All optical asynchronous binary delta-sigma modulator

被引：8

作者：

Tafazoli, M. ^{[1
]}

Davoudzadeh, N. ^{[1
]}

Sayeh, M. R. ^{[1
]}

机构：

[1] So Illinois Univ, Dept Elect & Comp Engn, Carbondale, IL 62901 USA

来源：

OPTICS COMMUNICATIONS | 2013年 / 291卷

关键词：

Binary delta-sigma modulator; Asynchronous delta-sigma modulator; Optical delta-sigma modulator; Optical A/D converter; Oversampling; TO-DIGITAL CONVERTERS;

D O I：

10.1016/j.optcom.2012.11.022

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the first all optical delta-sigma modulator using a bistable device and a leaky integrator. In this paper, a novel tri-coupled ring geometry is utilized, resulting in resonance which is a building block for delta-sigma modulator. In each ring, the main active element is a semiconductor optical amplifier (SOA). The experimental result of the implemented setup is in a good agreement with our presented theory. Applying optical discrete components leads to a sampling rate of 660 kS/s. The higher frequency can be reached easily by using faster bistable devices and shorter loops. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：228 / 231

页数：4