The 87th JSAP Autumn Meeting 2026
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Session Details

Oral presentation3 Optics and Photonics : 3.5 Ultrashort-pulse and high-intensity lasers

[11a-C213-1~12]3.5 Ultrashort-pulse and high-intensity lasers

Fri. Sep 11, 2026 9:00 AM - 12:15 PM JST
Fri. Sep 11, 2026 12:00 AM - 3:15 AM UTC
C213 (Faculty of Engineering C Block)
9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[11a-C213-1]K-means clustering of gain-switched laser pulse waveforms with entropy features

〇Masataka Kobayashi1, Junko Usukura1,2, Yihan Qi1, Ryo Tamaki3,4, Hidekazu Nakamae1, Changsu Kim1,2, Takashi Ito2, Ikufumi Katayama3, Hidefumi Akiyama1,2 (1.ISSP, Univ. of Tokyo, 2.LDseed, 3.Yokohama Natl. Univ., 4.Keio Univ.)
9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[11a-C213-2]Interferometric autocorrelation analysis of pulse-trains from a gain-switched semiconductor laser

〇Makoto Yui1, Ryo Tamaki1,2, Marvin Weiss1, Hirokazu Tahara1, Masataka Kobayashi3, Yihan Qi3, Hidekazu Nakamae3, Changsu Kim3,4, Takashi Ito4, Hidefumi Akiyama3,4, Ikufumi Katayama1 (1.Yokohama National Univ., 2.Keio Univ., 3.ISSP, Univ. of Tokyo, 4.LDseed Co., Ltd)
9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)English Presentation

[11a-C213-3]Near-Transform-Limited-Picosecond-Pulse Generation in Gain-Switched DFB Lasers with Chirp Compensation and Spectral Filtering

〇Fuyi Cao1, Yihan Qi1, Cong Wang1, Masataka Kobayashi1, Shaoqiang Chen1,2, Hidefumi Akiyama1 (1.ISSP, Univ. of Tokyo, 2.Dept. of Elec. Eng., East China Normal Univ.)
9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[11a-C213-4]Sub-picosecond pulse generation from gain-switched single-mode DFB semiconductor lasers at room temperature

〇(D)Yihan Qi1, Fuyi Cao1, Hidekazu Nakamae1, To-Fan Pan1, Changsu Kim1, Masataka Kobayashi1, Cong Wang1, Shaoqiang Chen1,2, Takashi Ito3, Hidefumi Akiyama1,3 (1.ISSP, Univ. of Tokyo, 2.Dept. of Elec. Eng., East China Normal Univ., 3.LDseed)
10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[11a-C213-5]Rate- and delay-variable 532-nm picosecond light source with LD seed and PPLN

〇(D)Tofan Pan1, Masataka Kobayashi1, Yihan Qi1, Cong Wang1, Fuyi Cao1, Shaoqiang Chen1,2, Lung-Han Peng3,4, Takashi Ito5, Hidefumi Akiyama1,5 (1.ISSP, Univ. of Tokyo, 2.Dept. of Elec. Eng., East China Normal Univ., 3.GIPO, NTU, 4.Dept. of EE, NTU, 5.LDseed Co., Ltd.)
10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[11a-C213-6]Spectral peaks generation at 1.4 µm band utilizing high-resolution LCOS-SLM spectral filter

〇(M1)Koki Denda1, Shotaro Kitajima1, Norihiko Nishizawa1 (1.Nagoya Univ.)
10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C213-7]Effect of Electrode Geometry on Stabilization of Sub-Cycle Mid-Infrared Pulse Generation via Filamentation

〇(M2)Shuto Nakamura1, Neil Irvin Cabello1, Yue Zhao2, Takao Fuji1 (1.Toyota Tech. Inst., 2.Muroran Inst. Tech.)
11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C213-8]Generation of spatio-temporally controlled light waves based on orbital angular momentum mode multiplexing

〇Myuto Sugawara1, Ryuta Tamemoto1, Yuji Sasaki2, Keisaku Yamane1 (1.Hokkaidou Univ., 2.Hokkai Gakuen Univ.)
11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[11a-C213-9]Generation of three-dimensional optical helix

〇Keisaku Yamane1, Ryota Tamemoto1, Yuji Sasaki2 (1.Hokkaido Univ., 2.Hokakkai Gakuen Univ.)
11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C213-10]150 W Pulsed Amplification in a Tm-doped Fiber Laser System

〇Donguhn Kang1, Toshio Otsu1, Kotaro Nakagawa1, Yohei Kobayashi1 (1.ISSP, Univ.Tokyo)
11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C213-11]Development of a Yb:LuAG-Based Amplification System for Vacuum-Ultraviolet Frequency-Comb Generation

〇Ryoma Hasegawa1, Yuu Nagashima1, Akira Ozawa1,2 (1.Grad. Sch. Eng., Yokohama Natl. Univ., 2.IMS, Yokohama Natl. Univ.)
12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C213-12]Development and Characterization of a Mode-Locked Yb:KYW Ultrashort-Pulsed Laser

〇Yu Nagashima1, Ryoma Hasegawa1, Akira Ozawa1,2 (1.Grad. Sch. Eng., Yokohama Natl. Univ., 2.IMS, Yokohama Natl. Univ)
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