[18a-W9_326-1~9] 3.5 Ultrashort-pulse and high-intensity lasers | The 73rd JSAP Spring Meeting 2026

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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)

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)

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 Yang^1,2, Keisuke Ogawa¹, Ryomei Takabayashi¹, Yuta Mototani¹, Tatsuki Murakami¹, Hajime Kumazaki¹, Yongyong Zhuang², Xiaoyong Wei², 〇Shun Fujii¹ (1.Keio Univ., 2.Xian Jiaotong Univ.)

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.)

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.)

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)

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)

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.)

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 Nakano^1,2, Fong Chee Fai², Rai Kou², Junia Nomura¹, Guangwei Cong², Atsushi Ishizawa¹ (1.Nihon Univ., 2.AIST)

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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