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Optical signal amplifying three-terminal device,optical signal transfer method using same, opticalsignal 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
International application number JP2003011961
International publication number WO2004038492
Date of international filing Sep 19, 2003
Date of international publication May 6, 2004
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, opticalsignal 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 L[1] of a first wavelength .lambda.[1] and a second input light L[ 2] of a second wavelength .lambda.[2] are inputted into a first optical amplifying element (26). A light of the second wavelength .lambda. [2] and a third input light (control light) L[3] of a third wavelength .lambda.[3] outputted from the first optical amplifying element (26) are inputted into a second optical amplifying element (34). An output light L[4] of the third wavelength .lambda.[3] selected from the light outputted from the second optical amplifying element (34) is modulated with the intensity variation of the first input light L[1] and/or the third input light L[3]. Therefore, the output light L[4] is an amplified signal amplified with a signal amplification factor of 2 or more with respect to the third input light (control light) L[3]. Thus, an optical signal is directly amplified by using a control input light.
(C) KIPO WIPO 2007
Scope of claims [claim1]
1. PN junction with the active layer each have an active layer for reflecting light passing through the reflecting means each comprising a end face, the light input from the cross section using the characteristics of a cross gain modulation signal amplification and converts the wavelength of the first semiconductor optical amplifier 1 for outputting the first and second semiconductor optical amplifying element element 2;
1 the first input of the first wavelength and light of a wavelength of 1 2 2 1 the first input light is input to the first semiconductor optical amplifying element A second optical input means 1;
1 the semiconductor optical amplifier from the first light having a wavelength of light from the device 2 selecting a wavelength selection element 1;
1 the wavelength selection element selected by the first and the second wavelength of light of a wavelength of 2 3 3 2 the first input light input to the first semiconductor optical amplifier light input means 2 to said first element; and
2 the semiconductor optical amplifier from the first wavelength light from the device 3 the output light of the wavelength selection element to select one and 2,
3 the output of the first wavelength light is 1 1 3 of the first and the second wavelength input light of a wavelength of 3 of at least one of the first input light modulated in response to a change in intensity and, in the third wavelength 3 3 for an input light signal of the first amplification rate is at least 2 of the terminal optical signal amplifying device 3.

[claim2]
2. Method according to claim 1,
Wherein the first input light is modulated light of a wavelength of 1 and 1, wherein the first input light is continuous light of a wavelength of 2 and 2, wherein the first input light is control light of a wavelength of 3 and 3, 3 of the output of said first wavelength the control light input period of the power light at a first input optical signal is amplified 1 modulation of the signal waveform is comprising, terminal optical signal amplifying device 3.

[claim3]
3. Method according to claim 1 or 2,
3 the second wavelength are in the same manner as the first wavelength is a wavelength of 1, 3 terminal optical signal amplifying device.

[claim4]
4. Method according to claim 1 or 2,
Wherein the first wavelength of light output from the first 3 3 for light control of the wavelength of at least 10 signal amplification rate, 3 terminal optical signal amplifying device.

[claim5]
5. Method according to claim 1 or 2,
1 the semiconductor optical amplifier element and said first semiconductor optical amplifying element 2 at least one active layer of quantum well, quantum dot superlattice or modified is composed, 3 terminal optical signal amplifying device.

[claim6]
6. AMEND STATUS: Delete

[claim7]
7. Method according to claim 1 or 2,
1 the semiconductor optical amplifier element and said first semiconductor optical amplifying element 2 provided at an end of the reflecting means may, optionally to reflect light, terminal optical signal amplifying device 3.

[claim8]
8. Method according to claim 1,
A reflective means 1 in the first semiconductor optical amplifier of the first wavelength of light from the device 1 1 the first input light is not reflected but the first wavelength of light is 2 2 wherein the first semiconductor optical amplifying element 1 towards the first wavelength selective mirror that reflects and, wherein the first light from the device 2 of the first semiconductor optical amplifier 2 in wavelength of light is not reflected but the first wavelength of light is 3 2 is a first wavelength selective mirror reflection, 3 terminal optical signal amplifying device.

[claim9]
9. AMEND STATUS: Delete

[claim10]
10. Method according to claim 1,
A reflective means 1 said first and said second wavelength selection element 2 at least one functions as a wavelength selection element, said reflective means and the angle of incidence with respect to input light to change at least one of the output light by the output angle, output light from the semiconductor optical amplifying element a predetermined other input into the semiconductor optical amplifier element which, terminal optical signal amplifying device 3.

[claim11]
11. Method according to claim 1 or 2,
1 the first and the second semiconductor optical amplifying element 2 formed on the semiconductor optical amplifier device includes a semiconductor substrate in the optical waveguide are disposed in plural set formed and, as a chip set of a plurality of them 1 being integrated into a single, 3 terminal optical signal amplifying device.

[claim12]
12. Method according to claim 1 or 2,
1 the first or the second semiconductor optical amplifying element end surface of the semiconductor optical amplifying element 2 through 1 wherein the first or the second semiconductor optical amplifying element 2 and input into the semiconductor optical amplifying element and the light input, through its end surface 1 of the first or the second semiconductor optical amplifying element 2 in the semiconductor optical amplifying element the light output optical path different from an input optical guiding element is formed and the Guangxi or a directional coupler being, terminal optical signal amplifying device 3.

[claim13]
13. Method according to claim 1 or 2,
1 the wavelength selection element or the second wavelength selection element 2 which functions as a wavelength selective mirror or wavelength selective filter installed in the optical path, light propagation direction to periodically change the refractive index in the grating filter, multiple sets of layers having a different refractive index are laminated in a multilayer film filter, a photonic crystal having a photonic band gap is made of any one of a, terminal optical signal amplifying device 3.

[claim14]
14. Method according to claim 1 or 2,
Wherein the optical signal amplifying triode makes NAND 3 gate, the gate light NOR, light flip flop circuit, or an operational amplifier and a second optical configuration, 3 terminal optical signal amplifying device.

[claim15]
15. Method according to claim 2,
2 the wavelength selection element 2 of said first light output from the semiconductor optical amplifying element of the control light 3 corresponding to a wavelength of the output light of a first selected wavelength and at the same time, the wavelength of light output from the first wavelength 3 in the plurality of optical transmission line is distributed to the light distribution device, optical signal amplification device 3 terminal.

[claim16]-[claim34]
16.-34. AMEND STATUS: Delete

[claim35]
35. Method according to claim 7,
A reflective means 1 in the first semiconductor optical amplifier of the first wavelength of light from the device 1 1 the first input light is not reflected but the first wavelength of light is 2 2 wherein the first semiconductor optical amplifying element 1 towards the first wavelength selective mirror that reflects and, wherein the first light from the device 2 of the first semiconductor optical amplifier 2 in wavelength of light is not reflected but the first wavelength of light is 3 2 is a first wavelength selective mirror reflection, 3 terminal optical signal amplifying device.

[claim36]
36. AMEND STATUS: Delete

[claim37]
37. Method according to claim 7,
A reflective means 1 said first and said second wavelength selection element 2 at least one functions as a wavelength selection element, said reflective means and the angle of incidence with respect to input light to change at least one of the output light by the output angle, output light from the semiconductor optical amplifying element a predetermined other input into the semiconductor optical amplifier element which, terminal optical signal amplifying device 3.
  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • MAEDA YOSHINOBU
IPC(International Patent Classification)
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