Title:
OPTICAL MODULATOR
Document Type and Number:
WIPO Patent Application WO/2017/159782
Kind Code:
A1
Abstract:
The present invention provides an optical modulator whereby a phenomenon of resonance with an electrode in the vicinity of a signal electrode is suppressed, and various elements can be integrated at high density. This MZ-type optical modulator is characterized by being provided with: an input optical waveguide; two arm waveguides for branching and guiding light inputted from the input optical waveguide; an output optical waveguide for multiplexing and outputting the light guided through each of the two arm waveguides; two signal electrodes for applying a high-frequency signal, the signal electrodes being disposed in parallel with the two arm waveguides; an Si optical modulator including a DC electrode for applying a bias voltage, the DC electrode being provided between the two signal electrodes; and at least one ground electrode disposed in parallel with the two signal electrodes.
Inventors:
KAWAMURA YURIKO (JP)
TSUZUKI KEN (JP)
KIKUCHI KIYOFUMI (JP)
TSUZUKI KEN (JP)
KIKUCHI KIYOFUMI (JP)
Application Number:
PCT/JP2017/010652
Publication Date:
September 21, 2017
Filing Date:
March 16, 2017
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02F1/025
Domestic Patent References:
| WO2013062096A1 | 2013-05-02 |
Foreign References:
| JP2012027199A | 2012-02-09 | |||
| JP2016031377A | 2016-03-07 | |||
| JP2010152306A | 2010-07-08 | |||
| JP2012078496A | 2012-04-19 | |||
| JP2003243777A | 2003-08-29 | |||
| US20160054639A1 | 2016-02-25 | |||
| US20140248019A1 | 2014-09-04 |
Other References:
DONG, P. ET AL.: "High-speed low- voltage single-drive push-pull silicon Mach- Zehnder modulators", OPTICS EXPRESS, vol. 20, no. 6, 12 March 2012 (2012-03-12), pages 6163 - 6169, XP055420452
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
Download PDF:
Previous Patent: TAG MANAGEMENT DEVICE, TAG MANAGEMENT METHOD, AND PROGRAM
Next Patent: METHOD FOR MANUFACTURING PANEL-SHAPED MOLDED ARTICLE
Next Patent: METHOD FOR MANUFACTURING PANEL-SHAPED MOLDED ARTICLE