Inventor
XU QIANFAN
US32 patents
⚠️ This page may combine multiple inventors who share the name “XU QIANFAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUTUREWEI TECHNOLOGIES INC
15 patentsUS10203454B2Feb 12, 2019
Dense wavelength-division multiplexing (DWDM) network and method
FUTUREWEI TECHNOLOGIES INC10 citations83
US9632281B2Apr 25, 2017
Free space grating coupler
FUTUREWEI TECHNOLOGIES INC5 citations83
US9523870B2Dec 20, 2016
Vertical PN silicon modulator
FUTUREWEI TECHNOLOGIES INC10 citations83
US9933570B2Apr 3, 2018
Integration of V-grooves on silicon-on-insulator (SOI) platform for direct fiber coupling
FUTUREWEI TECHNOLOGIES INC3 citations73
US9507180B2Nov 29, 2016
Patterned poly silicon structure as top electric contact to MOS-type optical modulators
FUTUREWEI TECHNOLOGIES INC4 citations73
US9244227B2Jan 26, 2016
Polarization splitter/combiner based on a one-dimensional grating coupler
FUTUREWEI TECHNOLOGIES INC3 citations73
US10133098B2Nov 20, 2018
MOS capacitor optical modulator with transparent conductive and low-refractive-index gate
FUTUREWEI TECHNOLOGIES INC3 citations72
US10120135B2Nov 6, 2018
Inverse taper waveguides for low-loss mode converters
FUTUREWEI TECHNOLOGIES INC2 citations72
US9709741B2Jul 18, 2017
Inverse taper waveguides for low-loss mode converters
FUTUREWEI TECHNOLOGIES INC3 citations72
US9838239B2Dec 5, 2017
Digital generation of multi-level phase shifting with a Mach-Zehnder modulator (MZM)
FUTUREWEI TECHNOLOGIES INC5 citations71
US10641966B2May 5, 2020
Free space grating coupler
FUTUREWEI TECHNOLOGIES INC1 citations62
US10268056B2Apr 23, 2019
Interdigitated optical modulator
FUTUREWEI TECHNOLOGIES INC0 citations52
US9823499B2Nov 21, 2017
Patterned poly silicon structure as top electric contact to MOS-type optical modulators
FUTUREWEI TECHNOLOGIES INC0 citations52
US9696567B2Jul 4, 2017
Interdigitated optical modulator
FUTUREWEI TECHNOLOGIES INC0 citations51
US10645473B2May 5, 2020
All-optical networks based on switchable wavelength connects (SWCs)
FUTUREWEI TECHNOLOGIES INC0 citations41
HEWLETT PACKARD DEVELOPMENT CO
5 patentsUS7532785B1May 12, 2009
Photonic interconnects for computer system devices
HEWLETT PACKARD DEVELOPMENT CO44 citations92
US7965914B2Jun 21, 2011
Critically coupled microring resonator and method
HEWLETT PACKARD DEVELOPMENT CO9 citations84
US7889956B2Feb 15, 2011
Photonic interconnects for computer system devices
HEWLETT PACKARD DEVELOPMENT CO7 citations84
US8369665B2Feb 5, 2013
Hybrid guided-mode resonance filter and method employing distributed bragg reflection
HEWLETT PACKARD DEVELOPMENT CO6 citations72
US7907811B2Mar 15, 2011
Optical waveguides and methods of making the same
HEWLETT PACKARD DEVELOPMENT CO2 citations63