Inventor
HE JIAN-JUN
CA19 patents
⚠️ This page may combine multiple inventors who share the name “HE JIAN-JUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
METROPHOTONICS INC
8 patentsUS6298186B1Oct 2, 2001
Planar waveguide grating device and method having a passband with a flat-top and sharp-transitions
METROPHOTONICS INC137 citations97
US6654533B1Nov 25, 2003
Polarization independent waveguide structure
METROPHOTONICS INC21 citations92
US6904205B2Jun 7, 2005
Resolution enhanced optical spectrometer having a fixed number of photodetector elements
METROPHOTONICS INC22 citations91
US6753958B2Jun 22, 2004
Resolution enhanced optical spectrometer having a fixed number of photodetector elements
METROPHOTONICS INC20 citations91
US7019893B2Mar 28, 2006
Optical dynamic gain amplifier
METROPHOTONICS INC8 citations73
US6768841B2Jul 27, 2004
Integrated optical interleaver/de-interleaver
METROPHOTONICS INC11 citations73
US6959129B2Oct 25, 2005
Bidirectional multiplexer and demultiplexer based on a single echelle waveguide grating
METROPHOTONICS INC8 citations72
US6650809B2Nov 18, 2003
Multiple band optical multiplexer and demultiplexer
METROPHOTONICS INC8 citations68
CA NAT RESEARCH COUNCIL
5 patentsUS5937113AAug 10, 1999
Optical grating-based device having a slab waveguide polarization compensating region
CA NAT RESEARCH COUNCIL100 citations92
US6339662B1Jan 15, 2002
Wavelength stabilized planar waveguide optical devices incorporating a dispersive element
CA NAT RESEARCH COUNCIL73 citations91
US6526193B1Feb 25, 2003
Digital optical switch
CA NAT RESEARCH COUNCIL9 citations72
US5757023AMay 26, 1998
Fabrication of quantum well polarization independent active devices
CA NAT RESEARCH COUNCIL11 citations71
US6701034B2Mar 2, 2004
Digital optical switch
CA NAT RESEARCH COUNCIL0 citations51
HE JIAN-JUN
4 patentsUS7738527B2Jun 15, 2010
Wavelength switchable semiconductor laser using half-wave coupled active double-ring resonator
HE JIAN-JUN27 citations91
US9052291B2Jun 9, 2015
Optical sensor based on a broadband light source and cascaded waveguide filters
HE JIAN-JUN9 citations82
US7447246B2Nov 4, 2008
Q-modulated semiconductor laser
HE JIAN-JUN8 citations72
US7382817B2Jun 3, 2008
V-coupled-cavity semiconductor laser
HE JIAN-JUN5 citations61