Title:
電界吸収型光変調器付き半導体レーザ及びその駆動回路並びに半導体レーザ装置
Document Type and Number:
Japanese Patent JP3591447
Kind Code:
B2
Abstract:
In a conventional type method of suppressing the frequency chirp of signal light and a conventional type semiconductor laser using the method, high voltage is required to suppress the chirp and the speed of a response is not enough. The frequency chirp of signal light is also effectively reduced in high-speed modulation by adding another electroabsorption-type optical modulator for suppressing chirp to a semiconductor laser integrated with an electroabsorption-type optical modulator for modulating a signal.
Inventors:
Hirohito Tanaka
Application Number:
JP2000321102A
Publication Date:
November 17, 2004
Filing Date:
October 20, 2000
Export Citation:
Assignee:
NEC
International Classes:
G02F1/025; H01S5/026; H01S5/00; H01S5/06; H01S5/0625; (IPC1-7): G02F1/025; H01S5/026
Domestic Patent References:
| JP7193541A | ||||
| JP2000284241A | ||||
| JP7193308A |
Attorney, Agent or Firm:
Masahiko Desk
Yasuhisa Tanizawa
Kawai Nobuaki
Yasuhisa Tanizawa
Kawai Nobuaki