公开(公告)号：US09231698B2

公开(公告)日：2016-01-05

申请号：US14189582

申请日：2014-02-25

Applicant: Google Inc.

Inventor： Baris Ibrahim Erkmen ,  Nam-hyong Kim ,  Edward Allen Keyes ,  Kyle Brookes

IPC: H04B10/00 ,  H04B10/112

CPC classification number: H04B10/1129 ,  H04B10/1125 ,  H04B10/118

Abstract: An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The optical components are arranged such that adjusting an orientation of the steering mirror aligns the terminal to communication over a given free space optical link using either the first or second complementary pair.

Abstract translation: 光通信终端被配置为以全双工通信的两种不同的互补模式操作。 在一种模式中，终端透射具有第一波长的光并且沿着公共自由空间光路接收具有第二波长的光。 在另一模式中，终端发送具有第二波长的光并接收具有第一波长的光。 该终端包括导光镜，其将来自二色性元件的光引导至根据波长产生不同光路的二向色元件，并且还包括用于两个波长的空间分离的发射器和检测器。 在一个模式中使用第一个互补的发射器/检测器对，并且在另一个模式中使用第二对。 光学部件被布置成使得调整导向镜的方位将终端与使用第一或第二互补对的给定自由空间光链路进行通信对准。

公开(公告)号：US20150244458A1

公开(公告)日：2015-08-27

申请号：US14189582

申请日：2014-02-25

Applicant: Google Inc.

Inventor： Baris Ibrahim Erkmen ,  Nam-hyong Kim ,  Edward Allen Keyes ,  Kyle Brookes

IPC: H04B10/112

CPC classification number: H04B10/1129 ,  H04B10/1125 ,  H04B10/118

Abstract: An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The optical components are arranged such that adjusting an orientation of the steering mirror aligns the terminal to communication over a given free space optical link using either the first or second complementary pair.

Abstract translation: 光通信终端被配置为以全双工通信的两种不同的互补模式操作。 在一种模式中，终端透射具有第一波长的光并且沿着公共自由空间光路接收具有第二波长的光。 在另一模式中，终端发送具有第二波长的光并接收具有第一波长的光。 该终端包括导光镜，其将来自二色性元件的光引导至根据波长产生不同光路的二向色元件，并且还包括用于两个波长的空间分离的发射器和检测器。 在一个模式中使用第一个互补的发射器/检测器对，并且在另一个模式中使用第二对。 光学部件被布置成使得调整导向镜的方位将终端与使用第一或第二互补对的给定自由空间光链路进行通信对准。