公开(公告)号：WO2002088806A1

公开(公告)日：2002-11-07

申请号：PCT/US2002/013306

申请日：2002-04-26

Applicant: OPTERA INCORPORATED

Inventor： YANKOV, Vladimir ,  IVONINE, Igor ,  TALAPOV, Andrei

IPC: G02B6/26

CPC classification number: G02B6/29328 ,  G02B6/12007 ,  G02B6/29394

Abstract: A method and device provide efficient wavelength division multiplexing/demultiplexing (WDM) including reduced signal distortion, higher wavelength selectivity, increased light efficiency, reduced cross-talk, and easier integration with other planar devices, and lower cost manufacturing. The method and device include a planar holographic multiplexer/demultiplexer (100) having a planar waveguide (135), the planar waveguide including a holographic element (128) that separates and combines pre-determined (pre-selected) light wavelengths. The holographic element includes a plurality of holograms (105) that reflect pre-determined light wavelengths from an incoming optical beam (121) to a plurality of different focal points, each pre-determined wavelength representing the center wavelength of a distinct channel. Advantageously, a plurality of superposed holograms may be formed by a plurality of structures, each hologram reflecting a distinct center wavelength to represent a distinct channel to provide discrete dispersion. When used as a demultiplexer, the holographic element spatially separates light of different wavelengths and when reversing the direction of light propagation, the holographic element may be used as a demultiplexer to focus several optical beams having different wavelengths into a single beam containing all of the different wavelengths.

Abstract translation: 一种方法和装置提供有效的波分复用/解复用（WDM），包括降低的信号失真，更高的波长选择性，增加的光效率，减少的串扰，并且更容易与其他平面装置的集成，以及降低成本制造。 该方法和装置包括具有平面波导（135）的平面全息复用器/解复用器（100），平面波导包括分离并组合预定（预先选择的）光波长的全息元件（128）。 全息元件包括多个全息图（105），其将来自入射光束（121）的预定光波长反射到多个不同焦点，每个预定波长表示不同通道的中心波长。 有利地，多个叠加的全息图可以由多个结构形成，每个全息图反射不同的中心波长以表示不同的通道以提供离散的色散。 当用作解复用器时，全息元件在空间上分离不同波长的光，并且当反转光传播的方向时，全息元件可以用作解复用器，以将具有不同波长的多个光束聚焦到包含所有不同波长的单个波束 波长。

公开(公告)号：WO2002029453A1

公开(公告)日：2002-04-11

申请号：PCT/US2001/027290

申请日：2001-08-31

Applicant: OPTERA INCORPORATED

Inventor： YANKOV, Vladimir ,  IVONINE, Igor

IPC: G02B5/32

CPC classification number: G02B6/29308 ,  G02B5/203 ,  G02B5/32 ,  G02B6/2938 ,  H04J14/02

Abstract: A holographic multiplexer/demultiplexer (20) for separating and combining pre-selected wavelengths. Included is a holographic element that contains a specifically written recording of multiple separate focal points (30,32), one for each of a plurality of different pre-selected wavelengths. The holographic multiplexer/demultiplexer separates the different wavelengths contained within a single beam of radiation (12), and focuses each wavelength to a separate pre-recorded focal point. The holographic multiplexer/demultiplexer also multiplexes multiple beams containing a single wavelength of radiation, into a single beam and focuses the single beam to a pre-recorded focal point. The holographic multiplexer/demultiplexer can also be used as a wavelength exchanger.

Abstract translation: 一种用于分离和组合预选波长的全息多路复用器/解复用器（20）。 包括的全息元件包含多个分离的焦点（30,32）的专门写入的记录，一个用于多个不同的预选波长中的每一个。 全息多路复用器/解复用器分离包含在单个辐射束（12）内的不同波长，并将每个波长聚焦到单独的预记录焦点。 全息多路复用器/解复用器还将包含单个波长的辐射的多个光束复用到单个波束中，并将单个波束聚焦到预先记录的焦点。 全息多路复用器/解复用器也可以用作波长交换器。