logo

For the Inventor, By the Inventor

Holmdel, NJ, United States of America

Chung-En Zah

This inventor holds 56 USPTO granted patents and 7 published patent applications and 12 EPO patents, primarily in Quantum Cascade Lasers (CPC class H01S). Top assignees: Corning Incorporated, Thorlabs Quantum Electronics, Inc., Bell Communications Research, Inc.. Active years: 1990-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chung-En Zah. Retrieved from https://idiyas.com/inventor/chung-en-zah

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 56 

% Patents Active = 60.7

 

Average Co-Inventor Count = 2.6

ph-index = 13

Forward Citations = 769(Granted Patents)

Forward Citations (Not Self Cited) = 759(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Marlboro, NJ (US) (1990 - 1992)
  • Holmdel, NY (US) (2008 - 2009)
  • Holmdel, NJ (US) (1995 - 2020)

Company Filing History:

goldMedal33 out of 7,479 
 
Corning Incorporated
 patents
silverMedal13 out of 19 
 
Thorlabs Quantum Electronics, Inc.
 patents
bronzeMedal6 out of 670 
 
Bell Communications Research, Inc.
 patents
4. 2 out of 26 
 
Tellium, Inc.
 patents
5. 1 out of 8 
 
Focuslight Technologies Inc.
 patents
6. 1 out of 461 
 
Telcordia Technologies, Inc.
 patents

Years Active: 1990-2024

Loading Chart...
Loading Chart...
Areas of Expertise:
Quantum Cascade Lasers
Mid-IR Laser Sources
Waveguide Structures
Multiwavelength Lasers
Semiconductor Devices
Optoelectronic Devices
Laser Characterization
Gallium Nitride
Thermal Compensation
DBR Laser Modulation
P-Type Isolation
Heating Elements
56 patents (USPTO):Explore Patents
1. 12132292 - Laser device (2024-10-29),
2. 10811845 - Surface emitting multiwavelength distributed-feedback concentric ring lasers (2020-10-20),
3. 10431957 - Multiwavelength quantum cascade laser via growth of different active and passive cores (2019-10-01),
4. 9948063 - Waveguide structure for mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages (2018-04-17),
5. 9917421 - P-type isolation regions adjacent to semiconductor laser facets (2018-03-13),
6. 9865990 - Monolithic wide wavelength tunable mid-IR laser sources (2018-01-09),
7. 9685766 - Multiwavelength quantum cascade laser via growth of different active and passive cores (2017-06-20),
8. 9601901 - Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices (2017-03-21),
9. 9548590 - Quantum cascade laser design with stepped well active region (2017-01-17),
10. 9547124 - Waveguide structure for mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages (2017-01-17),
11. 9455551 - Mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages (2016-09-27),
12. 9385509 - Monolithic wide wavelength tunable mid-IR laser sources (2016-07-05),
13. 9231368 - Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices (2016-01-05),
14. 9172211 - Heating elements for multi-wavelength DBR laser (2015-10-27),
15. 9042416 - High-power low-loss GRINSCH laser (2015-05-26),

Title: Innovator Spotlight: Chung-En Zah - Pushing boundaries in Laser Technology

Introduction:

Chung-En Zah, a prolific inventor based in Holmdel, NJ, has contributed significantly to the field of laser technology, holding an impressive 55 patents. His work focuses on advancing the capabilities of mid-IR multiwavelength distributed-feedback quantum cascade ring lasers.

Latest Patents:

Zah's recent patents showcase his expertise in developing cutting-edge laser technologies. His innovations include the Surface emitting multiwavelength distributed-feedback concentric ring lasers, which leverage quantum cascade core designs to produce optical gain in the mid-infrared region. Additionally, Zah pioneered the Multiwavelength quantum cascade laser via growth of different active and passive cores, enabling the production of mid-IR laser radiation with enhanced efficiency and performance.

Career Highlights:

Throughout his career, Zah has made significant contributions to prominent companies in the industry, including Corning Incorporated and Thorlabs Quantum Electronics, Inc. His innovative work has solidified his reputation as a leading figure in laser technology, pushing the boundaries of what is possible in the field.

Collaborations:

Zah has collaborated with esteemed professionals such as Catherine Genevieve Caneau and Feng Xie, showcasing his ability to work effectively in multidisciplinary teams to drive innovation forward. These collaborations have been instrumental in advancing laser technology and fostering a culture of creativity and excellence in the industry.

Conclusion:

Chung-En Zah's remarkable journey as an inventor underscores his dedication to advancing laser technology. With a rich portfolio of patents and a track record of successful collaborations, Zah continues to be at the forefront of innovation in the field. His pioneering work serves as an inspiration to aspiring inventors and highlights the boundless possibilities that exist in the world of laser technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…