Future Wei Technologies, Inc.

Huawei Technologies Co., Limited

Shuchang Yao

Frank J Effenberger

Xiang Liu

Lei Zhou

Huaiyu Zeng

Lin Huang

Xianbo Dai

Shengming Ma

Minghui Tao

Frank Effenberger

A transceiver comprises: a sampling phase optimization stage comprising: a first interpolator; a first equalizer coupled to the first interpolator; a first optimizer coupled to the first equalizer; and an output; and an equalization stage coupled to the output and comprising: a buffer; a second interpolator coupled to the buffer; and a second equalizer coupled to the second interpolator. A method comprising: receiving an optical burst signal; determining an optimum sampling phase based on a portion of a digital signal representing the optical burst signal; and equalizing all of the digital signal using the optimum sampling phase.

Channel recovery in burst-mode, time-division multiplexing (TDM) passive optical networks (PONs)

An apparatus comprises: a CDR sub-system comprising: an FFE; a decision component coupled to the FFE; a subtractor coupled to the FFE and the decision component; and a tap weight updater coupled to the subtractor and the FFE; and a PR-MLSE component coupled to the CDR sub-system. A method comprises: converting an optical signal with a first modulation format to an analog electrical signal; converting the analog electrical signal to a first digital signal; equalizing the first digital signal into a second digital signal with a second modulation format, wherein the second modulation format has more levels than the first modulation format; and performing CDR on the second digital signal.

Higher-level clock and data recovery (CDR) in passive optical networks (PONs)

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Wuhan, China

Shuchang Yao