| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for connecting fiber Bragg gratings which reflects an optical signal wholesomely by avoiding the attenuation of an optical signal by a cladding mode in the case of arranging a plurality of fiber Bragg gratings with different reflection wavelengths in a line. SOLUTION: In multiple connection fiber Bragg gratings formed by connecting the plurality of fiber Bragg gratings for reflecting optical signals with different wavelengths in a line and for reflecting a plurality of optical signals, the plurality of fiber Bragg gratings are connected in an order from a fiber Bragg grating for reflecting an optical signal with a short wavelength to that for reflecting an optical signal with a long wavelength and from a terminal side on which a light signal is made incident to another terminal side, and then, the optical signals are made incident. COPYRIGHT: (C)2004,JPO |
