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Title:
BAND-MULTIPLEXED PASSIVE OPTICAL NETWORKS (PONS)
Document Type and Number:
WIPO Patent Application WO/2019/210791
Kind Code:
A1
Abstract:
An apparatus comprises a DAC configured to convert a digital electrical signal to an analog electrical signal and a laser coupled to the DAC. The laser is configured to generate an optical signal using the analog electrical signal for modulation, the optical signal is a band-multiplexed optical signal comprising frequency bands, the frequency bands comprise a lowest-frequency band, and the lowest-frequency band comprises a baseband IM signal. The laser is configured to transmit the optical signal. A PON comprises an OLT configured to transmit a downstream optical signal, the downstream optical signal is a band-multiplexed optical signal comprising a first band and a second band. The PON includes a first ONU configured to receive the downstream optical signal and equalize only the first band; and a second ONU configured to receive the downstream optical signal and equalize the first band and the second band.

Inventors:
LIU, Xiang (6 Manor Drive, Marlboro, New Jersey, 07746, US)
ZENG, Huaiyu (568 West Front Street, Red Bank, New Jersey, 07701, US)
SHEN, Andy (445 Boulder Drive, Morganville, New Jersey, 07751, US)
EFFENBERGER, Frank (10486 Railswood Drive, Frisco, Texas, 75035, US)
Application Number:
CN2019/083873
Publication Date:
November 07, 2019
Filing Date:
April 23, 2019
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H04L27/26
Domestic Patent References:
WO2017027042A12017-02-16
WO2017078173A12017-05-11
Foreign References:
CN102611668A2012-07-25
CN102833206A2012-12-19
US20120321320A12012-12-20
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