Výsledky vyhledávání - "Kenichiro Tsuji"

Remotely Controlling Relative Phase of RF Signals Generated by Optical Beat Using SOAs

Autor: Shunya Hayashi, Tomoyuki Uehara, Kenichiro Tsuji

Publikováno v: 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ae3619f29c5720a0f87ead338454e28
https://doi.org/10.23919/oecc/psc53152.2022.9850085

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Optical frequency comb generation using femtosecond fiber laser and two types of optical fibers

Autor: Tomoyuki Uehara, Kenichiro Tsuji

Publikováno v: Fiber Lasers XVI: Technology and Systems.

We pursue locking of optical frequency comb for absolute frequency measurement. For the purpose, the characteristics of frequency comb are measured. At first, the characteristics in the fs pulse laser are measured by an autocorrelation technique. Sec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f81d06c710839e03074ee723b14c2b7b
https://doi.org/10.1117/12.2501755

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Research in Research Institute

Autor: Kazuo Koga, Kenichiro Tsuji

Publikováno v: The Proceedings of the Annual Convention of the Japanese Psychological Association. 84:ITL-002

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1a067faedf0b3ea5cc5e201dfea1ff2
https://doi.org/10.4992/pacjpa.84.0_itl-002

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A Spatial Gain Modulation Phenomenon in Brillouin Optical Time Domain Analysis Using a Couple of Pump and Probe Lights with Small Channel Spacing

Autor: Tomoyuki Uehara, Kenichiro Tsuji

Publikováno v: Nonlinear Optics (NLO).

We report a spatial gain modulation phenomenon in two-wavelength Brillouin optical time domain analysis for distributed optical fiber sensing. The dependence of modulation characteristics on channel spacing and power of pump lights is experimentally

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6465479d94699cf14cc77078e8076fd
https://doi.org/10.1364/nlo.2019.ntu4a.20

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Photonic generation of a phase-switchable ASK signal using orthogonal polarization modes of a single optical phase modulator

Autor: Kenichiro Tsuji, T. Uehara

Publikováno v: 2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC).

In this paper, we propose and demonstrate the photonic generation of phase-switchable ASK microwave signal using the orthogonal polarization modes of the optical phase modulator. The two-phase switching operation of the generated microwave signals wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::298e4fbb81ddd51d45d40e0eab3b813f
https://doi.org/10.1109/oecc.2017.8114797

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Sweep-free brillouin optical time domain analysis using two individual laser sources

Autor: Noriaki Onodera, Hitoshi Noda, Kenichiro Tsuji

Publikováno v: Optical Review. 19:381-387

We propose a sweep-free measurement technique for distributed Brillouin frequency shift in optical fibers applicable to distributed strain/temperature monitoring systems, using two sets of pump-probe lights generated by two individual laser sources.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a6fb328830623e486cfecf65fa644f69
https://doi.org/10.1007/s10043-012-0062-2

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Study of all-optical clock recovery performance by the primary and the secondary temporal Talbot effects in a second-order dispersive medium

Autor: Shunsuke Minami, Noriaki Onodera, Masatoshi Saruwatari, Masaki Oiwa, Kenichiro Tsuji

Publikováno v: Optical Fiber Technology. 16:192-204

We theoretically and experimentally study the all-optical clock recovery performance using the primary or the secondary temporal Talbot effects (PTTE or STTE, respectively) in a dispersive medium having the first-order dispersion together with the se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f73a7387d3119211deeb4d903360b6f0
https://doi.org/10.1016/j.yofte.2010.03.002

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Temporal-Talbot-effect-based preprocessing for pattern-effect reduction in all-optical clock recovery using a semiconductor-optical-amplifier-based fiber ring laser

Autor: Masaki Oiwa, Kenichiro Tsuji, Masatoshi Saruwatari, Shunsuke Minami, Noriaki Onodera

Publikováno v: Optical Fiber Technology. 16:63-71

We propose and experimentally demonstrate the temporal-Talbot-effect (TTE)-based preprocessing for the pattern-effect reduction in the all-optical clock recovery using a semiconductor-optical-amplifier (SOA)-based fiber ring laser (SOA-FRL). The TTE-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f032e2db667be2b324f499c3f9a121b5
https://doi.org/10.1016/j.yofte.2009.10.004

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