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Your search keyword '"Ono, H."' showing total 21 results
Start Over Author "Ono, H." Publisher institution of engineering & technology
21 results on '"Ono, H."'

4. Broadband ASE light source for 1800 nm wavelength region.

Author

Yamada, M., Aozasa, S., and Ono, H.

Subjects
BROADBAND communication systems, LIGHT sources for spectrum analysis, WAVELENGTHS, SPECTRUM analysis, DOPED semiconductors, BANDWIDTHS
Abstract

The first ASE light source with a flat and broadband ASE spectrum in the 1800 nm wavelength region has been developed by combining a Tm3+-Tb3+-doped fibre and a Tm3+-doped fibre. The achieved bandwidth where the ASE intensity exceeded -20 dBm/nm was 162 nm (from 1690 to 1852 nm). [ABSTRACT FROM AUTHOR]

Published
2012
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5. L-band Er3+-doped fluorophosphate glass-fibre amplifier.

Author

Aozasa, S., Mori, A., Oikawa, K., Ono, H., and Yamada, M.

Subjects
ELECTRONIC amplifiers, PHOSPHATES, GLASS fibers, FLUORINE compounds, ELECTRONICS
Abstract

The first L-band EDFA to employ fluorophosphate glass as the host glass material has been realised. The lowest fibre loss yet reported for fluorophosphate glass fibre of 0.7 dB/m is achieved. The amplifier achieved a flat gain with an average value of 21.7 dB in the L-band. [ABSTRACT FROM AUTHOR]

Published
2008
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6. Wavelength demultiplexer using waveguide technology with built-in grating structure for multichannel optical wavelength monitor.

Author

Okayama, H., Harase, K., Uno, Y., Ono, H., Takahashi, H., Arakawa, T., Nishiki, Y., and Ushikubo, T.

Subjects
WAVELENGTH division multiplexing, OPTICAL waveguides
Abstract

A wavelength demultiplexer structure using a channel waveguide grating embedded in a planar waveguide is demonstrated. A segmented waveguide structure is used as a built-in grating fabricated simultaneously with the channel waveguide to simplify the fabrication process. The wavelength peak heights are almost constant and a spatial dispersion value of 6 × 10[SUP5] was obtained. [ABSTRACT FROM AUTHOR]

Published
2003
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