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Title:
OPTICAL COMMUNICATION MODULE AND OPTICAL COMMUNICATION DEVICE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2016/194091
Kind Code:
A1
Abstract:
The objective of the present invention is to provide an optical communication module and an optical communication device with which an increase in the rate of communication can be achieved reliably and at low cost. This optical communication module employs a laser diode and a photodiode, and is characterized in being provided with a pre-amplifier which accepts a single-phase current signal, which is the output from the photodiode, as an input, and converts and amplifies the single-phase current signal to obtain a single-phase voltage signal, and a laser characteristic compensation circuit which accepts the voltage signal output by the pre-amplifier as an input, and in that the laser characteristic compensation circuit compensates, on the receiving side, for nonlinearities arising from the frequency characteristics and the relaxation oscillation frequency of the laser diode used on the transmitting side.

Inventors:
TAKEMOTO TAKASHI (JP)
YAMASHITA HIROKI (JP)
Application Number:
PCT/JP2015/065690
Publication Date:
December 08, 2016
Filing Date:
May 29, 2015
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
H01S5/0683
Foreign References:
JP2007329862A2007-12-20
JPS6328088A1988-02-05
JP2010113084A2010-05-20
JP2010097988A2010-04-30
JP2005020459A2005-01-20
JP2013179698A2013-09-09
JP2011160257A2011-08-18
JP2009260715A2009-11-05
JPH06350538A1994-12-22
JP2009153047A2009-07-09
US20080112706A12008-05-15
Attorney, Agent or Firm:
SEIRYO I. P. C. (JP)
青稜 patent business corporation (JP)
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