Title:
光送信器
Document Type and Number:
Japanese Patent JP6770478
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the inflow of heat from a driver IC to a semiconductor Mach-Zehnder modulator constituting an optical transmitter, without impairing a high frequency property.SOLUTION: An optical transmitter includes: a Mach-Zehnder modulator 101; a driver IC 102; and a wiring board 103 for connecting the Mach-Zehnder modulator 101 and the driver IC 102 by flip-chip mounting. The Mach-Zehnder modulator 101 is constituted of an optical waveguide comprising a semiconductor. Also the Mach-Zehnder modulator 101 has a ground electrode track and a ground electrode so as to employ a differential drive type. The driver IC 102 employs an open collector type or an open drain type output method, and drives the Mach-Zehnder modulator 101.SELECTED DRAWING: Figure 1
Inventors:
Josuke Ozaki
Kanazawa
Yoshihiro Ogiso
Kanazawa
Yoshihiro Ogiso
Application Number:
JP2017089549A
Publication Date:
October 14, 2020
Filing Date:
April 28, 2017
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G02F1/015; G02F1/017; G02F1/025
Domestic Patent References:
| JP2016537691A | ||||
| JP2016194598A | ||||
| JP2014112219A | ||||
| JP2005128440A |
Foreign References:
| US20150180580 | ||||
| WO2011004615A1 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Yuzo Koike
Masaki Yamakawa
Yuzo Koike
Masaki Yamakawa