| 摘要 |
Multiplexor and demultiplexor devices for WDM or DWDM networks are described . The devices use an optical coupler, a plurality of bandpass optical filters, and a plurality of fibre Bragg gratings dispersed amid the bandpass optical filters. Each fibre Bragg grating has a narrow wavelength reflection band about a predetermined wavelength and is disposed next to a bandpass optical filter.
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