Title:
TWO-TONE SIGNAL GENERATOR AND OPTICAL RADIO INTEGRATION SYSTEM
Document Type and Number:
Japanese Patent JP2017203900
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To generate a two-tone signal having smaller frequency intervals with respect to frequency of an optical signal with a simple configuration.SOLUTION: A two-tone signal generator for generating an optical two-tone signal using laser beams, comprises a first TTG 23 for generating an optical two-tone signal having first frequency intervals using laser beams, an LPF 24 for removing an upper-side band wave from the optical two-tone signal generated by the first TTG 23, a second TTG 25 for generating an optical two-tone signal having second frequency intervals different from the first frequency intervals using an optical signal outputted from the LPF 24, and an HPF 27 for removing a lower-side band wave from the optical two-tone signal generated by the second TTG 25. The two-tone signal generator outputs the optical two-tone signal composed of the laser beams and the optical signal outputted from the HPF 27.SELECTED DRAWING: Figure 2
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Inventors:
KOBAYASHI TAKASHI
NISHIMURA KOSUKE
BEKKALI ABDELMOULA
NISHIMURA KOSUKE
BEKKALI ABDELMOULA
Application Number:
JP2016096109A
Publication Date:
November 16, 2017
Filing Date:
May 12, 2016
Export Citation:
Assignee:
KDDI CORP
International Classes:
G02F2/02; H04B10/80
Domestic Patent References:
| JP2007215165A | 2007-08-23 | |||
| JP2007163963A | 2007-06-28 | |||
| JP2009294263A | 2009-12-17 | |||
| JP2006267201A | 2006-10-05 | |||
| JP2016025395A | 2016-02-08 | |||
| JPH1020352A | 1998-01-23 | |||
| JP2005353769A | 2005-12-22 |
Foreign References:
| US20050286908A1 | 2005-12-29 |
Attorney, Agent or Firm:
Takeo Fukuchi
Yoichi Shirakawa
Yoichi Shirakawa
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