Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Patent
1997-02-07
1998-12-22
Ngo, Hung N.
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
G02B 622
Patent
active
058527010
ABSTRACT:
The present invention relates to a dispersion-shifted fiber having a structure which can restrain the bending loss caused by enlargement in mode field diameter from increasing. This dispersion-shifted fiber is a single-mode optical fiber mainly composed of silica glass and has a cutoff wavelength not shorter than the wavelength of signal light at its length of 2 m and a zero-dispersion wavelength within the range of 1.4 .mu.m to 1.7 .mu.m. Further, the mode field diameter in this dispersion-shifted fiber is 9.0 .mu.m or more.
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Kato Takatoshi
Nishimura Masayuki
Suetsugu Yoshiyuki
Ngo Hung N.
Sumitomo Electric Industries Ltd.
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