Top > Search of International Patents > OPTICAL SIGNAL AMPLIFYING THREE-TERMINAL DEVICE, OPTICAL SIGNAL TRANSFER METHOD USING SAME, OPTICAL SIGNAL RELAY DEVICE, AND OPTICAL SIGNAL STORAGE DEVICE

OPTICAL SIGNAL AMPLIFYING THREE-TERMINAL DEVICE, OPTICAL SIGNAL TRANSFER METHOD USING SAME, OPTICAL SIGNAL RELAY DEVICE, AND OPTICAL SIGNAL STORAGE DEVICE

Foreign code F110004935
File No. Y0345WO
Posted date Jul 25, 2011
Country Republic of Korea
Application number 20057007066
Gazette No. 20050083811
Gazette No. 100956054
Date of filing Sep 19, 2003
Gazette Date Aug 26, 2005
Gazette Date May 6, 2010
Priority data
  • P2002-308946 (Oct 23, 2002) JP
  • P2003-059382 (Mar 6, 2003) JP
  • P2003-287576 (Aug 6, 2003) JP
Title OPTICAL SIGNAL AMPLIFYING THREE-TERMINAL DEVICE, OPTICAL SIGNAL TRANSFER METHOD USING SAME, OPTICAL SIGNAL RELAY DEVICE, AND OPTICAL SIGNAL STORAGE DEVICE
Abstract

An optical signal amplifying three- terminal device (10) for directly amplifying an optical signal by using a control input light. A first input light L1 of a first wavelength lambda1 and a second input light L 2 of a second wavelength lambda2 are inputted into a first optical amplifying element (26). A light of the second wavelength lambda 2 and a third input light (control light) L3 of a third wavelength lambda3 outputted from the first optical amplifying element (26) are inputted into a second optical amplifying element (34). An output light L4 of the third wavelength lambda3 selected from the light outputted from the second optical amplifying element (34) is modulated with the intensity variation of the first input light L1 and/or the third input light L3.

Therefore, the output light L4 is an amplified signal amplified with a signal amplification factor of 2 or more with respect to the third input light (control light) L3. Thus, an optical signal is directly amplified by using a control input light.

  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • MAEDA YOSHINOBU
IPC(International Patent Classification)
Please contact us by E-mail or facsimile if you have any interests on this patent.

PAGE TOP

close
close
close
close
close
close