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Yamashita-Set Lab
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The lab develops optical devices using optical fibers and optical waveguides.
AboutAbout the lab
Opening new frontiers in communications and measurement with optical fibers.
The Yamashita-Set Lab develops optical devices for photonic networks (optical communication networks).
The lab also develops devices using optical fibers and optical waveguides for other applications.
Its research includes optical devices using nanocarbon materials such as carbon nanotubes and graphene, LiDAR, which measures distance using light, and OCT (optical coherence tomography), an imaging technique based on optical interference.
Key terms
- Mode-locking
- A method of aligning the phases of the many light waves inside a laser so that it repeatedly emits very short pulses of light.
- LiDAR
- A technology that shines light on an object and measures the distance to it from how the reflected light returns.
- OCT
- A technology that uses optical interference to create detailed cross-sectional images of the inside of an object. It is used for applications such as eye examinations.
NewsLab news
A master's student received the Optica Student Paper Award at CLEO-PR 2026
An invited review paper was selected as an Editor's Pick and featured on the journal's cover
The review paper "Advances and Challenges of Mode-Locked Fiber Lasers" was published in a special issue
ResearchResearch themes
The lab develops optical devices for photonic networks. It is extending devices based on optical fibers and optical waveguides to other applications, including imaging, distance measurement, and sensing.
*Illustrative imageOCT (Optical Coherence Tomography)
OCT is an imaging technique that uses optical interference. With its high, micrometer-scale resolution, it is used for imaging inside the body and for non-destructive inspection of industrial products.
*Illustrative imageLiDAR (Distance Measurement Using Light)
LiDAR is a technology that measures distance using light. It is used in applications such as autonomous driving and 3D measurement, and is attracting a great deal of attention.
*Illustrative imageOptical Fiber Devices
The lab studies optical devices using nanocarbons such as carbon nanotubes and graphene, as well as fiber lasers, optical amplifiers, and nonlinear optics.
*Illustrative imageGenerating Optical Pulses with Carbon Nanotubes
The lab mode-locks rare-earth-doped fiber lasers at a wavelength of 2 micrometers, using graphene or single-walled carbon nanotubes.
MembersFaculty
Members of the Yamashita-Set Lab include faculty, a secretary, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorShinji YamashitaPublications ↗
- Project ProfessorSze Yun SetPublications ↗
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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: “Зеркало резонатора волоконного лазера в темноте (Resonator mirror of Er ZBLAN fiber laser and its working fiber in the dark)” Hius1 / CC BY 4.0 (cropped)
- OCT (Optical Coherence Tomography): “Nibib sarcoma” Image courtesy of Dr. Stephen Boppart, Biophotonics Imaging Laboratory, University of Illinois at Urbana-Champaign. EB 005221 / Public domain (cropped)
- LiDAR (Distance Measurement Using Light): “Ouster OS1-64 lidar point cloud of intersection of Folsom and Dore St, San Francisco” Daniel L. Lu / CC BY 4.0 (cropped)
- Optical Fiber Devices: “Optical fiber in protective coating that transports a Laser beam - Laser Physics Lab - NTNU-NT” NTNU, Faculty of Natural Sciences and Technology / CC BY 2.0 (cropped)
- Generating Optical Pulses with Carbon Nanotubes: “Carbon nanotube (8,8) 3D ball” Jynto (talk) / CC0 (cropped)
- Related lab (Takenaka Lab): “Silicon Photonics 300mm wafer” Ehsanshahoseini / CC BY-SA 4.0 (cropped)
- Related lab (Tanemura Lab): “"Lines made with light" - diffraction gratings at the UK ATC ( )” Science and Technology Facilities Council / CC BY-SA 2.0 (cropped)
- Related lab (Neuromimetic Systems Lab (Kohno Lab)): “Cultured Rat Hippocampal Neuron ( )” ZEISS Microscopy from Germany / CC BY 2.0 (cropped)
- Related lab (Toprasertpong Lab): “Ferroelectric domains at a PZT grain boundary ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
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