Title:
Optical communication device
Document Type and Number:
Japanese Patent JP6156496
Kind Code:
B2
Abstract:
An optical reception apparatus (1) of the present invention includes: a local oscillator (11) outputting local oscillation light (22); an optical mixer (12) receiving a multiplexed optical signal (21) and the local oscillation light, and selectively outputting an optical signal (23) corresponding to the wavelength of the local oscillation light from the multiplexed optical signal; a photoelectric converter (13) converting the optical signal (23) output from the optical mixer into an electric signal (24); a variable gain amplifier (15) amplifying the electric signal (24) to generate an output signal (25) whose output amplitude is amplified to a certain level; a gain control signal generating circuit (16) generating a gain control signal (26) for controlling the gain of the variable gain amplifier (15); and a monitor signal generating unit (17) generating a monitor signal (27) corresponding to the power of the optical signal (23) using the gain control signal (26).
Inventors:
Yusuke Yamauchi
Application Number:
JP2015526135A
Publication Date:
July 05, 2017
Filing Date:
March 27, 2014
Export Citation:
Assignee:
NEC
International Classes:
H04B10/079; G02F2/00; H04B10/61
Domestic Patent References:
| JP3140026A |
Foreign References:
| WO2012140922A1 | ||||
| EP2566072A1 | ||||
| WO2013088694A1 |
Attorney, Agent or Firm:
Ken Ieiri
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