Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Yoshiaki Yamabayashi"'
Publikováno v:
The Journal of Engineering (2014)
To monitor water level at long distance, a fibre-based time-domain reflectometry network is proposed. A collimator at each fibre end of a tree-type network retrieves 1.55 μm wavelength pulses that are reflected back from remote surfaces. Since this
Externí odkaz:
https://doaj.org/article/54351abe911643f6993a7d0838bbc66d
Publikováno v:
The Review of Laser Engineering. 27:231-239
This paper reviews state-of-the-art technologies that will play important roles in high bit rate transmissionsystems. To take full advantage of fiber capacity, combined multiplexing of WDM (Wavelength Division Multiplexing) and TDM (Time Division Mul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59dee63a37e9add2d37107ff6a6d93c5
https://doi.org/10.2184/lsj.27.231
https://doi.org/10.2184/lsj.27.231
Publikováno v:
Electronics and Communications in Japan (Part I: Communications). 80:24-34
In current SDH transmission equipment, channel switching for channel cutoffs and hardware failures, etc., is automated. However, instantaneous signal loss can occur with such channel switching. Protecting a system from failures with a high reliabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a767c67072c6936a602607b7759726b6
https://doi.org/10.1002/(sici)1520-6424(199701)80:1<24::aid-ecja3>3.0.co
https://doi.org/10.1002/(sici)1520-6424(199701)80:1<24::aid-ecja3>3.0.co
Autor:
Yusuke Fujii, Soichi Kobayashi, Toshihiro Suda, Masahiro Abe, Kouhei Takahashi, Yoshiaki Yamabayashi, Yutarou Hatanaka, Ayumu Kawamura
Publikováno v:
2012 17th Opto-Electronics and Communications Conference.
This report compares the effect of a Spot-Size Converter in improving transmission characteristics of kilometer-length of GI-MMF with and without connecter-splicing. A simple calculation technique to simulate the eye-diagram is also proposed and veri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::679d282803ce984703a92447e68c40c8
https://doi.org/10.1109/oecc.2012.6276642
https://doi.org/10.1109/oecc.2012.6276642
Publikováno v:
IEEE Photonics Technology Letters. 13:385-387
We evaluated the averaged Q-factor for optical signals distorted by chromatic dispersion in a transmission fiber. This letter confirms that our method has sensitivity to bit error rate degradation due to both the signal-to-noise ratio degradation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd2c99016925d61ea7350ef6606bef9c
https://doi.org/10.1109/68.917861
https://doi.org/10.1109/68.917861
Publikováno v:
Applied optics. 20(8)
A method is proposed for measurements of the second-order space–time correlation in the transmittance of a given fluctuating medium. Three kinds of light-beat photocurrent are produced by the use of some optical polarization components and two phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a25dffdb506fb713f69c9d7c8ce3ca0f
https://pubmed.ncbi.nlm.nih.gov/20309310
https://pubmed.ncbi.nlm.nih.gov/20309310
Publikováno v:
SPIE Proceedings.
The polysilane optical waveguide fabrications by using photo-bleaching technology with the UV lamp and the UV laser direct drawing technologies are reported. The characteristics of the 1xN optical waveguide splitters and the semiconductor tunable las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5144060f66d69a53d399b621689436fb
https://doi.org/10.1117/12.811790
https://doi.org/10.1117/12.811790
Publikováno v:
SPIE Proceedings.
Polysilane waveguides present advantages of ease in processing using photo-bleaching technology for drawing Bragg grating on the polysilane film and a larger thermo-optic (T/O) effect more than silica. In this paper we present the tunable lasers (TLs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e86c5da2266deefc58ad0471ffe049cb
https://doi.org/10.1117/12.811818
https://doi.org/10.1117/12.811818
Publikováno v:
2008 International Conference on Photonics in Switching.
Polysilane 1 times 3 optical switch circuits were fabricated based on the thermo-optic effect. The waveguide insertion losses were less than -3.1 dB. Optical switch was performed with supplied power of 100 mW or less. Crosstalk attenuation was measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7727e2908a7097a55bc66302435c24c2
https://doi.org/10.1109/ps.2008.4804223
https://doi.org/10.1109/ps.2008.4804223
Publikováno v:
SPIE Proceedings.
Laser oscillation with polysilane waveguide tunable external resonator was observed at 1537nm. The resonator consists of the polysilane single-mode waveguide and the Bragg grating on the core. 5.6 mW laser power was obtained with 70% Bragg reflection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bee59e80f102a2f2cd35378be0c490d
https://doi.org/10.1117/12.753583
https://doi.org/10.1117/12.753583