公开(公告)号：US08625999B2

公开(公告)日：2014-01-07

申请号：US13748777

申请日：2013-01-24

Applicant: Massachusetts Institute of Technology

Inventor： Bryan S. Robinson ,  Don M. Boroson ,  Scott A. Hamilton ,  Shelby J. Savage

IPC: H04B10/04

CPC classification number: H04B10/5563 ,  H04B10/5051 ,  H04B10/548

Abstract: Described are an FSK modulator and a method for large-alphabet FSK modulation. The FSK modulator and the method are based on filtering of a multi-tone optical source such as a mode-locked laser which provides a comb distribution of tones. A frequency-selective component selects for transmission a subset of the tones. In various embodiments the frequency-selective component is a Mach-Zehnder interferometer filter or a microring resonator filter. A second frequency-selective component selects a subset of the tones from the comb distribution provided by the first frequency-selective component. Still more frequency-selective components can be used according to the number of tones supplied by the multi-tone optical source to the FSK modulator. The optical signal exiting the last frequency-selective component includes only a single tone which corresponds to the symbol to be transmitted.

Abstract translation: 描述了FSK调制器和用于大字母FSK调制的方法。 FSK调制器和方法基于滤波多色调光源，例如提供色调的梳状分布的锁模激光器。 频率选择分量选择传输音调的子集。 在各种实施例中，频率选择部件是马赫 - 曾德干涉仪滤波器或微环谐振器滤波器。 第二频率选择分量从由第一频率选择分量提供的梳状分布中选择音调的子集。 根据由多音调光源向FSK调制器提供的音调数量，可以使用更多的频率选择性组件。 离开最后频率选择分量的光信号仅包括对应于待传输的符号的单个音调。

公开(公告)号：US20130148983A1

公开(公告)日：2013-06-13

申请号：US13748777

申请日：2013-01-24

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Bryan S. Robinson ,  Don M. Boroson ,  Scott A. Hamilton ,  Shelby J. Savage

IPC: H04B10/04

CPC classification number: H04B10/5563 ,  H04B10/5051 ,  H04B10/548

Abstract: Described are an FSK modulator and a method for large-alphabet FSK modulation. The FSK modulator and the method are based on filtering of a multi-tone optical source such as a mode-locked laser which provides a comb distribution of tones. A frequency-selective component selects for transmission a subset of the tones. In various embodiments the frequency-selective component is a Mach-Zehnder interferometer filter or a microring resonator filter. A second frequency-selective component selects a subset of the tones from the comb distribution provided by the first frequency-selective component. Still more frequency-selective components can be used according to the number of tones supplied by the multi-tone optical source to the FSK modulator. The optical signal exiting the last frequency-selective component includes only a single tone which corresponds to the symbol to be transmitted.

Abstract translation: 描述了FSK调制器和用于大字母FSK调制的方法。 FSK调制器和方法基于滤波多色调光源，例如提供色调的梳状分布的锁模激光器。 频率选择分量选择传输音调的子集。 在各种实施例中，频率选择部件是马赫 - 曾德干涉仪滤波器或微环谐振器滤波器。 第二频率选择分量从由第一频率选择分量提供的梳状分布中选择音调的子集。 根据由多音调光源向FSK调制器提供的音调数量，可以使用更多的频率选择性组件。 离开最后频率选择分量的光信号仅包括对应于待传输的符号的单个音调。