公开(公告)号：US20150110494A1

公开(公告)日：2015-04-23

申请号：US14376422

申请日：2012-02-07

申请人： Paolo Ghelfi ,  Filippo Scotti ,  Francesco Laghezza ,  Antonella Bogoni

发明人： Paolo Ghelfi ,  Filippo Scotti ,  Francesco Laghezza ,  Antonella Bogoni

IPC分类号： H04B10/2575

CPC分类号： H04B10/2575 ,  H04B10/00 ,  H04B2210/006

摘要： An RF signal generator has an optical part for outputting optical carrier signals separated in optical frequency, and a modulator arranged to modulate the optical carrier signals with an intermediate frequency to generate sidebands. A phase modulation is applied to one or more of the sidebands or the optical carriers, without applying the phase modulation to others of the signals, and the modulator has integrated optical paths for both the phase modulated signals and for the others of the signals. A detector part carries out heterodyne detection to combine the phase modulated and other signals to output an RF signal having the phase modulation. By having integrated optical paths, the relative phase of these optical paths can be more stable than using a fiber sagnac interferometer and optical isolator thus enabling use in advanced radio communications.

摘要翻译： RF信号发生器具有用于输出以光频率分离的光载波信号的光学部件，以及调制器，用于调制具有中频的光载波信号以产生边带。 相位调制被应用于一个或多个边带或光载波，而不对其他信号施加相位调制，并且调制器具有针对相位调制信号和其他信号的集成光路。 检测器部分执行外差检测以组合相位调制信号和其它信号以输出具有相位调制的RF信号。 通过具有集成的光路，这些光路的相对相位可以比使用光纤信号干涉仪和光隔离器更稳定，从而能够用于高级无线电通信。