公开(公告)号：US06175445B1

公开(公告)日：2001-01-16

申请号：US09305659

申请日：1999-05-05

申请人： Bertrand Desthieux ,  Laurent Gasca ,  Christian Le Sergent ,  Christophe Sinet

发明人： Bertrand Desthieux ,  Laurent Gasca ,  Christian Le Sergent ,  Christophe Sinet

IPC分类号： H01S300

CPC分类号： C03C13/04 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/1608 ,  H01S3/1693 ,  H01S2301/04

摘要： The invention relates to an optical fiber having a core based on silica with at least one fluorescent dopant distributed over the entire section of the core, a central zone co-doped with a co-dopant chosen from Al and P, and a peripheral zone co-doped with the other co-dopant chosen from Al and P. The invention can be used in an optical fiber amplifier, and it guarantees good amplifier gain flatness over a wavelength band suitable for WDM transmission.

摘要翻译： 本发明涉及一种光纤，其具有基于二氧化硅的核，其具有分布在芯的整个部分上的至少一种荧光掺杂剂，共掺杂有选自Al和P的共掺杂剂的中心区域和外围区域co 与选自Al和P的其他共掺杂剂掺杂。本发明可用于光纤放大器，并且在适合于WDM传输的波长带上保证良好的放大器增益平坦度。

公开(公告)号：US06246513B1

公开(公告)日：2001-06-12

申请号：US09225781

申请日：1999-01-05

申请人： Dominique Bayart ,  Bertrand Desthieux

发明人： Dominique Bayart ,  Bertrand Desthieux

IPC分类号： H01S300

CPC分类号： H04B10/2935 ,  H04B10/2912

摘要： The invention relates to optical fiber apparatus comprising an amplifier having optimal gain excursion over a given wavelength band for given input power, and a filter having a bell-shaped transfer function, with the center wavelength of the filter being tunable over a range that is sufficient to enable the gain excursion of the amplifier over said wavelength band to be reduced when the power received by the amplifier is different from said given input power. The invention makes it possible to match amplifier apparatuses to line losses while minimizing overall loss.

摘要翻译： 本发明涉及一种光纤设备，包括一个具有给定输入功率的给定波长带上的最佳增益偏移的放大器和具有钟形传递函数的滤波器，滤波器的中心波长在足够的范围内可调 当放大器接收到的功率与所述给定的输入功率不同时，能够减小放大器在所述波长带上的增益偏移。 本发明使得可以将放大器装置与线损相匹配，同时最小化整体损耗。

公开(公告)号：US5815299A

公开(公告)日：1998-09-29

申请号：US709152

申请日：1996-09-06

申请人： Dominique Bayart ,  Bertrand Desthieux

发明人： Dominique Bayart ,  Bertrand Desthieux

IPC分类号： H03G3/30 ,  H04B10/294 ,  H04J14/02 ,  H04B10/00

CPC分类号： H04B10/2941 ,  H03G3/3084 ,  H04J14/0221

摘要： A method for equalizing power levels of channels of an optical frequency division multiplexed signal determines the power level of each channel of the optical frequency division multiplexed signal and introduces attenuation into the channels having high power levels corresponding to the difference between a level deduced from these high levels and a low reference level. The equalization system includes at least one optical equalizer module which measures the optical power levels of the channels of the signal to be monitored, a processor for implementing the method and variable attenuators controlled by the processor and operating separately on the power levels of the channels.

摘要翻译： 一种用于均衡光分频复用信号的信道功率电平的方法决定了光分频复用信号的每个信道的功率电平，并将衰减引入到具有高功率电平的信道中，该信道对应于从这些高 水平和低参考水平。 均衡系统包括至少一个光学均衡器模块，其测量待监视信号的信道的光功率电平，用于实现由处理器控制的方法和可变衰减器的处理器，并且独立地对信道的功率电平进行操作。

公开(公告)号：US06690889B2

公开(公告)日：2004-02-10

申请号：US09726038

申请日：2000-11-30

申请人： Bertrand Desthieux ,  François-Xavier Ollivier ,  Denis Penninckx

发明人： Bertrand Desthieux ,  François-Xavier Ollivier ,  Denis Penninckx

IPC分类号： H04B1012

CPC分类号： H04B10/2569

摘要： The present invention is a device to increase the bit rate and distance at which data can be transmitted by optical fiber. The device compensates the polarization dispersion of the line by processing a received optical signal with the use of a polarization controller, the generation of a differential group delay between two orthogonal polarization modes and a control unit for the polarization controller. The data that is sent is redundant to enable detection of errors affecting the data received and the control unit is adapted to minimize the error rate calculated in real time by using the redundant data. The application of the device is to long-haul optical transmission, in particular over stranded fibers.

摘要翻译： 本发明是提高数据可以由光纤传输的比特率和距离的装置。 该装置通过使用偏振控制器处理接收的光信号，产生两个正交偏振模式之间的差分组延迟和用于偏振控制器的控制单元来补偿线的偏振色散。 发送的数据是冗余的，以便能够检测影响接收到的数据的错误，并且控制单元适合于通过使用冗余数据来最小化实时计算的错误率。 该设备的应用是长距离光学传输，特别是在多股纤维上。

公开(公告)号：US5914795A

公开(公告)日：1999-06-22

申请号：US837917

申请日：1997-04-11

申请人： Amaury Jourdan ,  Bertrand Desthieux

发明人： Amaury Jourdan ,  Bertrand Desthieux

IPC分类号： H04B10/291 ,  H04J14/02 ,  H04J14/08

CPC分类号： H04J14/0221 ,  H04B10/291 ,  H04B10/2912 ,  H04B2210/003

摘要： To optimize the amplification in a device for extracting channels from a wavelength division multiplex, the following steps are carried out in succession: a first amplification step with a first gain, a wavelength selection step, and a second amplification step with a second gain. The first and second gains respectively confer upon the output optical signal a fixed signal to noise ratio and a particular optical power. Applications include optical transmission networks.

摘要翻译： 为了优化用于从波分复用提取通道的设备中的放大，接下来的步骤是：具有第一增益的第一放大步骤，波长选择步骤和具有第二增益的第二放大步骤。 第一和第二增益分别赋予输出光信号固定的信噪比和特定的光功率。 应用包括光传输网络。