Zah; Chung-En

Patent Applications and Registrations

Patent applications and USPTO patent grants for Zah; Chung-En.The latest application filed is for "multiwavelength quantum cascade laser via growth of different active and passive cores".

Company Profile

0.58.57

Zah; Chung-En - Holmdel NJ
Zah; Chung-en - Marlboro NJ

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Surface emitting multiwavelength distributed-feedback concentric ring lasers Grant 10,811,845 - Caneau , et al. October 20, 2	2020-10-20
Multiwavelength quantum cascade laser via growth of different active and passive cores Grant 10,431,957 - Caneau , et al. O	2019-10-01
Waveguide structure for mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages Grant 9,948,063 - Caneau , et al. April 17, 2	2018-04-17
P-type isolation regions adjacent to semiconductor laser facets Grant 9,917,421 - Caneau , et al. March 13, 2	2018-03-13
Monolithic wide wavelength tunable mid-IR laser sources Grant 9,865,990 - Caneau , et al. January 9, 2	2018-01-09
Multiwavelength Quantum Cascade Laser Via Growth Of Different Active And Passive Cores App 20170179685 - Caneau; Catherine Genevieve ; et al.	2017-06-22
Multiwavelength quantum cascade laser via growth of different active and passive cores Grant 9,685,766 - Caneau , et al. June 20, 2	2017-06-20
Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices Grant 9,601,901 - Caneau , et al. March 21, 2	2017-03-21
Waveguide Structure For Mid-ir Multiwavelength Concatenated Distributed-feedback Laser With An Active Core Made Of Cascaded Stages App 20170070032 - Caneau; Catherine Genevieve ; et al.	2017-03-09
Quantum cascade laser design with stepped well active region Grant 9,548,590 - Caneau , et al. January 17, 2	2017-01-17
Waveguide structure for mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages Grant 9,547,124 - Caneau , et al. January 17, 2	2017-01-17
Mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages Grant 9,455,551 - Caneau , et al. September 27, 2	2016-09-27
Monolithic Wide Wavelength Tunable Mid-ir Laser Sources App 20160268772 - Caneau; Catherine Genevieve ; et al.	2016-09-15
Passive Waveguide Structure With Alternating Gainas/alinas Layers For Mid-infrared Optoelectronic Devices App 20160197454 - Caneau; Catherine Genevieve ; et al.	2016-07-07
Monolithic wide wavelength tunable mid-IR laser sources Grant 9,385,509 - Caneau , et al. July 5, 2	2016-07-05
Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices Grant 9,231,368 - Caneau , et al. January 5, 2	2016-01-05
Heating elements for multi-wavelength DBR laser Grant 9,172,211 - Kuksenkov , et al. October 27, 2	2015-10-27
Monolithic Wide Wavelength Tunable Mid-ir Laser Sources App 20150270685 - Caneau; Catherine Genevieve ; et al.	2015-09-24
Multiwavelength Quantum Cascade Laser Via Growth Of Different Active And Passive Cores App 20150263488 - Caneau; Catherine Genevieve ; et al.	2015-09-17
Passive Waveguide Structure With Alternating Gainas/alinas Layers For Mid-infrared Optoelectronic Devices App 20150249319 - Caneau; Catherine Genevieve ; et al.	2015-09-03
High-power low-loss GRINSCH laser Grant 9,042,416 - Ho , et al. May 26, 2	2015-05-26
Mid-ir Multiwavelength Concatenated Distributed-feedback Laser With An Active Core Made Of Cascaded Stages App 20150008327 - Caneau; Catherine Genevieve ; et al.	2015-01-08
Group III nitride-based green-laser diodes and waveguide structures thereof Grant 8,897,329 - Sizov , et al. November 25, 2	2014-11-25
Lift-off Processing For Formation Of Isolation Regions In Laser Diode Structures App 20140079087 - Liu; Shiwen ; et al.	2014-03-20
Laser characterization system and process Grant 8,670,109 - Wang , et al. March 11, 2	2014-03-11
Semiconductor Lasers With Indium Containing Cladding Layers App 20130329760 - Bhat; Rajaram ; et al.	2013-12-12
Laser Diodes Including Substrates Having Semipolar Surface Plane Orientations And Nonpolar Cleaved Facets App 20130322481 - Bhat; Rajaram ; et al.	2013-12-05
Waveguide Structure For Mid-ir Multiwavelength Concatenated Distributed-feedback Laser With An Active Core Made Of Cascaded Stages App 20130240737 - Caneau; Catherine Genevieve ; et al.	2013-09-19
