Výsledky vyhledávání

Dependence on Grating Length of Transmission Spectra of Long-Period Fiber Bragg Grating

Autor: Takashi Yokouchi, Hiromu Iwata, Yusuke Sato, Seiki Ejima, Yosihumi Suzaki

Publikováno v: Journal of the Society of Materials Science, Japan. 59:239-242

We have designed mechanically induced long period fiber grating (LPFG) in which the grating length can be changed to any value up to 16cm as we desire. Measurement of the dependence of the transmission spectrum on the grating length showed that the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f8720482564d018987984657419305e4
https://doi.org/10.2472/jsms.59.239

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Formation of a Double Circular Erosion Pattern on SiO2 Dielectric Target and Its Effect to Utilization Rate in RF Magnetron Sputtering

Autor: Hayato Miyagawa, Yoshifumi Suzaki, Seiki Ejima

Publikováno v: Journal of the Japan Society for Precision Engineering. 76:178-182

A circular erosion pattern is formed on the surface of a circular metal conductor target with permanent magnets on its back in rf magnetron sputtering. In this case, the theory behind the erosion pattern has been established. On the other hand, in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b091fc50b6dd9fec7040655d4ad81c0
https://doi.org/10.2493/jjspe.76.178

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Characterization with the Simulation of Transmission Spectra in Long-Period Fiber Grating Fabricated by the Point Exposure Method

Autor: Seiki Ejima, Hiromu Iwata, Fuminori Imatake, Takashi Yokouchi, Yohei Sawamura, Yoshifumi Suzaki

Publikováno v: Journal of the Society of Materials Science, Japan. 59:787-791

Long-Period Fiber Gratings (LPFGs) which have a periodic structure in the refractive index in the longitudinal direction of the fiber with a period of about 0.5 mm, convert incident light in the fundamental LP01 mode into higher-order LP0m modes thro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07d1c147aeafaca4604b0172af9d5951
https://doi.org/10.2472/jsms.59.787

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Evaluation of Optical Spectrum of Concatenated Fiber Bragg Grating

Autor: Keita Okada, Yoshifumi Suzaki, Yohei Sawamura, Takashi Yokouchi, Hiromu Iwata, Seiki Ejima, Fuminori Imatake, Noriaki Okada

Publikováno v: Journal of the Society of Materials Science, Japan. 58:735-740

Fiber Bragg grating (FBG) is an optical fiber device that selectively reflects only those light signals with the wavelength matched to the grating period of refractive index modulation. When two FBGs with identical index modulation period are concate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5d8df76e9d747f11e25264bce12d54b5
https://doi.org/10.2472/jsms.58.735

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Limitations of Superimposed Fiber Bragg Gratings

Autor: Makoto Yamauchi, Jun-pei Mohri, Kenji Sakamoto, Ryuji Ikebe, Hiromu Iwata, Yoshifumi Suzaki, Takashi Yokouchi, Seiki Ejima, Keisuke Nakayama, Hiroki Mizobuchi, Eiji Izumikawa, Yasuo Mizutani

Publikováno v: Journal of the Society of Materials Science, Japan. 57:181-184

The authors demonstrate the inscription of several Bragg gratings at the same location of a photosensitive fiber. This superimposed Bragg grating was fabricated by two-beam interference method using UV laser light. Effects due to the inscription of m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::818bd7b82a83153497be54cb41c6b05f
https://doi.org/10.2472/jsms.57.181

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Effect of Spherical Aberration on Fabrication of Fiber Bragg Gratings

Autor: Takashi Yokouchi, Jun-pei Mohri, Maki Ando, Yoshifumi Suzaki, Seiki Ejima, Makoto Yamauchi, Yasuo Mizutani, Keisuke Nakayama, Kenji Sakamoto

Publikováno v: Japanese Journal of Applied Physics. 45:5035-5038

Cylindrical convex lenses are commonly used in fabricating fiber Bragg gratings (FBGs) by the phase mask method to increase the energy fluence of UV laser light and thereby enhance FBG productivity. We have found that lens aberrations can affect the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0631102e9178d23e339b3d0def13a758
https://doi.org/10.1143/jjap.45.5035

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Deposition of ZnO film using an open-air cold plasma generator

Autor: Tomokazu Shikama, Seiki Ejima, Shunryo Azuma, Osamu Tanaka, Takahiro Kajitani, Yoshifumi Suzaki, Hideomi Koinuma

Publikováno v: Thin Solid Films. :155-158

Under open-air atmosphere, homogeneous non-equilibrium cold plasma was generated stably by high voltage pulsed power (0.8 kV, 20 Hz) excitation of He and O2 gases. By feeding bis(dipivaloylmethanato)zinc (DPM2Zn) into this plasma, transparent flat Zn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be59a506f206e80d38a397cd25cbce4f
https://doi.org/10.1016/j.tsf.2005.08.166

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Effect of Material Heating on Fabrication of ZnO Thin Films Using Cold He Plasma at Atmospheric Pressure

Autor: Hideomi Koinuma, Tomokazu Shikama, Seiki Ejima, Syunryou Azuma, Osamu Tanaka, Yoshifumi Suzaki, Yasuaki Ide, Takahiro Kajitani

Publikováno v: Journal of the Society of Materials Science, Japan. 54:279-283

Under atmospheric pressure, homogenous non-equilibrium cold plasma was generated by rf (27.12MHz) excitation of He (1700ml/min) and O2 (0-15ml/min) gases. Bis-dipivaloylmethanato zinc (Zn(O2C11H19)2) was vaporized and carried with the He gas flow int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b70287fe6fc5a389bc5ddc9363203cd4
https://doi.org/10.2472/jsms.54.279

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