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Kakitsuka Lab
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A lab that creates the next form of information and communications with semiconductor lasers.
AboutAbout the lab
Supporting information and communications with technology that emits light.
Kakitsuka Lab studies semiconductor lasers and their applications to information and communications.
Photonics has supported the information society through a wide range of information and communication systems, including optical communications, sensors, and measurement.
Today, expectations are growing for reducing the power consumption of data communications and for building high-performance computers with optical neural networks that use light.
With optical circuit design as its core technology, the lab proposes light-emitting systems made of optical components such as semiconductor lasers, together with information processing circuits.
Key terms
- Semiconductor laser
- A small laser that emits light when electricity is passed through a semiconductor. It is used in optical communications and for reading optical discs.
- Photonics
- The field of technology for generating, manipulating, and detecting light. It carries information with light instead of electrons.
- Optical circuit
- A circuit that combines light paths to split and merge light. It is the optical counterpart of an electronic circuit.
NewsLab news
A paper by Prof. Kakitsuka and colleagues was published in Optics Express
A paper by Prof. Kakitsuka and colleagues was published in IEEE Journal of Quantum Electronics
ResearchResearch themes
Aiming to make information and communication systems even more advanced, the lab proposes light-emitting systems made of optical components such as semiconductor lasers, and information processing circuits that use them. With optical circuit design as its core technology, it extends its work to proposals for a variety of devices and systems.
*Illustrative imageSemiconductor Lasers and Light-Emitting Devices
The lab studies complex-coupled DFB lasers, the optimal design of narrow-linewidth lasers, topological lasers, and more. From the side that generates light, it builds the devices that support optical communication links.
*Illustrative imageOptical Circuit Simulation
By building simulation models, the lab makes visible how light behaves inside a device structure, and uses this to guide designs that improve performance.
MembersFaculty
- ProfessorTakaaki Kakitsuka
VoicesStudent voices
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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: “Laser diode chip” NASA
（PD NASA。 作者欄なし） / Public domain (cropped) - Semiconductor Lasers and Light-Emitting Devices: “Laser diode with case cut away” Arconsoli / CC BY-SA 4.0 (cropped)
- Optical Circuit Simulation: “Interferring waves two stimulators simulation” Florian Weber / CC BY-SA 3.0 (cropped)
- Related lab (Takahata Lab): “Silicon Photonics 300mm wafer” Ehsanshahoseini / CC BY-SA 4.0 (cropped)
- Related lab (Tanzawa Lab): “TI AHC08 Die Shot (4x2-Input AND Gate)” Cole L / CC BY-SA 2.0 (cropped)
- Related lab (Ikenaga Lab): “CMOS image sensor chip-scale package oblique” Phiarc / CC BY-SA 4.0 (cropped)
- Related lab (Makino Lab): “Cymatic” Stefaaane Shan / CC BY-SA 4.0 (cropped)
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