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Title:
SEMICONDUCTOR LASER DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/222094
Kind Code:
A1
Abstract:
In a process of producing a semiconductor laser requiring a very narrow wavelength selection in a TWDM-PON network such as NG-PON2 requiring a burst mode operation, the present invention forms two laser waveguides respectively having different oscillation wavelengths in one laser diode chip so as to improve a wavelength throughput of the chip, and when any one laser waveguide participates in communication, a current flowing in a waveguide laser, which does not participate in the communication, is modulated and introduced, with respect to a wavelength change caused by a change in a current which flows in a burst mode operating waveguide laser participating in the communication, so as to stabilize a wavelength of a laser beam oscillated in the laser waveguide participating in the communication, thereby enabling a DWDM-level burst mode communication.

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Inventors:
KIM JEONG-SOO (KR)
Application Number:
PCT/KR2016/006766
Publication Date:
December 28, 2017
Filing Date:
June 24, 2016
Export Citation:
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Assignee:
PHOVEL CO LTD (KR)
International Classes:
H01S3/063; H01S5/12
Foreign References:
JP2014007435A2014-01-16
KR20080016880A2008-02-22
JP2014056264A2014-03-27
US20140079082A12014-03-20
US20060056479A12006-03-16
Other References:
WOLFGANG POEHLMANN, J. OF OPTICAL COMMUNICATIONS AND NETWORKING, vol. 7, no. 1, 2015, pages 44
Attorney, Agent or Firm:
JEON, Soo-Jin (KR)
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