Title:
波長制御装置及び制御方法
Document Type and Number:
Japanese Patent JP5459067
Kind Code:
B2
Abstract:
The wavelength control device comprises a first Mach-Zehnder filter which receives a first optical signal and outputs an optical signal having a predetermined wavelength, a second Mach-Zehnder filter which receives a second optical signal and outputs an optical signal having a predetermined wavelength, a heating unit heating respective parts of either one of the waveguides of the first and second Mach-Zehnder filters, a first wavelength detecting unit which receives an optical signal from the first Mach-Zehnder filter and detects a wavelength thereof, a second wavelength detecting unit which receives an optical signal from the second Mach-Zehnder filter and detects a wavelength thereof, a power control unit which controls power supplied to the heating unit based on the wavelength received from the first wavelength detecting unit, and an output unit which outputs a wavelength value based on the wavelength received from the second wavelength detecting unit.
Inventors:
Oku Norika
Application Number:
JP2010118152A
Publication Date:
April 02, 2014
Filing Date:
May 24, 2010
Export Citation:
Assignee:
NEC
International Classes:
H01S5/0687; G01J9/00
Domestic Patent References:
| JP2307027A | ||||
| JP2009060309A | ||||
| JP10178394A | ||||
| JP6152529A | ||||
| JP2006072354A | ||||
| JP9261181A | ||||
| JP2001339366A | ||||
| JP2010080665A | ||||
| JP7055579A |
Attorney, Agent or Firm:
Kimura Mitsuru