Title:
光変調器及びその変調方法
Document Type and Number:
Japanese Patent JP5205033
Kind Code:
B2
Abstract:
An optical modulator comprises an electrode 21 which applies to an optical waveguides 12 of a Mach-Zehnder type optical interference system a first electric signal based on an alternating current signal S1 and a direct current bias V1, an electrode 22 which applies to an optical waveguide 13 of the Mach-Zehnder type optical interference system a second electric signal based on an alternating current signal S2 and a direct current bias V2, and a bias setting section 41 which sets average direct current levels of the first and second electric signals based on signal frequency information D1 which indicates a magnitude relation between a maximum frequency of the alternating current signal S1 and a maximum frequency of the alternating current signal S2.
Inventors:
Shinbo Tsutomu
Koichi Masuda
Yu Fuse
Fumio Fujisaki
Kuniharu Itakura
Tomoaki Ohira
Koichi Masuda
Yu Fuse
Fumio Fujisaki
Kuniharu Itakura
Tomoaki Ohira
Application Number:
JP2007285374A
Publication Date:
June 05, 2013
Filing Date:
November 01, 2007
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G02F1/03
Domestic Patent References:
| JP2002328347A | ||||
| JP2003258733A | ||||
| JP2002214573A | ||||
| JP2008158133A | ||||
| JP2007133176A |
Foreign References:
| US7116460 |
Attorney, Agent or Firm:
Patent business corporation Ogasawara patent office