Enter inventor name

Average Co-Inventor Count = 2.1

ph-index = 9

Forward Citations = 260(Granted Patents)

Location History:

Atsugi, JP (1988)
Kawasaki, JP (1995 - 2005)
Hachioji, JP (2005 - 2019)
Tokyo, JP (2004 - 2021)

Company Filing History:

Macom Technology Solutions Holdings, Inc.

Fujitsu Quantum Devices Limited

patents

6. 3 out of 832,891

Other

patents

where one patent can have more than one assignee

Years Active: 1988-2021

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20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11018477 - Tunable laser for coherent transmission system (2021-05-25),

2. 10481333 - Athermal silicon photonics wavelength locker and meter (2019-11-19),

3. 7911686 - Optical module and optical communication system (2011-03-22),

4. 7711019 - Variable wavelength light source (2010-05-04),

5. 6973238 - Optical switch and optical communication system (2005-12-06),

6. 6924918 - Optical modulator and method of manufacturing the same (2005-08-02),

7. 6906308 - Semiconductor light receiving device in which optical and electric signal are propagated at matched velocities (2005-06-14),

8. 6872966 - Optical semiconductor device (2005-03-29),

9. 6862124 - Semiconductor optical modulator, mach-zehnder optical modulator employing the same, and method of manufacturing semiconductor optical modulator (2005-03-01),

10. 6836573 - Directional coupler type optical modulator with traveling-wave electrode (2004-12-28),

11. 6710378 - Semiconductor light reception device of end face light incidence type (2004-03-23),

12. 6579737 - Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film (2003-06-17),

13. 6448583 - Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film (2002-09-10),

14. 6238943 - Optical semiconductor device and a method of manufacturing the same (2001-05-29),

15. 6081632 - Method of producing optical waveguide system, optical device and optical (2000-06-27),

Title: Haruhisa Soda: Innovator in Tunable Laser Technology

Introduction

Haruhisa Soda, based in Hachioji, Japan, is a prominent inventor with an impressive portfolio of 20 patents. His work primarily focuses on the field of photonics, specifically in the development of tunable laser devices and wavelength lockers, which have significant implications for communications technology.

Latest Patents

Among the latest innovative contributions of Haruhisa Soda is a tunable laser for coherent transmission systems. This advanced laser device incorporates an adaptive ring mirror, a gain waveguide, a loop mirror waveguide, and a booster amplifier waveguide. The combination of these elements allows for the alteration of the output wavelength, making it highly suitable for applications in coherent fiber-optic communications.

Another noteworthy patent is the athermal silicon photonics wavelength locker and meter, which features first and second waveguides that guide light. The device employs a multimode interference (MMI) coupler to merge the light from these waveguides, creating an interference pattern that is vital for accurately managing wavelengths in telecommunications. The interference pattern selector enhances the precision of the outputs, ensuring that they meet the power levels requisite for modern telecommunication networks.

Career Highlights

Haruhisa Soda has had a fruitful career in prominent corporations such as Fujitsu Corporation, where he honed his skills and contributed to multiple innovations in the field of photonics.

Collaborations

His inventive journey has been complemented by collaborations with esteemed colleagues, including Takuya Fujii and Hirohiko Kobayashi. These partnerships have fostered a collaborative environment that encourages innovation and the advancement of technology.

Conclusion

Haruhisa Soda stands out as a significant figure in the realm of tunable lasers and optical devices. His contributions are vital for the future of coherent transmission systems, and his patents continue to push the boundaries of what's possible in optical communications. With each innovation, he reinforces the importance of research and collaboration in the technological landscape.

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