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Registered OPTICAL NETWORK SYSTEM USING WAVELENGTH CHANNELS INCLUDED IN O-BAND

EPON 수동형 광가입자망을 위한 파장 할당 방법
이미지 확대
Inventors
Lee Han Hyub, Sil Gu Mun, Chung Hwan Seok, Park Heuk
Application No.
15798807 (2017.10.31)
Publication No.
20180123723 (2018.05.03)
Registration No.
10476625 (2019.11.12)
Country
UNITED STATES
Project Code
16MH1100, SDN based Wired and wireless converged optical Access Networking, Chung Hwan Seok
Abstract
Wavelength channels used in the optical network system are classified into downstream channels used to transmit optical signals from an optical line terminal (OLT) to an optical network unit (ONU) and upstream channels that are used to transmit optical signals from the ONU to the OLT. The wavelength channels are included in an O-band and may not overlap each other. One of the upstream channels are allocated to a wavelength band (for example, a zero-dispersion window) in which a four-wave mixing occurs. A wavelength spacing between the upstream channels and the downstream channels is determined based on a performance of separating the upstream channels and the downstream channels in a bidirectional optical sub assembly (BOSA) of the ONU. Also, a wavelength spacing between the downstream channels is determined based on a performance of separating the downstream channels in the BOSA.
KSP Keywords
Four-Wave Mixing(Fwm), Network system, Optical line terminal(OLT), Optical network, Optical network unit(ONU), four-wave, wave mixing
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Status Patent Country KIPRIS
Registered OPTICAL NETWORK SYSTEM USING WAVELENGTH CHANNELS INCLUDED IN O-BAND KOREA KIPRIS