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Kawanishi Lab
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The lab studies integrated optical and wireless technologies that connect light and radio waves.
AboutAbout the lab
Seamlessly connecting light and radio waves.
The Kawanishi Lab studies systems that integrate optical communication and wireless communication.
Radio waves and light are both electromagnetic waves, but because the frequencies used for each have differed greatly, they have developed separately until now.
Drawing on the strengths of both electronic and optical technologies, the lab works on devices and systems that handle radio waves and light seamlessly.
Combining sensing with communication is also a new goal of the lab.
Key terms
- Electromagnetic waves
- A collective name for radio waves, light, X-rays, and similar waves, which have wave-like properties
- Microwave photonics
- Technology that uses optical technology to generate and detect high-frequency radio waves (microwaves and millimeter waves)
- Optical modulator
- A component that uses an electrical signal to change the intensity or waveform of light
ResearchResearch themes
Light and radio waves are both electromagnetic waves, but the frequencies used for each have differed greatly, so they have developed as separate technologies. Drawing on the strengths of both electronic and optical technologies, the Kawanishi Lab studies devices and systems that handle radio waves and light seamlessly.
*Illustrative imageMicrowave Photonics
This is a set of technologies that use photonics (optical technology) to generate, distribute, and detect high-frequency microwaves and millimeter waves. Possible applications include runway surveillance radar and high-precision measurement.
*Illustrative imageHigh-Speed Photodetection Devices
Making optical communication faster and merging it seamlessly with wireless systems requires making use of spatial multiplexing. Together with the National Institute of Information and Communications Technology (NICT), the lab is researching two-dimensional high-speed photodetectors.
*Illustrative imageHigh-Speed, High-Precision Optical Modulation
Optical modulators made of lithium niobate (LN modulators) combine precision with high speed, and are used in backbone systems and submarine cables. The lab works on methods for controlling and evaluating these modulators.
MembersFaculty
The members of the Kawanishi Lab consist of faculty members and doctoral, master's, and undergraduate students.
- ProfessorTetsuya Kawanishi
VoicesStudent voices
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RelatedLabs similar to Kawanishi Lab
Shi LabSchool of Fundamental Science and Engineering, Department of Electronic and Physical SystemsIntegrated systems
Kawamura LabSchool of Fundamental Science and Engineering, Department of Electronic and Physical SystemsIntelligent processing systems
Morimoto LabSchool of Fundamental Science and Engineering, Department of Electronic and Physical SystemsMEMS and microsystems
Uchino LabSchool of Fundamental Science and Engineering, Department of Electronic and Physical SystemsTheoretical physics, quantum many-body systemsThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Antenna of Airport Surveillance Radar” FBuHL09 / CC BY-SA 4.0 (cropped)
- Microwave Photonics: “Light dispersion of a mercury-vapor lamp with a flint glass prism IPNr°0125” D-Kuru / CC BY-SA 3.0 at (cropped)
- High-Speed Photodetection Devices: “Dragonfly eyes closeup” Вых Пыхманн / CC BY-SA 3.0 (cropped)
- High-Speed, High-Precision Optical Modulation: “First order Fresnel lens at Point Reyes lighthouse” Frank Schulenburg / CC BY-SA 4.0 (cropped)
- Related lab (史研究室): “AMD@7nm@RDNA 1th gen@Navi10@Radeon RX 5700 XT@ @ DSCx2@NIR - Flickr - FritzchensFritz” Fritzchens Fritz / CC0 (cropped)
- Related lab (川村研究室): “Artificial Neural Network with Chip” mikemacmarketing / photo on flickr / CC BY 2.0 (cropped)
- Related lab (森本研究室): “Myogenesis - ISRO (jsc2025e039327)” NASA Johnson Space Center / Public domain (cropped)
- Related lab (内野研究室): “Cold atoms experiment 04” Tomasz Kawalec / CC BY-SA 4.0 (cropped)
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