| 摘要 |
PURPOSE: A WDM(Wavelength Division Multiplexing) optical transmission system is provided to reduce a channel interval and stabilize a peak wavelength by using a variable optical etalon filter as a reference filter. CONSTITUTION: A WDM optical transmission system includes a plurality of light sources, a plurality of multiplexers, a plurality of optical couplers, a plurality of reference filters, a plurality of photo diodes, a plurality of drivers, a plurality of light source stabilizers. The light sources(201,201') are formed with a plurality of laser diodes. The multiplexers(202,202') are used for synthesizing optical signals of the laser diodes of the light sources. The optical couplers(203,203') are used for detecting partially transmitting signals. The reference filters(204,204') are used for generating reference frequencies. The photo diodes(205,205') are used for converting the optical signals of the reference filters to electric signals. The drivers(206,206') are used for amplifying the output signals of the photo diodes. The light source stabilizers(207,207') are used for outputting signals for stabilizing the light sources.
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