公开(公告)号：US07304797B2

公开(公告)日：2007-12-04

申请号：US11143800

申请日：2005-06-03

申请人： Ashok Balakrishnan ,  Serge Bidnyk ,  Matt Pearson

发明人： Ashok Balakrishnan ,  Serge Bidnyk ,  Matt Pearson

IPC分类号： G02B5/18

CPC分类号： G02B6/29326 ,  G02B6/29328 ,  G02B6/2938

摘要： The invention relates to a planar waveguide reflective diffraction grating for use in an optical device, such as a wavelength division multiplexer, providing an increased bandwidth over conventional planar waveguide reflection diffraction gratings while eliminating the polarization dependent loss (PDL) typically associated therewith. The multiplexer/demultiplexer according to the present invention includes input and output ports optimally positioned in accordance with the grating facet diffraction envelope to minimized back reflection to the input ports and maximize output light collected from different diffraction orders.

摘要翻译： 本发明涉及一种用于诸如波分复用器的光学装置中的平面波导反射衍射光栅，其提供比常规平面波导反射衍射光栅更大的带宽，同时消除通常与其相关联的偏振相关损耗（PDL）。 根据本发明的多路复用器/解复用器包括根据光栅面衍射包络最佳定位的输入和输出端口，以最小化对输入端口的反射，并使从不同衍射级收集的输出光最大化。

公开(公告)号：US20070230871A1

公开(公告)日：2007-10-04

申请号：US11690314

申请日：2007-03-23

申请人： Serge Bidnyk ,  Ashok Balakrishnan ,  Matt Pearson

发明人： Serge Bidnyk ,  Ashok Balakrishnan ,  Matt Pearson

IPC分类号： G02B6/34

CPC分类号： G02B6/12007 ,  G02B6/124 ,  G02B6/29329

摘要： A planar lightwave circuit including a slab waveguide, with a plurality of different diffraction filtering elements optically coupling a plurality of input and output ports, provides various optical functionalities including multiplexing, demultiplexing, diplexer and triplexer. In the basic configuration one or more output ports are optically coupled to an input port via grating filters etching in the cladding of the slab waveguide, and an additional port is optically coupled to the input port via a diffraction grating etched in an endwall of the slab waveguide. A triplexer platform can be provided by optically coupling photo-detectors to two output ports, which receive wavelength channels demultiplexed from an input signal by two cladding etched filters, and by optically coupling a laser to another input port, which launches an outgoing laser signal at the endwall etched grating filter for coupling into the same fiber that launched the original input signal.

摘要翻译： 包括平板波导的平面光波电路具有光耦合多个输入和输出端口的多个不同的衍射滤光元件，提供包括复用，解复用，双工器和三工器的各种光学功能。 在基本配置中，一个或多个输出端口通过在平板波导的包层中的光栅滤波器蚀刻光耦合到输入端口，并且附加端口通过蚀刻在板的端壁中的衍射光栅光学耦合到输入端口 波导。 可以通过将光电检测器光耦合到两个输出端口来提供三工器平台，两个输出端口接收由两个包层蚀刻滤波器从输入信号解复用的波长信道，以及通过光学耦合激光器到另一个输入端口，该另一个输入端口 端壁蚀刻光栅滤波器，用于耦合到发射原始输入信号的相同光纤。