Surface Emitting Multiwavelength Distributed-feedback Concentric Ring Lasers App 20130221223 - Caneau; Catherine Genevieve ; et al.	2013-08-29
P-type isolation between QCL regions Grant 8,514,902 - Caneau , et al. August 20, 2	2013-08-20
Quantum Cascade Laser Design With Stepped Well Active Region App 20130136148 - Caneau; Catherine Genevieve ; et al.	2013-05-30
Multi-wavelength Dbr Laser App 20130114628 - Caneau; Catherine Genevieve ; et al.	2013-05-09
Heating Elements For Multi-Wavelength DBR Laser App 20130114635 - Kuksenkov; Dmitri Vladislavovich ; et al.	2013-05-09
Fracture resistant metallization pattern for semiconductor lasers Grant 8,391,330 - Chaparala , et al. March 5, 2	2013-03-05
Hole Blocking Layers In Non-polar And Semi-polar Green Light Emitting Devices App 20130044783 - Bhat; Rajaram ; et al.	2013-02-21
Hole blocking layers in non-polar and semi-polar green light emitting devices Grant 8,379,684 - Bhat , et al. February 19, 2	2013-02-19
Strain balanced laser diode Grant 8,358,673 - Bhat , et al. January 22, 2	2013-01-22
Laser Characterization System And Process App 20120268743 - Wang; Yin ; et al.	2012-10-25
Gallium Nitride Semiconductor Device On Soi And Process For Making Same App 20120252191 - Bhat; Rajaram ; et al.	2012-10-04
P-type Isolation Regions Adjacent To Semiconductor Laser Facets App 20120236890 - Caneau; Catherine G. ; et al.	2012-09-20
P-type Isolation Between Qcl Regions App 20120236889 - Caneau; Catherine G. ; et al.	2012-09-20
Strain Balanced Laser Diode App 20120213240 - Bhat; Rajaram ; et al.	2012-08-23
Gallium nitride semiconductor device on SOI and process for making same Grant 8,217,498 - Bhat , et al. July 10, 2	2012-07-10
Laser diodes comprising QWI output window and waveguide areas and methods of manufacture Grant 8,198,112 - Chang , et al. June 12, 2	2012-06-12
Group Iii Nitride-based Green-laser Diodes And Waveguide Structures Thereof App 20120069863 - Sizov; Dmitry ; et al.	2012-03-22
Split control of front and rear DBR grating portions Grant 8,121,169 - Nguyen , et al. February 21, 2	2012-02-21
MQW laser structure comprising plural MQW regions Grant 8,121,165 - Bhat , et al. February 21, 2	2012-02-21
Laser Diodes Comprising QWI Output Window and Waveguide Areas and Methods of Manufacture App 20110255567 - Chang; Chwan-Yang ; et al.	2011-10-20
Mqw Laser Structure Comprising Plural Mqw Regions App 20110243173 - Bhat; Rajaram ; et al.	2011-10-06
MQW laser structure comprising plural MQW regions Grant 7,983,317 - Bhat , et al. July 19, 2	2011-07-19
Semiconductor buried grating fabrication method Grant 7,981,591 - Li , et al. July 19, 2	2011-07-19
Native green laser semiconductor devices Grant 7,965,752 - Bhat , et al. June 21, 2	2011-06-21
Native Green Laser Semiconductor Devices App 20110128984 - Bhat; Rajaram ; et al.	2011-06-02
Gas Sensor Based On Photoacoustic Detection App 20110072886 - Caneau; Catherine Genevieve ; et al.	2011-03-31
Enhanced P-Contacts For Light Emitting Devices App 20110049469 - Bhat; Rajaram ; et al.	2011-03-03
Methods of fabricating metal contact structures for laser diodes using backside UV exposure Grant 7,833,695 - Xi , et al. November 16, 2	2010-11-16
Fracture Resistant Metallization Pattern For Semiconductor Lasers App 20100265982 - Chaparala; Satish Chandra ; et al.	2010-10-21
Split Control Of Front And Rear DBR Grating Portions App 20100260215 - Nguyen; Hong Ky ; et al.	2010-10-14
MQW Laser Structure Comprising Plural MQW Regions App 20100150193 - Bhat; Rajaram ; et al.	2010-06-17
Quantum well intermixing Grant 7,723,139 - Li , et al. May 25, 2	2010-05-25
GaN lasers on ALN substrates and methods of fabrication Grant 7,615,389 - Bhat , et al. November 10, 2	2009-11-10
Semiconductor buried grating fabrication method App 20090246707 - Li; Yabo ; et al.	2009-10-01
Laser source with interdigital heater electrodes and underlying current confinement layer Grant 7,567,595 - Hu , et al. July 28, 2	2009-07-28
Gallium nitride semiconductor device on SOI and process for making same App 20090101924 - Bhat; Rajaram ; et al.	2009-04-23
Laser source with interdigital heater electrodes and underlying current confinement layer App 20090086775 - Hu; Martin Hai ; et al.	2009-04-02
