层的上表面上的结晶生长，尽管在恢复外延期间发生的退火在注入层的水平上产生良好的欧姆接触。
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公开(公告)号：US5887094A
公开(公告)日：1999-03-23
申请号：US921323
申请日：1997-08-29
申请人： Fatima Bakhti , Isabelle Riant , Pierre Sansonetti
发明人： Fatima Bakhti , Isabelle Riant , Pierre Sansonetti
CPC分类号： G02B6/02095 , G02B6/12007 , G02B6/14 , G02B2006/12107 , G02B2006/12109 , G02B6/02085 , G02B6/29317 , G02B6/29389
摘要： A band-pass filter written into an optical waveguide includes at least one Bragg grating creating coupling between two propagation modes. In one version the pitch of the grating is equal to the length of beating of these two modes, to create codirectional coupling for the LP01 and LP0i modes. In another version the grating couples the LP01 mode to any contradirectional radiation mode. The filter includes, at one point at least of the grating, an area in which one half-period of the grating is omitted to create a phase-shift of .pi. between the two coupled modes.
摘要翻译： 写入光波导的带通滤波器包括至少一个布拉格光栅，其产生两个传播模式之间的耦合。 在一个版本中，光栅的间距等于这两种模式的跳动长度，以创建LP01和LP0i模式的编码耦合。 在另一个版本中，光栅将LP01模式耦合到任何对向辐射模式。 滤波器在至少光栅的一个点处包括省略光栅的一个半周期以在两个耦合模式之间产生pi的相移的区域。
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