Optical N-level quadrature amplitude modulation (NQAM) tuned by dithering associated heaters

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United States of America Patent

PATENT NO 9835928
SERIAL NO

15430714

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Abstract

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A technique for tuning a silicon photonics (SiP) based nested (parent/child) Mach-Zehnder modulator (MZM). The technique includes a sequence of applying dither tones on individual arms of the child MZMs, observing changes in the output of the MZM, and adjusting the MZM until reaching the null points for the child MZMs and the quad point for the parent MZM.

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Patent Owner(s)

Patent OwnerAddress
FUTUREWEI TECHNOLOGIES INC15851 DALLAS PARKWAY SUITE 650 ADDISON TX 75001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shan, Na Wuhan, CN 2 5
Shen, Jinxi San Ramon, US 20 213
Shi, Zhong Dublin, US 39 2155

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