Quantum well intermixing App 20090086784 - Li; Yabo ; et al.	2009-04-02
Alignment of lasing wavelength with wavelength conversion peak using modulated wavelength control signal Grant 7,505,492 - Gollier , et al. March 17, 2	2009-03-17
System and method for modulating a semiconductor laser Grant 7,502,394 - Hu , et al. March 10, 2	2009-03-10
Semiconductor laser micro-heating element structure Grant 7,486,709 - Hu , et al. February 3, 2	2009-02-03
Wavelength control in semiconductor lasers Grant 7,483,458 - Bhatia , et al. January 27, 2	2009-01-27
Thermal compensation in semiconductor lasers Grant 7,480,317 - Hu , et al. January 20, 2	2009-01-20
GaN lasers on ALN substrates and methods of fabrication App 20080299691 - Bhat; Rajaram ; et al.	2008-12-04
Methods of fabricating metal contact structures for laser diodes using backside UV exposure App 20080299495 - Xi; Jingqun ; et al.	2008-12-04
Alignment of lasing wavelength with wavelength conversion peak using modulated wavelength control signal App 20080279234 - Gollier; Jacques ; et al.	2008-11-13
Method and device for performing wavelength modulation with Distributed Bragg Reflector (DBR) laser Grant 7,436,871 - Hu , et al. October 14, 2	2008-10-14
Method and device for performing DBR laser wavelength modulation free of thermal effect Grant 7,400,659 - Hu , et al. July 15, 2	2008-07-15
System and method for optically powering a remote network component Grant 7,388,892 - Nishiyama , et al. June 17, 2	2008-06-17
Wavelength Control In Semiconductor Lasers App 20080089373 - Bhatia; Vikram ; et al.	2008-04-17
Thermal compensation in semiconductor lasers App 20080075132 - Hu; Martin Hai ; et al.	2008-03-27
Thermal compensation in semiconductor lasers App 20080063016 - Bhatia; Vikram ; et al.	2008-03-13
Semiconductor laser micro-heating element structure App 20080025355 - Hu; Martin Hai ; et al.	2008-01-31
Semiconductor array tester Grant 7,256,879 - Hall , et al. August 14, 2	2007-08-14
Method and device for performing DBR laser wavelength modulation free of thermal effect App 20070133629 - Hu; Martin H. ; et al.	2007-06-14
System and method for modulating a semiconductor laser App 20060159139 - Hu; Martin H. ; et al.	2006-07-20
Method of manufacturing an InP based vertical cavity surface emitting laser and device produced therefrom Grant 7,072,376 - Caneau , et al. July 4, 2	2006-07-04
System and method for optically powering a remote network component App 20060133436 - Nishiyama; Nobuhiko ; et al.	2006-06-22
Method and device for performing wavelength modulation with distributed bragg reflector (DBR) laser App 20060120416 - Hu; Martin H. ; et al.	2006-06-08
Method of manufacturing an InP based vertical cavity surface emitting laser and device produced therefrom App 20060056475 - Caneau; Catherine G. ; et al.	2006-03-16
Semiconductor array tester App 20050128469 - Hall, Benjamin L. ; et al.	2005-06-16
Cladding-pumped quasi 3-level fiber laser/amplifier App 20050100073 - Hughes, Lawrence C. JR. ; et al.	2005-05-12
Passivation of semiconductor laser facets Grant 6,618,409 - Hu , et al. September 9, 2	2003-09-09
Bar Tester App 20030011357 - Hu, Martin ; et al.	2003-01-16
Wavelength-locked external cavity lasers with an integrated modulator Grant 6,295,308 - Zah September 25, 2	2001-09-25
Integrated multi-wavelength transmitter Grant 5,946,331 - Amersfoort , et al. August 31, 1	1999-08-31
Self-aligned transition from ridge to buried heterostructure waveguide, especially for multi-wavelength laser array integration Grant 5,805,755 - Amersfoort , et al. September 8, 1	1998-09-08
Redundant multi-wavelength laser arrays Grant 5,612,968 - Zah March 18, 1	1997-03-18
High-temperature, uncooled diode laser Grant 5,381,434 - Bhat , et al. January 10, 1	1995-01-10
Polarization-dependent and polarization-diversified opto-electronic devices using a strained quantum well Grant 5,117,469 - Cheung , et al. May 26, 1	1992-05-26
Geometry dependent doping and electronic devices produced thereby Grant 5,065,200 - Bhat , et al. November 12, 1	1991-11-12
Angled-facet flared-waveguide traveling-wave laser amplifiers Grant 4,965,525 - Zah October 23, 1	1990-10-23

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