Title:
光機能素子および光機能装置
Document Type and Number:
Japanese Patent JP4485745
Kind Code:
B2
Abstract:
An optical function device capable of controlling an optical signal with another optical signal, wherein a modulated input light Iin of a wavelength lambda 1 is coupled with a bias light Ibias of a wavelength lambda 2, and the thus coupled input and bias lights are input to a first semiconductor optical amplifying element 48, so that the bias light Ibias is intensity-modulated in a phase reversed with respect to the input light Iin, while the input light Iin is cut by a first wavelength extracting element 56. A control light Ic of the wavelength lambda 1 is coupled with the intensity-modulated bias light Ibias of the wavelength lambda 2, and the thus coupled control and bias lights are input to a second optical amplifying element 50, so that the once reversed bias light Ibias of the wavelength lambda 2 is intensity-modulated with respect to the control light Ic of the wavelength lambda 1, and is extracted as an output light by a second wave extracting element 50. The optical function device functions as a three-terminal optical computing and amplifying device, a three-terminal optical switching device or an optical DEMUX device, which is capable of controlling an optical intensity by using one wavelength and which permits multi-stage connection.
Inventors:
Yoshinobu Maeda
Takahiro Ichikawa
Takahiro Ichikawa
Application Number:
JP2002584080A
Publication Date:
June 23, 2010
Filing Date:
April 01, 2002
Export Citation:
Assignee:
Japan Science and Technology Agency
Chunichi Electronics Co., Ltd.
Yoshinobu Maeda
Chunichi Electronics Co., Ltd.
Yoshinobu Maeda
International Classes:
G02F2/02; G02F1/35; G02F2/00; G02F1/017; H01S5/50
Domestic Patent References:
| JP9304801A |
Foreign References:
| US5264960 |
Attorney, Agent or Firm:
Haruyuki Ikeda