公开(公告)号：US20050068602A1

公开(公告)日：2005-03-31

申请号：US10663132

申请日：2003-09-16

申请人： Maurizio Tormen ,  Matteo Cherchi ,  Hermann Haus ,  Eleanor Haus

发明人： Maurizio Tormen ,  Matteo Cherchi ,  Hermann Haus ,  Eleanor Haus

IPC分类号： G02B6/12 ,  H04J14/02 ,  G02F1/03 ,  G02F1/07

CPC分类号： G02B6/12007 ,  G02B6/12004 ,  H04J14/02 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0219

摘要： An add-filter device includes a plurality of ring resonators that are arranged to receive an optical signal of a specific wavelength and channel to be added onto a bus line that is arranged to receive a plurality of signals. At least one Mach-Zehnder Interferometer (MZI) structures embedded in the plurality of ring resonators. The at least one MZI structure and ring resonators provide the necessary modulation and filtering so that the optical signal can be added to the bus line without affecting the channels contained in the bus line.

摘要翻译： 附加滤波器装置包括多个环形谐振器，其被布置为接收要被添加到被布置为接收多个信号的总线上的特定波长和信道的光信号。 至少一个嵌入在多个环形谐振器中的马赫 - 曾德干涉仪（MZI）结构。 至少一个MZI结构和环形谐振器提供必要的调制和滤波，使得光信号可以被添加到总线而不影响总线中包含的通道。

公开(公告)号：US06591039B2

公开(公告)日：2003-07-08

申请号：US09991451

申请日：2001-11-16

申请人： Elisabetta F. Rondinella ,  Maurizio Tormen

发明人： Elisabetta F. Rondinella ,  Maurizio Tormen

IPC分类号： G02B634

CPC分类号： G02B6/02138 ,  G02B6/02152

摘要： A method for writing a Bragg grating in a waveguide comprises the steps of placing the waveguide in a writing position in which the waveguide extends essentially along one axis; generating a beam of ultraviolet radiation; executing a first and a second scan with the said beam along the waveguide through a phase mask, in such a way as to generate interference fringes capable of modifying the refractive index along the said waveguide in a predetermined way; moving the phase mask, during the first or the second scan, with an oscillatory motion about one of its equilibrium positions and along a direction lying at an angle of less than 90° to the axis of the said waveguide, in such a way as to produce, in this scan, an essentially zero envelope of the refractive index; and varying the intensity of the energy of the ultraviolet radiation in a controlled way along the waveguide during the first and the second scan, for example by controlling the scanning velocity.