Inventor
ZHAO XIANGJUN
US26 patents
⚠️ This page may combine multiple inventors who share the name “ZHAO XIANGJUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GOOGLE INC
14 patentsUS10103513B1Oct 16, 2018
Common cathode laser driving circuit
GOOGLE INC36 citations93
US9749080B2Aug 29, 2017
TWDM passive network with extended reach and capacity
GOOGLE INC10 citations83
US9608758B1Mar 28, 2017
Low cost gain clamped EDFA for TWDM passive optical network application
GOOGLE INC11 citations83
US9438005B1Sep 6, 2016
Calibration of a tunable DBR laser
GOOGLE INC8 citations83
US9001852B1Apr 7, 2015
Wavelength tunable laser
GOOGLE INC9 citations83
US10243687B2Mar 26, 2019
Optical network unit wavelength tuning
GOOGLE INC2 citations72
US9735541B1Aug 15, 2017
Calibration of external-cavity tunable lasers
GOOGLE INC5 citations72
US9240672B1Jan 19, 2016
Wavelength tunable laser
GOOGLE INC4 citations72
US10171199B2Jan 1, 2019
Tunable laser in an optical access network
GOOGLE INC0 citations52
US10158930B2Dec 18, 2018
Upgrading PON systems using a multi-cycle field AWG
GOOGLE INC0 citations52
US9729950B2Aug 8, 2017
Upgrading PON systems using a multi-cycle field AWG
GOOGLE INC0 citations52
US10050708B2Aug 14, 2018
Feeder fiber and central office redundancy
GOOGLE INC0 citations51
US9948422B2Apr 17, 2018
Low cost gain clamped EDFA for TWDM passive optical network application
GOOGLE INC0 citations51
US10063944B2Aug 28, 2018
Feeder fiber and central office redundancy
GOOGLE INC0 citations41
GOOGLE LLC
11 patentsUS10461498B2Oct 29, 2019
Common cathode laser driving circuit
GOOGLE LLC6 citations83
US10153612B1Dec 11, 2018
Tunable laser bias circuit
GOOGLE LLC6 citations72
US10651946B1May 12, 2020
In-field calibration of laser transmitter
GOOGLE LLC2 citations69
US10516479B1Dec 24, 2019
Feeder fiber and central office redundancy
GOOGLE LLC1 citations62
US10666379B2May 26, 2020
Optical network unit wavelength tuning
GOOGLE LLC0 citations51
US10439722B2Oct 8, 2019
Feeder fiber and central office redundancy
GOOGLE LLC0 citations51
US11901696B2Feb 13, 2024
Wavelength drift suppression for burst-mode tunable EML laser
GOOGLE LLC0 citations50
US11600965B2Mar 7, 2023
Burst mode laser driving circuit
GOOGLE LLC0 citations50
US11594856B2Feb 28, 2023
Wavelength drift suppression for burst-mode tunable EML transmitter
GOOGLE LLC0 citations50
US10992387B2Apr 27, 2021
Port replicator
GOOGLE LLC0 citations50
US12009635B2Jun 11, 2024
Switching circuit for burst-mode tunable laser
GOOGLE LLC0 citations49