Photoelectric mixed phase-locked loop based on electric absorption regulator
Title：
Photoelectric mixed phase-locked loop based on electric absorption regulator
Application Number：
 200410009468
Application Date：
 2004/08/20
Announcement Date：
 2005/03/23
Pub. Date：
 2006/08/16
Publication Number：
 1599251
Announcement Number：
 1270442
Grant Date：
 2006-8-16
Granted Pub. Date：
 2006-8-16
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H03L 7/08
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Quan Shuang, Zhang Hongming, Yao Minyu
Key Words：
 Photoelectric mixed, phase-locked loop, electric absorption regulator
Abstract：
 A photoelectric mixed phase lock loop based on the electroabsorption modulator. It has the phase discriminator with the light signal as its input signal, which is made in the means of that the electroabsorption modulator connects with the low speed photo detector in series, the control circuit which is composed of the amplifying circuit and the bias circuit, and the voltage controlled oscillator, whose input terminal connects with the output terminal of the bias circuit and whose radio frequency output terminal connects with the feedback signal input terminal of the electroabsorption modulator. The input terminal of the abovementioned amplifying circuit connects with the phase error signal output terminal of the low speed photo detector. It has simple structure and can realize the locking of the input light signal by adjusting the central frequency of the voltage controlled oscillator.
Claim：
Priority：
PCT：
LegalStatus：

Recommend this patent:
1 2 3 4 5
Average ( 0 votes):
                                                                          Recommended Patents>>

Relevancy information



Other Patents of Same Inventor

Method and system for controlling adaptive optic fiber squeezed electrocontrolled polarization controller
Optical A/D converter based on asymmetric Mach-Zehnder modulator



News & Events More>>

Last Update  
2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







Copyright 2008-2015 All Rights Reserved Patent License of China.      Designed by Easygo