Title:
Optical transmitter / receiver module
Document Type and Number:
Japanese Patent JP6337960
Kind Code:
B2
Abstract:
A tunable laser source includes a mirror, a tunable filter, and a semiconductor optical amplifier integrated device including first, second, and third semiconductor optical amplifiers between a first end face facing toward the tunable filter and a second end face facing away from the first end face. The first amplifier is closer to the first end face than the second and third amplifiers. The semiconductor optical amplifier integrated device further includes a partially reflecting mirror and an optical divider that are disposed between the first amplifier and the second and third amplifiers. The partially reflecting mirror is closer to the first amplifier than the optical divider. The optical divider includes first and second branches connected to the second and third semiconductor optical amplifiers, respectively. The tunable filter and the first amplifier are disposed in an optical path between the partially reflecting mirror and the mirror that form a laser resonator.
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Inventors:
Kazumasa Takabayashi
Takeyuki Yamamoto
Takeyuki Yamamoto
Application Number:
JP2016514566A
Publication Date:
June 06, 2018
Filing Date:
April 21, 2014
Export Citation:
Assignee:
富士通株式会社
International Classes:
G02F1/01; H01S5/14; G02F2/00; H01S5/026
Domestic Patent References:
| JP2009043840A | ||||
| JP2011086714A | ||||
| JP2012175583A | ||||
| JP2007064860A | ||||
| JP2018526A | ||||
| JP2012053399A | ||||
| JP2010177221A | ||||
| JP2007256716A | ||||
| JP62285466A |
Foreign References:
| US5440576 | ||||
| US5539571 | ||||
| CN102354909A | ||||
| WO2007080891A1 | ||||
| WO2007029647A1 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Takao Kato
Tadahiko Ito
Takao Kato