All posts by erbium

Dr. Jungwon Kim, professor of KAIST, Korea, Fellow of Optica, visited us, and gave an IEEE Photonics Society Distinguished Lecture on “It’s perfect timing for optical frequency combs”.

This year CLEO-PR is held at Incheon, Korea. We are attending and spending a nice time there!

Figure: Prof. Yamashita is presenting Bowen’s recent work on advanced bicolor pulse encoding using high order soliton molecules.

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.

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.

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

We attended a seminar held by Minoshima-sensei at University of Electro-Communications. The content is about optical frequency comb and comb-based spectroscopy techniques.
We learnt a lot from Prof. Zhigang Zhang (Peking University), Prof. Youjian Song (Tianjin University), Prof. R. Jason Jones (University of Arizona), and Dr. Ruoao Yang (Peking University).

Participant: Maolin Dai, Bowen Liu and Yifan Ma.

From April, we have new members in our lab.

Doctroal students:
KIYOZUMI Takaki
ZHU Yuanjun

Master students:
YOSHIMURA Hayato
CHEN Hongxu
SUN Ziyi
NAN Yile

B4 students:
INOUE Juntaro
KOGUCHI Hidenari

Welcome all of you to become a part of our big family!

Dr. Shirahata-san has completed his research project successfully, and Horiuchi-san has completed her Master’s course. Congratulations to them! They will go for new positions, we wish them the best of luck for their future journey.

Alumni got together today, we had a great hanami along Meguro river !

Lab members enjoyed a weekend ski trip in Nagano-ken