Inventor
CHENG YIHAO
CA46 patents
⚠️ This page may combine multiple inventors who share the name “CHENG YIHAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JDS FITEL INC
25 patentsUS5790314AAug 4, 1998
Grin lensed optical device
JDS FITEL INC118 citations98
US5471340ANov 28, 1995
Reflective optical non-reciprocal devices
JDS FITEL INC122 citations98
US6607313B1Aug 19, 2003
Micro-optic delay element for use in a polarization multiplexed system
JDS FITEL INC58 citations96
US5799121AAug 25, 1998
Multi-port optical device
JDS FITEL INC56 citations96
US5768005AJun 16, 1998
Multi-stage optical isolator
JDS FITEL INC66 citations96
US5745626AApr 28, 1998
Method for and encapsulation of an optical fiber
JDS FITEL INC123 citations96
US5629995AMay 13, 1997
Wavelength filter arrangements for use in fiber optics
JDS FITEL INC69 citations96
US5574596ANov 12, 1996
Optical circulator
JDS FITEL INC76 citations96
US5481402AJan 2, 1996
Tunable optical filter
JDS FITEL INC59 citations94
US5825950AOct 20, 1998
Optical isolator
JDS FITEL INC23 citations93
US5701375ADec 23, 1997
Method and system for aligning of optical elements
JDS FITEL INC24 citations93
US5680237AOct 21, 1997
Graded index lens system and method for coupling light
JDS FITEL INC21 citations93
US5657155AAug 12, 1997
Optical tap coupler device
JDS FITEL INC26 citations93
US5594821AJan 14, 1997
Integrated optical isolator
JDS FITEL INC26 citations93
US5588078ADec 24, 1996
Non-reciprocal optical waveguide coupling device
JDS FITEL INC49 citations93
US6529328B1Mar 4, 2003
Optical filter
JDS FITEL INC28 citations92
US5754718AMay 19, 1998
Hybrid optical filtering circuit
JDS FITEL INC30 citations92
US5539577AJul 23, 1996
Means to lessen unwanted reflections in an optical device
JDS FITEL INC52 citations91
US6438291B1Aug 20, 2002
Coupling of light into a monolithic waveguide device
JDS FITEL INC33 citations90
US6498676B1Dec 24, 2002
Optical filter for use or with an optical amplifier
JDS FITEL INC18 citations83
US6449091B1Sep 10, 2002
Optical isolator
JDS FITEL INC7 citations74
US6393179B1May 21, 2002
Optical coupling system
JDS FITEL INC11 citations74
US6292604B1Sep 18, 2001
Optical coupler arrangement
JDS FITEL INC12 citations74
US6268954B1Jul 31, 2001
Method and system for controlling the slope of an output response
JDS FITEL INC14 citations74
US6219481B1Apr 17, 2001
Optical filter
JDS FITEL INC8 citations74
(unassigned)
14 patentsUS5920411AJul 6, 1999
Optical multiplexing/demultiplexing device
83 citations96
US6157485ADec 5, 2000
Lens arrangement for enhancing the coupling of light shifted by an optical element
32 citations93
US6055104AApr 25, 2000
Optical attenuator
31 citations93
US6014256AJan 11, 2000
Polarizing beam splitter/combiner
33 citations93
US5930422AJul 27, 1999
Optical circulator
25 citations93
US5850493ADec 15, 1998
Device for focusing light through an optical component
48 citations93
US6059462AMay 9, 2000
Optical coupling system
19 citations91
US6044187AMar 28, 2000
Multi-port fiber optical device
18 citations84
US6014254AJan 11, 2000
Optical device for splitting an input beam into two orthogonal polarization states
18 citations84
US5878176AMar 2, 1999
Optical circulator
17 citations84
US6091866AJul 18, 2000
Optical isolator
8 citations74
US5991076ANov 23, 1999
Optical circulator
12 citations74
US6014484AJan 11, 2000
Method and device for optical coupling
14 citations71
US6055112AApr 25, 2000
Lensed cascaded optical filter
13 citations62
JDS UNIPHASE INC
5 patentsUS6142678ANov 7, 2000
Optical coupling
JDS UNIPHASE INC66 citations96
US6540411B1Apr 1, 2003
Optical coupling
JDS UNIPHASE INC23 citations93
US6134360AOct 17, 2000
Optical fibre sleeve
JDS UNIPHASE INC33 citations92
US6657785B2Dec 2, 2003
Bi-directional circulator
JDS UNIPHASE INC9 citations74
US6711311B2Mar 23, 2004
Polarization beam splitter or combiner
JDS UNIPHASE INC11 citations71