The 73rd JSAP Spring Meeting 2026
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Session Details

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

[18a-W9_326-1~9]3.5 Ultrashort-pulse and high-intensity lasers

Wed. Mar 18, 2026 9:00 AM - 11:30 AM JST
Wed. Mar 18, 2026 12:00 AM - 2:30 AM UTC
W9_326 (West Bldg. 9)
Chair : Yoshiaki Nakajima(Toho Univ.), Shotaro Kitajima(Nagoya Univ.)
9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[18a-W9_326-1]On-Chip Short-Pulse Generation at 25-GHz Repetition Rates Using Multi-Stage Silicon Modulators

〇Haruki Yaguchi1, Tatsuto Okubo1, Guangwei Cong2, Rai Kou2, Xuejun Xu3, Kenichi Hitachi3, Junia Nomura1, Noritsugu Yamamoto2, Koji Yamada2, Katsuya Oguri3, Atsuhi Ishizawa1 (1.Nihon Univ, 2.AIST, 3.NTT BRL)
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9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[18a-W9_326-2]High-power, high-conversion-efficiency soliton microcomb generation by birefringence

Liu Yang1,2, Keisuke Ogawa1, Ryomei Takabayashi1, Yuta Mototani1, Tatsuki Murakami1, Hajime Kumazaki1, Yongyong Zhuang2, Xiaoyong Wei2, 〇Shun Fujii1 (1.Keio Univ., 2.Xian Jiaotong Univ.)
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9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[18a-W9_326-3]Optimization of waveguide structures of crystalline microresonators by machining and polishing for low-threshold microcomb generation

〇Hiroki Moriguchi1, Kai Yamaguchi1, Hajime Kumazaki1, Yasuhiro Kakinuma1, Takasumi Tanabe1, Shun Fujii1 (1.Keio Univ.)
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9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[18a-W9_326-4]Stabilization of CP dual soliton combs by bidirectional injection locking

〇Keisuke Ogawa1, Hajime Kumazaki1, Shun Fujii1 (1.Keio Univ.)
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10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)English Presentation

[18a-W9_326-5]Numerical Study of Intensity Noise Characteristics of the Soliton Self-Frequency Shift

〇Kejia Zeng1, Satoshi Ashihara1 (1.IIS)
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10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-W9_326-6]Raman-Soliton Dual-Comb Spectroscopy System Based on a Dual-Comb Fiber Laser

〇Takumi Takahoshi1, Naoki Takeshi1, Hisanari Takahashi2, Toshiyuki Kawashima2, Yoshiaki Nakajima1 (1.Toho Univ., 2.HPK)
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10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-W9_326-7]Full Stabilization of a Soliton Microcomb Referenced to a Fiber Frequency Comb

〇Riku Shibata1, Keisuke Ogawa1, Yuta Takahashi1, Hajime Kumazaki1, Shun Fujii1 (1.Keio Univ.)
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11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-W9_326-8]Bandwidth expansion of a 25-GHz repetition rate Electro-Optic modulation comb using a Mach-Zehnder modulator with feedback waveguide

〇(M1)Akihiro Nakano1,2, Fong Chee Fai2, Rai Kou2, Junia Nomura1, Guangwei Cong2, Atsushi Ishizawa1 (1.Nihon Univ., 2.AIST)
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11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[18a-W9_326-9]Generation of cylindrically-symmetric vector beam array using liquid crystal patterned
retarder

〇Keisaku Yamane1, Renshi Watanabe1, Myuto Sugawara1, Ryota Tamemoto1, Yuji Sasaki2 (1.Hokkaido Univ., 2.Hokakkai Gakuen Univ.)
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