公开(公告)号：US5712717A

公开(公告)日：1998-01-27

申请号：US609519

申请日：1996-03-01

申请人： Andre Hamel ,  Daniel Laville ,  Eric Delevaque

发明人： Andre Hamel ,  Daniel Laville ,  Eric Delevaque

IPC分类号： G02B6/34 ,  H04J14/02

CPC分类号： G02B6/29317 ,  G02B6/29361 ,  G02B6/29383 ,  H04J14/0206 ,  H04J14/0213 ,  H04J14/0209

摘要： According to the invention, a first band-pass multidielectric filter (F1) receives optical signals, transmits at least one of them and reflects the untransmitted signals. An adding means (F2) inserts among them at least one other optical signal. A photoinduced Bragg grating filter (R) receives the signals reflected by the first filter and transmits them to the adding means and reflects any optical signal of the same wavelength as the signal transmitted by the first filter and which is liable to exist among the signals reflected by it. Application to optical telecommunications.

摘要翻译： 根据本发明，第一带通多电介质滤波器（F1）接收光信号，发送它们中的至少一个并反映未发送的信号。 加法装置（F2）在其中插入至少一个其它光信号。 光电布拉格光栅滤波器（R）接收由第一滤波器反射的信号，并将它们发送到加法装置，并将与由第一滤波器传输的信号相同波长的任何光信号反射出来， 通过它。 应用于光通信。

公开(公告)号：US06516118B1

公开(公告)日：2003-02-04

申请号：US09715515

申请日：2000-11-16

申请人： Laurent Brilland ,  David Pureur ,  Jean-François Bayon ,  Eric Delevaque

发明人： Laurent Brilland ,  David Pureur ,  Jean-François Bayon ,  Eric Delevaque

IPC分类号： G02B634

CPC分类号： G02B6/021 ,  G02B6/0218

摘要： An optical fiber for producing energy-dissipative and wavelength—selective filters is presented. The fiber includes a core and a cladding that are photosensitive to radiation and have a periodic perturbation of the refractive index. The periodic perturbation defines at least one Bragg grating with lines tilted with respect to the axis of the fiber. The refractive index difference between the core and the cladding is less than 3×10−3.

摘要翻译： 提出了一种用于产生耗能和波长选择性滤波器的光纤。 光纤包括对辐射敏感并具有折射率的周期扰动的芯和包层。 周期扰动定义了至少一个布线光栅，其中线相对于光纤的轴线倾斜。 芯和包层之间的折射率差小于3×10 -3。

公开(公告)号：US5726785A

公开(公告)日：1998-03-10

申请号：US604417

申请日：1996-02-21

申请人： Mouhammad Jamil Chawki ,  Eric Delevaque ,  Valerie Tholey

发明人： Mouhammad Jamil Chawki ,  Eric Delevaque ,  Valerie Tholey

IPC分类号： G02B6/34 ,  H04J14/02

CPC分类号： G02B6/2932 ,  G02B6/29322 ,  G02B6/29383 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  G02B6/02195 ,  G02B6/29328 ,  G02B6/29329 ,  H04J14/0209

摘要： This multiplexer adds to a group of optical signals, whose wavelengths belong to a group of wavelengths (.lambda.1 . . . .lambda.N) and drop from said group of signals at least one optical signal having a given wavelength, chosen from within the wavelength group and comprises at least one optical circulator (C1, C2) having an input for receiving the group of signals and an output, an optical selection means (MS) coupled, on one side, to the circulator and which comprises at least one photoinduced Bragg grating (R1 . . . RN), said photoinduced Bragg grating being associated with the given wavelength and which can be in a first state, where it reflects the signal having said given wavelength and where it transits signals having a wavelength different from the given wavelength or optionally in a second state where it transmits all the signals, and a means (MC) for the control of said selection means (MS) for placing the grating in said second state, the selection means cooperating with each optical circulator for adding and dropping the optical signal or signals. Application to optical telecommunications.

摘要翻译： 该多路复用器将一组光信号添加到一组光信号中，该组信号的波长属于一组波长（λ1.λN），并且从所述信号组下降至少一个具有给定波长的光信号，该波长选自波长组 并且包括至少一个光环行器（C1，C2），其具有用于接收所述信号组和输出的输入端;光学选择装置（MS），其在一侧耦合到所述环行器，并且包括至少一个光致导电的布拉格光栅 （R1 ... RN），所述光诱导布拉格光栅与给定波长相关联并且可以处于第一状态，其中它反射具有所述给定波长的信号，并且其中它转移具有不同于给定波长的波长的信号， 可选地在其发送所有信号的第二状态中，以及用于控制所述选择装置（MS）以将光栅置于所述第二状态的装置（MC），所述选择装置与eac协作 h光环行器，用于添加和删除光信号或信号。 应用于光通信。