Zobrazeno 1 - 10 of 42 pro vyhledávání: '"Joji Yamaguchi"'
1
Reduction of ambient temperature dependence of KTa1-xNbxO3 electro-optic deflector by double-thermistor structure
Autor: Joji Yamaguchi, Tadayuki Imai, Shoko Tatsumi
Publikováno v: Precision Engineering. 59:150-155
This paper describes theoretical and experimental studies for reducing ambient temperature dependence of KTN deflector by double-thermistor structure. A KTN deflector deflects transmitted beam by injecting electrons into KTN and applying voltage. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7a0c6801c662c591bc203935580d476
https://doi.org/10.1016/j.precisioneng.2019.05.011
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2
Stable wavelength-swept light source designed for industrial applications using KTN beam-scanning technology
Autor: Masahiro Ueno, Shogo Yagi, Joji Yamaguchi, Mahiro Yamada, Yuzo Sasaki, Tadashi Sakamoto, Koei Yamamoto, Tadayuki Imai, Seiji Toyoda, Masatoshi Fujimoto, Takashi Sakamoto, Eiichi Sugai
Publikováno v: SPIE Proceedings.
Using light-beam scanning technology based on a potassium tantalate niobate (KTa1-xNbxO3, KTN) single crystal, we constructed a wavelength-swept light source for industrial applications. The KTN crystal is placed in an external cavity as an electro-o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::67933bb193c25d3adb9079b819567b3b
https://doi.org/10.1117/12.2250229
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3
Electro-optic KTN deflector stabilized with 405-nm light irradiation for wavelength-swept light source
Autor: Seiji Toyoda, Mahiro Yamada, Tadashi Sakamoto, Masahiro Ueno, Eiichi Sugai, Tadayuki Imai, Masatoshi Fujimoto, Takashi Sakamoto, Joji Yamaguchi, Shogo Yagi, Yuzo Sasaki, Koei Yamamoto
Publikováno v: SPIE Proceedings.
We have developed a highly stable electro-optic KTa1-xNbxO3 (KTN) deflector by enhancing electron transportation through KTN crystal. The amount of current is increased with 405-nm light irradiation to rapidly generate a stable refractive-index chang
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61cf67233b30adf5f4140520072f6768
https://doi.org/10.1117/12.2251413
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8
Beam steering by computer generated hologram for optical switches
Autor: Kenya Suzuki, Joji Yamaguchi, Keita Yamaguchi
Publikováno v: SPIE Proceedings.
We describe a computer generated hologram (CGH) method for application to a multiple input and multiple output (MxN) optical switch based on a liquid crystal on silicon (LCOS). The conventional MxN optical switch needs multiple spatial light modulati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::acf83b17b573d293263f7b910f938b5e
https://doi.org/10.1117/12.2217645
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9
In-band OSNR Monitors Comprising Programmable Delay Line Interferometer Integrated with Wavelength Selective Switch by Spatial and Planar Optical Circuit
Autor: Kenya Suzuki, Naru Nemoto, Mitsumasa Nakajima, Joji Yamaguchi, Toshikazu Hashimoto, Keita Yamaguchi
Publikováno v: OFC
We propose a novel delay line interferometer and demonstrate its application to in-band OSNR monitors integrated with wavelength selective switches (WSSs). The WSS-integrated monitors are capable of detecting OSNR with 1.2-dB accuracy.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3002e10e7d6d09114762c369a347bd40
https://doi.org/10.1364/ofc.2016.th2a.11
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