公开(公告)号：WO0110069A9

公开(公告)日：2001-09-20

申请号：PCT/US0020489

申请日：2000-07-27

Applicant: APA OPTICS INC

Inventor： BOORD WARREN TIMOTHY ,  JAIN ANIL K ,  VANDERWERT TERRY

IPC: G02B6/34 ,  G02B6/293

CPC classification number: G02B6/272 ,  G02B6/2793 ,  G02B6/29302 ,  G02B6/2931 ,  G02B6/2938

Abstract: An optical multiplexer/demultiplexer for fiber optical communication is disclosed. The device includes a collimator (21), configured to collimate a beam of wavelength-division-multiplexed signal received from a fiber (20); a splitter (23) for dividing the beam into two parallel beams which are polarized 90 DEG from each other; a retarder, such as a half-wave plate, for rotating the polarization direction of one of the beam by 90 DEG so that both beams are polarized in the same direction; a beam steerer, such as a prism (25), for modifying the diameter in the direction parallel to the polarization direction and for modifying the propagation direction; a wavelength dispersing element, such as a diffraction grating (27), for separating each of beams into a plurality of beams, each having a different center wavelength and propagating along a different angular direction. The optical elements in the multiplexer/demultiplexer are arranged in such a way to direct the diffracted beams through the optical elements, in reverse order, resulting in a plurality of beams, which may be launched into optical fibers (33). The parameters of the optical elements may be chosen to be suitable for multimode dense WDM applications using single-mode transmission fiber.

Abstract translation: 公开了一种用于光纤通信的光复用器/解复用器。 该装置包括：准直器（21），被配置为准直从光纤（20）接收的波分复用信号的波束; 分离器（23），用于将光束分成两个彼此偏振90度的平行光束; 诸如半波片的延迟器，用于将一个光束的偏振方向旋转90度，使得两个光束在相同方向上被偏振; 用于改变与偏振方向平行的方向上的直径并用于修改传播方向的诸如棱镜（25）的光束转向器; 诸如衍射光栅（27）的波长分散元件，用于将每个光束分成多个光束，每个光束具有不同的中心波长并沿着不同的角度方向传播。 复用器/解复用器中的光学元件被布置成以相反的顺序引导衍射光束通过光学元件，导致可以发射到光纤（33）中的多个光束。 可以选择光学元件的参数以适合于使用单模传输光纤的多模密集WDM应用。

公开(公告)号：WO0110069A3

公开(公告)日：2001-08-23

申请号：PCT/US0020489

申请日：2000-07-27

Applicant: APA OPTICS INC

Inventor： BOORD WARREN TIMOTHY ,  JAIN ANIL K ,  VANDERWERT TERRY

IPC: G02B6/34

CPC classification number: G02B6/272 ,  G02B6/2793 ,  G02B6/29302 ,  G02B6/2931 ,  G02B6/2938

Abstract: An optical multiplexer/demultiplexer for fiber optical communication is disclosed. The device includes a collimator (21), configured to collimate a beam of wavelength-division-multiplexed signal received from a fiber (20); a splitter (23) for dividing the beam into two parallel beams which are polarized 90° from each other; a retarder, such as a half-wave plate, for rotating the polarization direction of one of the beam by 90° so that both beams are polarized in the same direction; a beam steerer, such as a prism (25), for modifying the diameter in the direction parallel to the polarization direction and for modifying the propagation direction; a wavelength dispersing element, such as a diffraction grating (27), for separating each of beams into a plurality of beams, each having a different center wavelength and propagating along a different angular direction. The optical elements in the multiplexer/demultiplexer are arranged in such a way to direct the diffracted beams through the optical elements, in reverse order, resulting in a plurality of beams, which may be launched into optical fibers (33). The parameters of the optical elements may be chosen to be suitable for multimode dense WDM applications using single-mode transmission fiber.

Abstract translation: 公开了一种用于光纤通信的光复用器/解复用器。 该装置包括准直器，被配置为准直从光纤接收的波分复用光信号的波束; 用于将来自准直器的准直光束分成两个彼此偏振90°的平行传播光束的分光器; 诸如半波片的延迟器，用于将一个光束的偏振方向旋转90度，使得两个光束在相同方向上极化; 用于改变分束和旋转光束在与偏振方向平行的方向上的直径并用于修改光束的传播方向的光束转向器，例如棱镜; 波长分散元件，例如衍射光栅，用于将分离的，旋转的和转向的光束分成多个光束，每个光束具有不同的中心波长并且沿相对于预定方向的不同的角度方向传播。 复用器/解复用器中的光学元件被布置成以相反的顺序引导衍射光束通过除了波长分散元件本身之外的光学元件，导致可以启动的多个不同中心波长的光束 成为相应的多根光纤。 可以选择光学元件的参数适合于多模密集波长多路复用/解复用应用。 该器件还适用于从单模光纤中解复用信号。

公开(公告)号：AU1326401A

公开(公告)日：2001-02-19

申请号：AU1326401

申请日：2000-07-27

Applicant: APA OPTICS INC

Inventor： BOORD WARREN TIMOTHY ,  JAIN ANIL K ,  VANDERWERT TERRY

IPC: G02B6/34 ,  H04J14/00