Research Topic

As part of the Research Center for Advanced Science and Technology (RCAST), we also actively pursue interdisciplinary research in collaboration with different labs from the industry, governmental organizations, and universities; domestically and internationally.

Optical Coherent Tomography

Optical Coherent Tomography

OCT is an imaging technique that uses coherent light to capture micrometer-resolution, used for medical imaging and industrial nondestructive testing.

Light Detection and Ranging

Light Detection and Ranging

LiDAR (Light Detection and Ranging) is a technology for detecting the distance. It can be applied for the auto driving car and 3D imaging.

Optical Fiber Device

Optical Fiber Device

Optical devices using nano-carbon (carbon nanotubes and graphene), fiber lasers and amplifiers, nonlinear optics, photonics, optoelectronics.

CNT Mode-Locked Fiber Laser

CNT Mode-Locked Fiber Laser

Achieve mode-locking of rare-earth-doped fiber laser at 2 μm by using graphene or single-walled carbon nanotubes.

Graphene Photonics

Graphene Photonics

Chip Cavity Mode-Locked by using the graphene covered chip (intra-cavity patterned graphene on SiN Waveguides)

Photonic Sensing

Photonic Sensing

Photonic sensing technologies based on spectroscopic, fiber optics, and LIDAR technologies. And explore the chip-scale integrated planar photonic sensing

Latest News

Recent news and activities at Yamashita-Set Lab. Discover our laboratory, research works, conference presentations, papers and all the fun things that we do. We work hard and we play hard.

Prof. Ben Eggleton visited Yamashita-Set Lab

Prof. Ben Eggleton, professor and Pro-Vice-Chancellor of the University of Sydney came to visit Yamashita-Set lab, and gave an academic talk on Photonic Radar.

The event saw enthusiastic participation from students, researchers, and faculty members from whole university and RCAST, who engaged in lively discussions and gained valuable insights from Prof. Eggleton’s expertise on on-chip photonics. The talk was followed by a Q&A session, where attendees had the opportunity to delve deeper into the subject matter.

CLEO2024 at Charlotte

The Conference on Lasers and Electro-Optics (CLEO) is the premier international forum for scientific and technical optics, uniting the fields of lasers and opto-electronics by bringing together all aspects of laser technology, from basic research to industry applications. This year CLEO2024 is held at Charlotte, there we presented our works and communicated with experts on photonics worldwide.

CLEO2024: We will present 8 papers

We will be presenting 8 papers at CLEO2024 next week. Please come to our sessions:

  1. AM1A.4 • 08:45
    “Signal reconstruction in dispersion-tuned swept laser OCT using compressed sensing,” Yuki Katsutani, Takuma Shirahata, Shinji Yamashita
  2. AM3A.1 • 13:30
    “Continuous Strain Profiling with Low-Coherence Brillouin Optical Correlation-Domain Reflectometry,” Kohei Noda, Rei Sugihara, Shinya Sadachika, Atsushi Takata, Kentaro Nakamura, Gen Endo, Yosuke Mizuno, Sze Y. Set, Shinji Yamashita
  3. SM4I.3 • 16:45
    “783-MHz fundamental repetition rate CNT mode-locked all Er-doped fiber ring laser,” Maolin Dai, Bowen Liu, Yifan Ma, Takuma Shirahata, Ruoao Yang, Zhigang Zhang, Sze Y. Set, Shinji Yamashita
  4. SM4I.4 17:00
    “Pump-controlled mode-locking switching in an all-polarization-maintaining fiber laser,” Maolin Dai, Bowen Liu, Guanyu Ye, Yifan Ma, Naoki Yamaguchi, Takuma Shirahata, Sze Y. Set, Shinji Yamashita
  5. SM4I.6 17:30
    “L-band tunable mode-locked fiber laser achieving up to 19 kHz wavelength sweeping rate,” Guanyu YE, Kin K. Chow, Bowen Liu, Yifan Ma, Maolin Dai, Takuma Shirahata, Shinji Yamashita, Sze Y. Set
  6. JW2A.58 (Poster)
    “Temperature Sensitivity of Modulation Depth in a SWCNT/PDMS Saturable Absorber,” Rhona Hamilton, Moeri Horiuchi, Takuma Shirahata, Sze Y. Set, Shinji Yamashita
  7. JTh2A.180 (Poster)
    “Super-Resolution of Optical Thickness Measurement employing Correlation-based Spectrum Estimation,” Naoki Yamaguchi, Takanori Yamauchi, Takayuki Kitamura, Masaharu Imaki, Shinji Yamashita, Sze Y. Set
  8. SF1Q.7 • 09:45
    “Polarization-Multiplexed Dual-Comb Generation with Tunable Repetition Rates,” Bowen Liu, Maolin Dai, Takuma Shirahata, Shinji Yamashita, Sze Y. Set

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