REAL-TIME PHASE DEMODULATOR FOR OPTICAL HETERODYNE-DETECTION PROCESSES

被引：11

作者：

OKA, K

TSUKADA, M

OHTSUKA, Y

机构：

[1] Dept. of Eng. Sci., Hokkaido Univ.

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1991年 / 2卷 / 02期

关键词：

D O I：

10.1088/0957-0233/2/2/003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A real-time, wideband phase demodulator from which phase fluctuations extending over 2-pi radians can be taken out is designed for use in optical heterodyne detection processes. A phase-locked-loop (PLL) frequency multiplier, aided by compensation circuits to produce an unwrapped phase output, plays a major role in demodulating, in real time, the rapidly fluctuating phase from a generated beat photocurrent. The fabricated demodulator operates in the range 0 to 32-pi radians, with a minimum detectable phase (MDP) of 2-pi/128.

引用

页码：106 / 110

页数：5